WO2009089601A2 - Friction plug welding methods and systems - Google Patents

Friction plug welding methods and systems Download PDF

Info

Publication number
WO2009089601A2
WO2009089601A2 PCT/BR2008/000382 BR2008000382W WO2009089601A2 WO 2009089601 A2 WO2009089601 A2 WO 2009089601A2 BR 2008000382 W BR2008000382 W BR 2008000382W WO 2009089601 A2 WO2009089601 A2 WO 2009089601A2
Authority
WO
WIPO (PCT)
Prior art keywords
plug
component part
hole
male plug
friction
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/BR2008/000382
Other languages
French (fr)
Other versions
WO2009089601A3 (en
Inventor
Marcio Fernandes Maciel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Embraer SA
Original Assignee
Embraer SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=40849787&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=WO2009089601(A2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Embraer SA filed Critical Embraer SA
Priority to EP08871056.1A priority Critical patent/EP2257403B1/en
Priority to CN200880127349.4A priority patent/CN101952078B/en
Priority to JP2010542482A priority patent/JP5415455B2/en
Priority to BRPI0819961A priority patent/BRPI0819961A2/en
Publication of WO2009089601A2 publication Critical patent/WO2009089601A2/en
Publication of WO2009089601A3 publication Critical patent/WO2009089601A3/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
    • B23K20/12—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding
    • B23K20/122—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding using a non-consumable tool, e.g. friction stir welding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
    • B23K20/12—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding
    • B23K20/129—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding specially adapted for particular articles or work
    • B23K20/1295—Welding studs
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals

Definitions

  • the present invention relates generally to welding methods and systems.
  • the present invention relates to friction plug welding to plug a hole in a component part wherein a tapered male plug is insertable within and friction welded to the defining surfaces of the hole.
  • Friction plug welding is a well known technique whereby through holes in component parts (especially metal parts) may be filled with a similar material so as to retain substantially the mechanical characteristics of the part.
  • a friction plug welding technique employs a restraint part which defines a blind cavity axially aligned with the hole to be plugged so as to receive a terminal end of the male plug during the welding operation.
  • the bottom surface of the cavity serves as a limit stop for the maleF plug and receives a flash flow of weld mix material exiting the hole at the back face of the component part that is generated during welding. Excessive flash flow may also be generated at the front face of the component part. Such flash flow can be undesirable as it may lead to annular weld defects at the front and back faces of the component part.
  • a friction plug welding methods and systems are provided so as to plug a hole extending through a component part from front and back faces thereof.
  • a sacrificial plate having an opening therethrough will be positioned against the back face of the component part so that the opening is coaxially aligned with the hole to be plugged.
  • a friction weld region will therefore be formed between the male plug and defining surfaces of both the hole extending through the component part and the opening extending through the sacrificial plate.
  • a plug rod is provided with an annular shoulder flange which defines a plane parallel to the front face of the component part.
  • the male ' plug is preferably tapered, that is having a frustroconical shape.
  • An annular arcuate surface may also be provided which joins the male plug to the shoulder flange.
  • the sacrificial plate will be positioned against the back face of the component part with a restraint part.
  • the restraint part may be provided with a recessed region which is open adjacent to the back face of the component part and which is sized and configured to receive the sacrificial plate therein.
  • the restraint part may also be provided with a space (e.g., a through hole or recessed cavity) of sufficient depth for receiving a terminal end portion of the male plug therein during the friction plug welding.
  • the male plug and the sacrificial plate are each formed of the same or a compatibly similar material as that of the component part.
  • the plug rod and the sacrificial plate may be removed from the component part along respective planes coincident with the front and back faces thereof. When removed, therefore, a segment of the male plug will be positioned as a plug within the hole and is welded to the component part. A new hole may thus be formed through the remaining segment of the male plug.
  • FIGURE 1 is a schematic cross-sectional diagram of an embodiment of a friction plug welding technique according to the present invention shown in a state at the beginning of the welding operation;
  • FIGURE 2 is a schematic cross-sectional diagram of an embodiment of a friction plug welding technique similar to FIGURE 1 , but shown in a state at the end of the welding operation; and FIGURES 3A through 3C progressively depict the manner in which a plug-welded hole may be dressed and re-drilled.
  • FIGURES 1 and 2 show a plug welding technique which embodies the present invention.
  • a component part P has a through hole H defined between the part's front and back faces F f and F b which is intended to be plugged.
  • the hole H will have been previously worked by appropriate machining techniques so as to correct any shape deficiencies that may exist and to establish a substantially frustroconical configuration having a central axis
  • a cylindrical plug rod 10 is provided having at its terminal end a male plug 10a having a frustroconical shape that is substantially conforms to the frustroconical shape of the hole H.
  • the male plug 10a is preferably formed of a compatible (if not the same) material as the material of the component part P.
  • the component part P and the male plug 10a may be formed of a metal (e.g., aluminum alloy), it is also conceivable that they may be formed of compatible non-metallic materials, such as thermoplastics or resin composite materials.
  • compatible non-metallic materials such as thermoplastics or resin composite materials.
  • the plug rod 10 defines an annular shoulder flange 10b which is joined to the male plug 10a by a concavely arcuate annular surface 10c.
  • the annular surface 10c thus provides a smooth transition between the frustroconical male plug 10a and the should flange 10b, the latter defining a plane which is parallel to the front face F f of the component part P.
  • a restraint part 12 is provided on the back face F b and defines a space 12a.
  • the space 12a need not be provided as a through aperture as shown in FIGURES 1 and 2, but instead may be provided as a blind cavity.
  • the restraint part 12 also includes an annular recessed region 12b which is coaxially aligned relative to the central axis A c with the aperture 12a and is open adjacent to the back face F b of component part P.
  • the recessed region 12b is sized and configured to receive therein a sacrificial plate 14 formed of the same or compatibly similar material as the component part P and the male plug 10a.
  • the sacrificial plate 14 defines a opening 14a therethrough which is aligned coaxially with the hole H and aperture 12a relative to the central axis A c .
  • the opening 14a has a diameter which is at least the same or somewhat less than the diameter of the hole H at the back face F b of the component part P.
  • the aperture 12a on the other hand, most preferably has a diameter which is greater than that of the opening 14a.
  • the plug rod 10, and hence the male plug 10a thereof is coaxially aligned with the central axis A 0 and brought into contact with the defining surfaces of the hole H while being rotated about the central axis Ac (arrow R) by a suitable drive means 11. Friction between the defining surfaces of the male plug 10a, the hole H and the opening 14a will cause their respective materials to melt and flow together while melted to form a weld region 16 therebetween (see FIGURE 2).
  • the weld region 16 extends to and includes a portion of the sacrificial plate 14 surrounding the opening 14a. As such, the weld region extends into the aperture 12a of the so that flash regions 16a are not immediately adjacent the back face F b of the component part P. In such a manner, weld defects (e.g., annular regions of incomplete welding) are minimized (if not avoided entirely) since the weld region 16 unitahly extends beyond the face F b of the component part
  • the flash flow of melt material is directed laterally by means of the annular shoulder flange 10b of the plug rod 10 so that flash regions 16b are formed at a radially displaced location on the front face F f .
  • the regions 16a are therefore not located immediately adjacent the hole H at the front face F f and in a manner similar to the location of the flash regions 16a annular weld defects are minimized (if not eliminated entirely).
  • the plug rod 10, component part P and the sacrificial plate 14 are thus welded one to another via the weld region 16.
  • FIGURE 3A depicts a state wherein the welded plug rod 10, component part P and sacrificial plate 14 are removed from the welding machine (e.g., removed from the restraint part 12).
  • the plug rod 10 and the sacrificial plate 14 may be removed from the component part P by cutting such structures along planes coincident with the front and back faces F f , F b , respectively.
  • the plugged hole H will be comprised of a residual segment of the male plug 10a (designated 10a' in FIGURE 3B) and the remaining part of the weld region 16.
  • the plugged hole H may then be re-drilled to form a new properly sized hole H' as shown in FIGURE 3C.
  • the thus renovated component part P may then be placed back into service.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Butt Welding And Welding Of Specific Article (AREA)
  • Connection Of Plates (AREA)
  • Pressure Welding/Diffusion-Bonding (AREA)
  • Standing Axle, Rod, Or Tube Structures Coupled By Welding, Adhesion, Or Deposition (AREA)

Abstract

Friction plug welding methods and systems plug a hole extending through a component part from front and back faces thereof. A sacrificial plate having an opening therethrough may be positioned against the back face of the component part with assistance from a restraint part (which is also preferably provided with a space of sufficient dept to receive a terminal end of the male plug) so that the opening is coaxially aligned with the hole to be plugged. Upon advancing a male plug of a plug rod into the hole under friction plug welding conditions, a friction weld region will therefore be formed between the male plug and defining surfaces of both the hole extending through the component part and the opening extending through the sacrificial plate. The plug rod may include an annular shoulder flange which defines a plane parallel to the front face of the component part so that flash flow from the friction welding will be displaced laterally of the hole. The male plug may be frustroconically shaped. An annular arcuate surface may also be provided which joins the male plug to the shoulder flange.

Description

FRICTION PLUG WELDING METHODS AND SYSTEMS
FIELD OF THE INVENTION
The present invention relates generally to welding methods and systems. In preferred forms, the present invention relates to friction plug welding to plug a hole in a component part wherein a tapered male plug is insertable within and friction welded to the defining surfaces of the hole.
BACKGROUND AND SUMMARY OF THE INVENTION
Friction plug welding is a well known technique whereby through holes in component parts (especially metal parts) may be filled with a similar material so as to retain substantially the mechanical characteristics of the part. For example, in U.S. Patent Application Publication 2006/0131364 published on June 22, 2006 (the entire content of which is expressly incorporated hereinto by reference), a friction plug welding technique is disclosed which employs a restraint part which defines a blind cavity axially aligned with the hole to be plugged so as to receive a terminal end of the male plug during the welding operation. The bottom surface of the cavity serves as a limit stop for the maleF plug and receives a flash flow of weld mix material exiting the hole at the back face of the component part that is generated during welding. Excessive flash flow may also be generated at the front face of the component part. Such flash flow can be undesirable as it may lead to annular weld defects at the front and back faces of the component part.
It would therefore be desirable if friction plug welding techniques could be provided which minimize (if not eliminate entirely) such annular weld defects. It is towards providing such solutions that the present invention is directed.
A friction plug welding methods and systems are provided so as to plug a hole extending through a component part from front and back faces thereof. In some embodiments a sacrificial plate having an opening therethrough will be positioned against the back face of the component part so that the opening is coaxially aligned with the hole to be plugged. Upon advancing a male plug of a plug rod into the hole under friction plug welding conditions, a friction weld region will therefore be formed between the male plug and defining surfaces of both the hole extending through the component part and the opening extending through the sacrificial plate.
In certain advantageous embodiments, a plug rod is provided with an annular shoulder flange which defines a plane parallel to the front face of the component part. Thus, advancement of the male plug of the plug rod into the hole will cause the annular shoulder flange to be adjacent to a corresponding region of the front face surrounding the hole. As such, flash flow from the friction welding will be displaced laterally of the hole. The male'plug is preferably tapered, that is having a frustroconical shape. An annular arcuate surface may also be provided which joins the male plug to the shoulder flange.
According to some embodiments, the sacrificial plate will be positioned against the back face of the component part with a restraint part. The restraint part may be provided with a recessed region which is open adjacent to the back face of the component part and which is sized and configured to receive the sacrificial plate therein. The restraint part may also be provided with a space (e.g., a through hole or recessed cavity) of sufficient depth for receiving a terminal end portion of the male plug therein during the friction plug welding.
It is usually preferred that the male plug and the sacrificial plate are each formed of the same or a compatibly similar material as that of the component part.
Following a friction plug welding operation, the plug rod and the sacrificial plate may be removed from the component part along respective planes coincident with the front and back faces thereof. When removed, therefore, a segment of the male plug will be positioned as a plug within the hole and is welded to the component part. A new hole may thus be formed through the remaining segment of the male plug.
These and other aspects and advantages will become more apparent after careful consideration is given to the following detailed description of the preferred exemplary embodiments thereof.
BRIEF DESCRIPTION OF THE ACCOMPANYING DRAWINGS
Reference will hereinafter be made to the accompanying drawings, wherein like reference numerals throughout the various FIGURES denote like structural elements, and wherein;
FIGURE 1 is a schematic cross-sectional diagram of an embodiment of a friction plug welding technique according to the present invention shown in a state at the beginning of the welding operation;
FIGURE 2 is a schematic cross-sectional diagram of an embodiment of a friction plug welding technique similar to FIGURE 1 , but shown in a state at the end of the welding operation; and FIGURES 3A through 3C progressively depict the manner in which a plug-welded hole may be dressed and re-drilled.
DETAILED DESCRIPTION OF THE INVENTION
Accompanying FIGURES 1 and 2 show a plug welding technique which embodies the present invention. In this regard, a component part P has a through hole H defined between the part's front and back faces Ff and Fb which is intended to be plugged. As is conventional in practice, the hole H will have been previously worked by appropriate machining techniques so as to correct any shape deficiencies that may exist and to establish a substantially frustroconical configuration having a central axis
Ac.
A cylindrical plug rod 10 is provided having at its terminal end a male plug 10a having a frustroconical shape that is substantially conforms to the frustroconical shape of the hole H. The male plug 10a is preferably formed of a compatible (if not the same) material as the material of the component part P. In this regard, although the component part P and the male plug 10a may be formed of a metal (e.g., aluminum alloy), it is also conceivable that they may be formed of compatible non-metallic materials, such as thermoplastics or resin composite materials. Thus, while the drawings depict metallic materials, the techniques disclosed herein are equally applicable to non-metallic materials.
The plug rod 10 defines an annular shoulder flange 10b which is joined to the male plug 10a by a concavely arcuate annular surface 10c. The annular surface 10c thus provides a smooth transition between the frustroconical male plug 10a and the should flange 10b, the latter defining a plane which is parallel to the front face Ff of the component part P. A restraint part 12 is provided on the back face Fb and defines a space 12a. The space 12a need not be provided as a through aperture as shown in FIGURES 1 and 2, but instead may be provided as a blind cavity. Whether in the form of a through aperture or a blind cavity, the space 12a will have sufficient depth to receive a terminal end of the male plug 10a when performing a friction welding operation. The restraint part 12 also includes an annular recessed region 12b which is coaxially aligned relative to the central axis Ac with the aperture 12a and is open adjacent to the back face Fb of component part P.
The recessed region 12b is sized and configured to receive therein a sacrificial plate 14 formed of the same or compatibly similar material as the component part P and the male plug 10a. The sacrificial plate 14 defines a opening 14a therethrough which is aligned coaxially with the hole H and aperture 12a relative to the central axis Ac. The opening 14a has a diameter which is at least the same or somewhat less than the diameter of the hole H at the back face Fb of the component part P. The aperture 12a, on the other hand, most preferably has a diameter which is greater than that of the opening 14a.
During a welding operation, the plug rod 10, and hence the male plug 10a thereof, is coaxially aligned with the central axis A0 and brought into contact with the defining surfaces of the hole H while being rotated about the central axis Ac (arrow R) by a suitable drive means 11. Friction between the defining surfaces of the male plug 10a, the hole H and the opening 14a will cause their respective materials to melt and flow together while melted to form a weld region 16 therebetween (see FIGURE 2).
It will be especially observed that the weld region 16 extends to and includes a portion of the sacrificial plate 14 surrounding the opening 14a. As such, the weld region extends into the aperture 12a of the so that flash regions 16a are not immediately adjacent the back face Fb of the component part P. In such a manner, weld defects (e.g., annular regions of incomplete welding) are minimized (if not avoided entirely) since the weld region 16 unitahly extends beyond the face Fb of the component part
P.
At the front face Ff, the flash flow of melt material is directed laterally by means of the annular shoulder flange 10b of the plug rod 10 so that flash regions 16b are formed at a radially displaced location on the front face Ff. The regions 16a are therefore not located immediately adjacent the hole H at the front face Ff and in a manner similar to the location of the flash regions 16a annular weld defects are minimized (if not eliminated entirely). Following the welding operation, the plug rod 10, component part P and the sacrificial plate 14 are thus welded one to another via the weld region 16.
Accompanying FIGURES 3A through 3C depict the manner in which the plug-welded hole H may be dressed and re-drilled. In this regard, FIGURE 3A depicts a state wherein the welded plug rod 10, component part P and sacrificial plate 14 are removed from the welding machine (e.g., removed from the restraint part 12). The plug rod 10 and the sacrificial plate 14 may be removed from the component part P by cutting such structures along planes coincident with the front and back faces Ff, Fb, respectively. As shown in FIGURE 3B, once such structures are removed, the plugged hole H will be comprised of a residual segment of the male plug 10a (designated 10a' in FIGURE 3B) and the remaining part of the weld region 16. The plugged hole H may then be re-drilled to form a new properly sized hole H' as shown in FIGURE 3C. The thus renovated component part P may then be placed back into service. It will be understood that, while some directional language (e.g., "front" and "back") has been employed for purposes of discussion above and will be present in the claims below, such language is nonlimiting to the present invention. Thus, it is intended that the front and back surfaces Ff and Fb of the component part P connote the relative orientation between the plug rod 10 and the sacrificial plate 14 and thus does not necessarily correspond to the technical "front" and "back" of the component part P.
Therefore, while the invention has been described in connection with what is presently considered to be the most practical and preferred embodiment, it is to be understood that the invention is not to be limited to the disclosed embodiment, but on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.

Claims

WHAT IS CLAIMED IS:
1. A friction plug welding method to plug a hole extending through a component part between front and back faces thereof, the method comprising:
(a) positioning a sacrificial plate having an opening therethrough against the back face of the component part so that the opening is coaxially aligned with the hole to be plugged; and
(b) advancing a male plug of a plug rod into the hole under friction plug welding conditions to cause a friction weld region to be formed between the male plug and defining surfaces of both the hole extending through the component part and the opening extending through the sacrificial plate.
2. The method of claim 1 , comprising providing the plug rod with an annular shoulder flange which defines a plane parallel to the front face of the component part, wherein the method comprising advancing the male plug of the plug rod into the hole so that the annular shoulder flange is adjacent a corresponding region of the front face surrounding the hole to cause flash flow from the friction welding to be displaced laterally of the hole.
3. The method of claim 1 , comprising positioning the sacrificial plate against the back face of the component part with a restraint part.
4. The method of claim 3, comprises providing the restraint part with a recessed region which is open adjacent to the back face of the component part and which is sized and configured to receive the sacrificial plate therein.
5. The method of claim 4, wherein the restraint part includes a space for receiving a terminal end portion of the male plug therein during the friction plug welding.
6. The method of claim 1 , wherein the male plug and the sacrificial plate are each formed of the same or a compatible material as the component part.
7. The method of claim 1 , further comprising removing the plug rod and the sacrificial plate from the component part along respective planes coincident with the front and back faces thereof.
8. The method of claim 7, wherein a segment of the male plug remains as a plug for the hole and is welded to the component part, and wherein the method comprising forming a new hole through the remaining segment of the male plug.
9. A friction plug welding method to plug a hole extending through a component part from front and back faces thereof, the method comprising:
(a) providing a plug rod having a terminal male plug extending outwardly therefrom and an annular shoulder flange which defines a plane parallel to the front face of the component part;
(b) orienting the plug rod so the male plug is oriented coaxially with the hole and the annular should flange is oriented parallel to the front face; and (c) advancing the male plug into the hole under friction plug welding conditions to cause a friction weld region to be formed between the male plug and defining surfaces of the hole.
10. The method of claim 9, further comprising:
(d) positioning a sacrificial plate having an opening therethrough against the back face of the component part so that the opening is coaxially aligned with the hole to be plugged, and wherein the friction plug welding conditions of step (c) cause the friction weld region to also be formed between the male plug and defining surfaces of the opening of the sacrificial plate.
11. The method of claim 10, wherein step (d) comprises positioning the sacrificial plate against the back face of the component part with a restraint part.
12. The method of claim 11 , comprises providing the restraint part with a recessed region which is open adjacent to the back face of the component part and which is sized and configured to receive the sacrificial plate therein.
13. The method of claim 12, wherein the restraint part includes a space for receiving a terminal end portion of the male plug therein during the friction plug welding.
14. The method of claim 9, wherein the male plug and the sacrificial plate are each formed of the same or a compatible material as the component part.
15. The method of claim 10, further comprising removing the plug rod and the sacrificial plate from the component part along respective planes coincident with the front and back faces thereof.
16. The method of claim 15, wherein a segment of the male plug remains as a plug for the hole and is welded to the component part, and wherein the method comprising forming a new hole through the remaining segment of the male plug.
17. A friction plug welding system to plug a hole" extending through a component part from front and back faces thereof, the system comprising: a sacrificial plate having an opening therethrough which is positionable against the back face of the component part so that the opening is coaxially aligned with the hole to be plugged; and a plug rod having a male plug capable of being advanced into the hole under friction plug welding conditions to cause a friction weld region to be formed between the male plug and defining surfaces of both the hole extending through the component part and the opening extending through the sacrificial plate.
18. The system of claim 17, wherein the plug rod comprises an annular shoulder flange which defines a plane parallel to the front face of the component part, wherein the male plug of the plug rod is capable of being advanced into the hole so that the annular shoulder flange is adjacent a corresponding region of the front face surrounding the hole to cause flash flow from the friction welding to be displaced laterally of the hole.
19. The system of claim 17, further comprising a restraint part for positioning the sacrificial plate against the back face of the component part.
20. The system of claim 19, wherein the restraint part comprises a recessed region which is open adjacent to the back face of the component part and which is sized and configured to receive the sacrificial plate therein.
21. The system of claim 20, wherein the restraint part includes a space for receiving a terminal end portion of the male plug therein during the friction plug welding.
22. The system of claim 17, wherein the male plug and the sacrificial plate are each formed of the same or a compatible material as the component part.
23. The plug rod of claim 17, wherein the male plug has a frustroconical shape.
24. The plug rod of claim 23, further comprising an arcuate concave surface joining the male plug to the shoulder flange.
25. A plug rod for a friction plug welding system to plug a hole extending through a component part from front and back faces thereof, the plug rod comprising: an outwardly extending terminal male plug; and an annular shoulder flange which defines a plane parallel to the front face of the component part, wherein the plug rod is capable of orientation relative to the component part so the male plug is coaxially positioned with the hole and the annular should flange is positioned parallel to the front face thereof.
26. The plug rod of claim 25, wherein the male plug has a frustroconical shape.
27. The plug rod of claim 26, further comprising an arcuate concave surface joining the male plug to the shoulder flange.
28. A plug welding system which comprises a plug rod as in claim 25.
29. A plug welding system as in claim 28, which further comprises a sacrificial plate having an opening therethrough which is positionable against the back face of the component part so that the opening is coaxially aligned with the hole to be plugged.
30. The system of claim 29, further comprising a restraint part for positioning the sacrificial plate against the back face of the component part.
31. The system of claim 30, wherein the restraint part comprises a recessed region which is open adjacent to the back face of the component part and which is sized and configured to receive the sacrificial plate therein.
32. The system of claim 31 , wherein the restraint part includes a space for receiving a terminal end portion of the male plug therein during the friction plug welding.
33. The system of claim 29, wherein the male plug and the sacrificial plate are each formed of the same or a compatible material as the component part.
PCT/BR2008/000382 2008-01-15 2008-12-05 Friction plug welding methods and systems Ceased WO2009089601A2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP08871056.1A EP2257403B1 (en) 2008-01-15 2008-12-05 Friction plug welding methods and systems
CN200880127349.4A CN101952078B (en) 2008-01-15 2008-12-05 Friction plug welding method and system
JP2010542482A JP5415455B2 (en) 2008-01-15 2008-12-05 Friction plug welding method and system
BRPI0819961A BRPI0819961A2 (en) 2008-01-15 2008-12-05 "Friction and Plug Rod Welding Methods and Systems"

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US12/014,737 US7726541B2 (en) 2008-01-15 2008-01-15 Friction plug welding methods and systems
US12/014,737 2008-01-15

Publications (2)

Publication Number Publication Date
WO2009089601A2 true WO2009089601A2 (en) 2009-07-23
WO2009089601A3 WO2009089601A3 (en) 2010-02-04

Family

ID=40849787

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/BR2008/000382 Ceased WO2009089601A2 (en) 2008-01-15 2008-12-05 Friction plug welding methods and systems

Country Status (6)

Country Link
US (2) US7726541B2 (en)
EP (1) EP2257403B1 (en)
JP (1) JP5415455B2 (en)
CN (1) CN101952078B (en)
BR (1) BRPI0819961A2 (en)
WO (1) WO2009089601A2 (en)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5094140B2 (en) * 2006-11-09 2012-12-12 日野自動車株式会社 Member joint structure
JP4972417B2 (en) * 2006-12-15 2012-07-11 日野自動車株式会社 Member joining method and structure
DE102008049055B4 (en) * 2008-09-26 2010-08-05 Lufthansa Technik Ag Method for repairing a housing flange of an aircraft engine
US8540134B2 (en) * 2009-09-11 2013-09-24 The Boeing Company Reinforcement of friction plug welds
US20110277866A1 (en) * 2010-05-13 2011-11-17 Advanced Drainage Systems, Inc. Apparatus and Method For Sealing A Ventilation Channel of A Pipe
CN103501953B (en) * 2011-04-28 2016-01-20 普锐特冶金技术日本有限公司 Friction stirring connecting method and device, tool group
EP2741887B1 (en) 2011-08-09 2021-04-07 Lockheed Martin Corporation Method for friction stir welding tube ends for a heat exchanger
US9764375B2 (en) * 2012-03-02 2017-09-19 Brigham Young University Friction bit joining of materials using a friction rivet
CN102794609A (en) * 2012-08-24 2012-11-28 无锡透平叶片有限公司 Method for re-drilling center holes of blades
US9440288B2 (en) 2012-11-05 2016-09-13 Fluor Technologies Corporation FSW tool with graduated composition change
WO2014081431A1 (en) * 2012-11-21 2014-05-30 Fluor Corporation Friction Stir Welding Using a Sacrificial Anvil
US8678268B1 (en) 2012-11-21 2014-03-25 Fluor Technologies Corporation Friction stir welding using a sacrificial anvil
US20140205369A1 (en) * 2013-01-21 2014-07-24 Magna Powertrain Ag & Co. Kg Joint design welding dissimilar materials
CN105980095B (en) * 2013-08-26 2019-01-15 洛克希德马丁公司 Method of friction stir welding a tube to an element using a tubular anvil and structures made by the method
WO2015096675A1 (en) * 2013-12-23 2015-07-02 上海交通大学 Friction welding structural component, cylinder head of water-cooled internal-combustion engine, water-cooled internal-combustion engine and mechanical device comprising the water-cooled internal-combustion engine
CN106271037A (en) * 2016-08-25 2017-01-04 上海航天设备制造总厂 A kind of stirring friction welding seam local incomplete penetration defect removing method
CN107803583B (en) * 2016-09-09 2020-02-21 首都航天机械公司 A pull-type inertia friction welding method and device
CN109483042B (en) * 2018-11-16 2021-08-17 首都航天机械有限公司 A self-locking friction plug repair welding method
DE102019203051A1 (en) * 2019-03-06 2020-09-10 Ford Global Technologies, Llc Fastening element for friction welding and a method for friction welding a fastening element to a flat workpiece
CN114871781B (en) * 2022-05-18 2024-02-27 淮南市泰能电力工程有限公司 Pressurized water reactor device with nickel-based alloy ultrasonic argon arc welding seam
US12576455B2 (en) * 2022-10-20 2026-03-17 Standex International Corporation Friction stir welding process for large metallic components
US12337410B1 (en) * 2023-01-26 2025-06-24 United Launch Alliance, L.L.C. Systems and methods for filling a void on at least one metal workpiece

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6230958B1 (en) 1999-09-30 2001-05-15 Lockheed Martin Corporation Friction pull plug welding: dual chamfered plate hole
US20060131364A1 (en) 2004-04-27 2006-06-22 Snecma Moteurs Friction plug welding method for a hole in a metal part, use of a restraint part and supporting part for implementing the method

Family Cites Families (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3477115A (en) * 1967-03-17 1969-11-11 Caterpillar Tractor Co Method of fastening parts by friction welding
US3848389A (en) * 1969-12-29 1974-11-19 Textron Inc Bimetal rivets
JPS527832U (en) * 1975-07-02 1977-01-20
JPS58157582A (en) * 1982-03-11 1983-09-19 Kawasaki Heavy Ind Ltd Method and device for repairing internal defect of metallic material
US5271287A (en) * 1992-07-28 1993-12-21 Materials Analysis, Inc. Multi-metal composite gear/shaft
US6213379B1 (en) * 1997-08-27 2001-04-10 Lockheed Martin Corporation Friction plug welding
US5975406A (en) * 1998-02-27 1999-11-02 The Boeing Company Method to repair voids in aluminum alloys
US6327766B1 (en) * 1999-04-14 2001-12-11 Portland Transmission Company, Inc. Method for repairing studs fixed to a cover for a transmission torque connector
US20020027156A1 (en) * 2000-04-11 2002-03-07 Coletta Edmond R. Friction pull plug welding: dual chamfered plate hole
DE10015239A1 (en) * 2000-03-27 2001-10-04 Profil Verbindungstechnik Gmbh Functional element arrangement, functional element, auxiliary joining part, assembly part and method for producing an assembly part
JP3400409B2 (en) * 2000-04-28 2003-04-28 マツダ株式会社 Joining method and joining device
GB0028021D0 (en) * 2000-11-17 2001-01-03 Rolls Royce Plc Method of fabricating structures
US6769595B2 (en) * 2000-12-20 2004-08-03 Alcoa Inc. Friction plunge riveting
JP2002059278A (en) * 2001-06-04 2002-02-26 Hitachi Ltd Friction stir welding method
JP2003205373A (en) * 2002-01-10 2003-07-22 Toshiba Corp Plug used for rotary friction welding and rotary friction welding device using the same
US6742697B2 (en) * 2002-04-29 2004-06-01 The Boeing Company Joining of structural members by friction plug welding
US6854634B2 (en) * 2002-05-14 2005-02-15 The Boeing Company Method of manufacturing rivets having high strength and formability
JP3726786B2 (en) * 2002-07-31 2005-12-14 マツダ株式会社 Joining method and joining tool
JP3740104B2 (en) * 2002-08-09 2006-02-01 三菱重工業株式会社 Friction welding method
JP2004106037A (en) * 2002-09-20 2004-04-08 Hitachi Ltd How to join metal materials
US6892924B2 (en) * 2002-12-18 2005-05-17 General Motors Corporation Precessing rivet and method for friction stir riveting
US6883699B2 (en) * 2003-01-06 2005-04-26 General Motors Corporation Rivet with sliding cap for friction stir riveting
DE10337971B4 (en) * 2003-08-19 2006-08-17 Gkss-Forschungszentrum Geesthacht Gmbh Method for increasing the strength and / or load capacity of workpieces
US7163136B2 (en) * 2003-08-29 2007-01-16 The Boeing Company Apparatus and method for friction stir welding utilizing a grooved pin
US7126076B2 (en) * 2004-02-05 2006-10-24 Edison Welding Institute, Inc. Method for repairing defects in a metallic substrate using welding
US6988651B2 (en) * 2004-02-17 2006-01-24 General Motors Corporation Friction stir rivet drive system and stir riveting methods
GB0414913D0 (en) * 2004-07-01 2004-08-04 Rolls Royce Plc A method of welding onto thin components
US7841504B2 (en) * 2004-09-21 2010-11-30 The Boeing Company Apparatus and system for welding self-fixtured preforms and associated method
US20060096091A1 (en) * 2004-10-28 2006-05-11 Carrier Charles W Method for manufacturing aircraft engine cases with bosses
DE102004059625A1 (en) * 2004-12-10 2006-06-22 Ejot Gmbh & Co. Kg Reibschweißverbindung between a sheet metal part and a rotating body
US20060175381A1 (en) * 2005-02-10 2006-08-10 Pei-Chung Wang Friction stir nut and method of joining therewith
JP2007270889A (en) * 2006-03-30 2007-10-18 Owari Precise Products Co Ltd bolt
ATE538895T1 (en) * 2006-06-13 2012-01-15 Sii Megadiamond Inc CONNECTING THREE ELEMENTS BY A FRICTION WELDING PROCESS

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6230958B1 (en) 1999-09-30 2001-05-15 Lockheed Martin Corporation Friction pull plug welding: dual chamfered plate hole
US20060131364A1 (en) 2004-04-27 2006-06-22 Snecma Moteurs Friction plug welding method for a hole in a metal part, use of a restraint part and supporting part for implementing the method

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP2257403A4

Also Published As

Publication number Publication date
US20100084454A1 (en) 2010-04-08
EP2257403A2 (en) 2010-12-08
CN101952078B (en) 2014-09-10
CN101952078A (en) 2011-01-19
BRPI0819961A2 (en) 2016-11-01
EP2257403A4 (en) 2014-07-02
US7726541B2 (en) 2010-06-01
JP5415455B2 (en) 2014-02-12
US20090179065A1 (en) 2009-07-16
WO2009089601A3 (en) 2010-02-04
JP2011509829A (en) 2011-03-31
EP2257403B1 (en) 2019-09-04
US7975896B2 (en) 2011-07-12

Similar Documents

Publication Publication Date Title
US7726541B2 (en) Friction plug welding methods and systems
US20040148760A1 (en) Method of joining a sheet metal part to a metal tube
KR101788519B1 (en) Metal joined body and method for manufacturing metal joined body
US5624067A (en) Method and apparatus for weld joining pipe sections
JP2011056531A (en) Method for manufacturing piston rod
JP4257111B2 (en) Gas cylinder liner and method of manufacturing the same
JPH1054893A (en) Tube and end plug assembly and method for joining end plug to hollow tube
JP2009262164A (en) Joining method of metallic member
US7530487B2 (en) Method of welding onto thin components
JP2000237893A (en) Welded joint and manufacturing method thereof
JPH11197786A (en) Manufacturing method of collar or collar nut
JP2010253488A (en) Method for forming tube outer periphery protrusion and metal tube having tube outer periphery protrusion
JP5802040B2 (en) Stud structure
JPH11158866A (en) Steel pipe welding backing metal
JP2005069415A (en) Method for forming insertion projection of metal tube
WO2020235666A1 (en) Hydraulic adapter unit, hydraulic pipe member, and hydraulic pipe member production method
EP3199287A1 (en) Bonded body, magnetic rotating arc bonding method, and method for manufacturing bonded body
JP2012232326A (en) Joining object and method of manufacturing the same
JPH01218774A (en) Butt welding method and press die used therefor
JPH1163329A (en) How to attach the pipe connection flange
JP3514616B2 (en) Installation method of branch joint of existing pipeline
JP2010125484A (en) Method for welding collar, and collar
JP3743920B2 (en) Method for manufacturing cap of stud for arc stud welding made of deformed steel bar and cap
JP2003004182A (en) Insertion protrusion molding method
JP2006144842A (en) Wing bolt

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 200880127349.4

Country of ref document: CN

121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 08871056

Country of ref document: EP

Kind code of ref document: A2

WWE Wipo information: entry into national phase

Ref document number: 2010542482

Country of ref document: JP

Ref document number: 2008871056

Country of ref document: EP

NENP Non-entry into the national phase

Ref country code: DE

DPE1 Request for preliminary examination filed after expiration of 19th month from priority date (pct application filed from 20040101)
ENP Entry into the national phase

Ref document number: PI0819961

Country of ref document: BR

Kind code of ref document: A2

Effective date: 20100715