WO2004018136A1 - Procede de raccordement d'un tube a un element - Google Patents

Procede de raccordement d'un tube a un element Download PDF

Info

Publication number
WO2004018136A1
WO2004018136A1 PCT/US2003/024036 US0324036W WO2004018136A1 WO 2004018136 A1 WO2004018136 A1 WO 2004018136A1 US 0324036 W US0324036 W US 0324036W WO 2004018136 A1 WO2004018136 A1 WO 2004018136A1
Authority
WO
WIPO (PCT)
Prior art keywords
flange
tube
proximate
contact
folded
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/US2003/024036
Other languages
English (en)
Inventor
Venkatasubramanian Ananthanarayanan
Dharmendra Ramachandra (Dharam), M.
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.)
Delphi Technologies Inc
Original Assignee
Delphi Technologies Inc
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
Priority claimed from US10/226,179 external-priority patent/US6847001B2/en
Application filed by Delphi Technologies Inc filed Critical Delphi Technologies Inc
Priority to AU2003257099A priority Critical patent/AU2003257099A1/en
Publication of WO2004018136A1 publication Critical patent/WO2004018136A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L13/00—Non-disconnectable pipe joints, e.g. soldered, adhesive, or caulked joints
    • F16L13/02—Welded joints
    • 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
    • B23K11/00—Resistance welding; Severing by resistance heating
    • B23K11/02—Pressure butt 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
    • B23K11/00—Resistance welding; Severing by resistance heating
    • B23K11/06—Resistance welding; Severing by resistance heating using roller electrodes
    • B23K11/065—Resistance welding; Severing by resistance heating using roller electrodes for welding curved planar seams
    • B23K11/066—Resistance welding; Severing by resistance heating using roller electrodes for welding curved planar seams of tube sections
    • 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
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/20—Bonding
    • B23K26/21—Bonding by welding
    • B23K26/24—Seam welding
    • B23K26/28—Seam welding of curved planar seams
    • 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
    • B23K33/00—Specially-profiled edge portions of workpieces for making soldering or welding connections; Filling the seams formed thereby
    • B23K33/002—Crimping or bending the workpieces at the joining area
    • 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
    • B23K33/00—Specially-profiled edge portions of workpieces for making soldering or welding connections; Filling the seams formed thereby
    • B23K33/004—Filling of continuous seams
    • B23K33/006—Filling of continuous seams for cylindrical workpieces
    • 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
    • B23K2101/00—Articles made by soldering, welding or cutting
    • B23K2101/04—Tubular or hollow articles
    • B23K2101/06—Tubes

Definitions

  • the present invention relates generally to attaching parts together, and more particularly to a method for joining a tube to a member.
  • Resistance welding also known as electric-resistance welding
  • electric-resistance welding is a known metallurgical process wherein metal is heated by its own resistance to a semi-f ⁇ sed (i.e., soft) or fused (i.e., molten) state by the passage of very heavy electric currents for very short lengths of time and then welded by the application of pressure.
  • Gas metal arc welding uses a consumable metal wire as one electrode and the parts as another electrode, and moves the consumable metal wire (or the parts) to draw an arc and weld the parts together.
  • the welding is accompanied by a gas (such as a rnixture of argon and carbon dioxide) to prevent oxidation and stabilize the arc.
  • a gas such as a rnixture of argon and carbon dioxide
  • Such gas metal arc welding is well known.
  • solid metal wire or metal core wire i.e., an annular-solid wire whose core is filled with metal powder such as a mixture of metal, alloy and or oxide powders
  • metal powder such as a mixture of metal, alloy and or oxide powders
  • the welding arc creates a molten weld puddle which results in the welding together of the parts.
  • Gas metal arc welding requires expensive welding equipment, the molten weld puddle tends to flow away from the joint area depending on weld position resulting in welds of inconsistent quality, and the process requires a long cycle time between welds.
  • Conventional methods for attaching parts together also include friction welding. To join two tubes together end to end, one of the tubes is rotated about its longitudinal axis, and the tube ends are pressed together, wherein friction causes heating of the ends creating the weld. To join a tube to a plate, the tube is rotated about its longitudinal axis, and the tube end and the plate are pressed together, wherein friction causes heating creating the weld.
  • Friction welding requires expensive welding equipment, and the process requires a long cycle time between welds. Also, friction welding may not be applicable if no part to be welded can be rotated.
  • Conventional methods for attaching a tube to a member additionally include bonding a flange of a tube to a member using an adhesive wherein the adhesive-coated tube and member are heated in an oven to cure the adhesive. When the tube is a thin-walled tube, the heat of the oven may deform the tube.
  • Conventional methods for attaching a tube to a member further include laser- beam or electron-beam welding together of the abutting ends of two straight tubes or the overlapping ends of two straight tubes which require expensive welding equipment and expensive part geometry tolerances prior to welding. What is needed is an improved method for joining a tube to a member.
  • a method of the invention is for joining a first tube to a member and includes steps a) through d).
  • Step a) includes obtaining a first tube having a flange
  • step b) includes obtairiing a member.
  • Step c) includes, after steps a) and b), positioning the first tube and the member with the flange contacting the member either directly or indirectly through an intervening joining material.
  • Step d) includes, after step c), locally heating the first tube and/or the member proximate the contact of the flange and the member without substantially heating the first tube and/or the member apart from proximate the contact of the flange and the member.
  • Another method of the invention is for joining a first tube to a second tube and includes steps a) through e).
  • Step a) includes obtaining a first tube having an outwardly-extending folded end flange positioned proximate an end of the first tube.
  • Step b) includes obtaining a second tube having an outwardly- extending non-folded end flange positioned proximate an end of the second tube.
  • Step c) includes applying a curable adhesive joining material on the folded end flange and/or the non-folded end flange.
  • Step d) includes, after steps a) through c), positioning the first tube and the second tube with the end of the first tube located within the second tube, and with the curable adhesive joining material located between and directly contacting the folded end flange and the non-folded end flange.
  • Step e) includes, after step d), locally resistance heating the first tube and/or the member proximate the contact of the flange and the member curing the adhesive joining material without substantially heating the first tube and/or the member apart from proximate the contact of the flange and the member.
  • An additional method of the invention is for joining a first tube to a member and includes steps a) through d).
  • Step a) includes obtaining a first tube having a flange
  • step b) includes obtaining a member.
  • Step c) includes, after steps a) and b), positioning the first tube and the member with the flange contacting the member either directly or indirectly through an intervening joining material.
  • Step d) includes, after step c), welding/brazing together the first tube and the member proximate the contact of the flange and the member without substantially heating the first tube and/or the member apart from proximate the contact of the flange and the member.
  • a tube flange in joining a tube to a member provides a stronger j oint and allows easier j oining of thin walled tubes .
  • By applying only local heating proximate the contact of the flange and the member without substantially heating the first tube and/or the member apart from proximate the contact of the flange and the member avoids deformation of the tube (especially a thin-walled tube) and/or member from heating regions not involved in creating the joint.
  • Figure 1 is a block diagram of the first method of the invention for metalmrgicaUy joining a tube to a member
  • Figure 2 is a schematic, side cross-sectional view of the first embodiment of first and second tubes and welding electrodes used in a first example of the second method, showing the tubes aligned;
  • Figure 3 is a view, as in Figure 2, but showing the two tubes metallurgically joined together with the welding electrodes removed;
  • Figure 4 is a view, as in Figure 2, but showing a second embodiment of the tubes and welding electrodes used in a second example of the second method;
  • Figure 5 is a view, as in Figure 2, but showing a third embodiment of the tubes and welding electrodes used in an alternate second example of the second method
  • Figure 6 is a schematic, side cross-sectional view of an embodiment of a tube, a plate, and welding electrodes used in the third method, showing the tube aligned with the plate;
  • Figure 7 is a schematic, side cross-sectional view of an embodiment of two tubes positioned for joining together by a generalized method of the invention
  • Figure 8 is a view, as in Figure 7, but of a tube having a non-folded end flange positioned for joining to a plate;
  • Figure 9 is a view, as in Figure 7, but of a tube having a folded end flange positioned for joining to a plate
  • Figure 10 is a view, as in Figure 7, but of a tube having a folded end flange positioned for joining to a thicker solid having a through hole;
  • Figure 11 is a view, as in Figure 7, but of a tube having a non-folded end flange positioned for joining to a thicker solid having a through hole;
  • Figure 12 is a view, as in Figure 7, but with an intervening joining material disposed between the flange of the first tube and the member; and
  • Figure 13 is a view, as in Figure 7, but showing both a "transverse- folded" flange and a "centerline-folded" flange.
  • a first method of the invention is for metallurgically joining a tube to a member and is shown in block diagram form in Figure 1.
  • the first method includes steps a) through d).
  • Step a) is labeled as Obtain Tube Having A Fold" in block 10 of Figure 1.
  • Step a) includes obtaining a tube having a longitudinal axis and having an end portion, wherein the end portion includes a fold, and wherein the fold includes longitudinally-spaced-apart first and second fold portions.
  • a "fold" of an end portion of a tube is a fold of the tube wall of an end portion of the tube.
  • Step b) is labeled in block 12 of Figure 1 as "Obtain Member".
  • Step b) includes obtaining a member.
  • Step c) is labeled in block 14 of Figure 1 as "Dispose Tube and Member".
  • Step c) includes, after steps a) and b), disposing the tube and the member with the end portion contacting the member.
  • Step d) is labeled as "Create Weld Zone" in block 16 of Figure 1.
  • Step d) includes, after step c), creating a resistance welding current path through the tube and the member proximate the end portion and relatively moving the end portion deformingly against the member creating a weld zone which includes at least some of the end portion and at least some of the member.
  • proximate includes, without limitation, the term "at”.
  • step d) does not melt any of the end portion and does not melt any of the member.
  • step d) melts at least some of the end portion or at least some of the member or melts at least some of the end portion and at least some of the member.
  • the tube is a substantially right- circular cylindrical tube.
  • the tube has a cross section which has a substantially rectangular shape, wherein the cutting plane for the cross section is perpendicular to the longitudinal axis of the tube.
  • Other examples of the tube are left to the artisan.
  • the member is a second tube having a straight second end portion, having a second end portion having a second fold with longitudinally-spaced-apart fold portions, or having a second end portion of arbitrary shape, wherein step c) coaxially aligns the tubes end-to- end and disposes the tubes with end portion to end portion contact.
  • the second tube is a substantially right-circular cylindrical tube.
  • the second tube has a cross section which has a substantially rectangular shape, wherein the cutting plane for the cross section is perpendicular to the longitudinal axis of the second tube.
  • the member is a plate. Other examples of members and variations of second tubes are left to the artisan.
  • the fold is an annular fold substantially coaxially aligned with the longitudinal axis, and step d) creates an annular (or non-annular) weld zone.
  • the annular fold is a radially-outwardly-protruding annular fold.
  • the annular fold is a radially-inwardly-protruding annular fold.
  • the end portion includes at least one additional annular fold coaxially aligned with the longitudinal axis and having two longitudinally spaced-apart fold portions.
  • step d) uses a resistance- welding first electrode contacting the tube proximate the fold and a resistance- welding second electrode contacting the member.
  • a non- electrode support is disposed inside or outside the tube, and in one example extends around the other end of the tube, to radially support the tube and/or to axially support or push the tube during step d).
  • step d) does not melt any of the end portion and does not melt any of the member. In another execution of the first method, step d) melts at least some of the end portion or at least some of the member or at least some of the end portion and at least some of the member.
  • a second method of the invention is for metallurgically joining one tube to another tube and includes steps a) through d).
  • Step a) includes obtaining a first tube 118 having a longitudinal axis 120 and having a first end portion 122, wherein the first end portion includes a first annular fold 124 substantially coaxially aligned with the longitudinal axis 120, and wherein the first annular fold 124 includes longitudinally-spaced-apart first and second fold portions 126 and 128.
  • Step b) includes obtaining a second tube 130 having a second end portion 132.
  • Step c) includes, after steps a) and b), coaxially aligning the first and second tubes 118 and 130 and disposing the first and second tubes 118 and 130 with the first end portion 122 contacting the second end portion 132.
  • Step d) includes, after step c), creating a resistance welding current path through the first and second tubes 118 and 130 proximate the first and second end portions 122 and 132 and relatively longitudinally moving the first end portion 122 deformingly against the second end portion 132 creating an annular weld zone 134 which includes at least some of the first end portion 122 and at least some of the second end portion 132.
  • the second end portion 132 includes a second annular fold 136 having longitudinally spaced-apart third and fourth fold portions 138 and 140, wherein the wall thicknesses of the first and second tubes 118 and 130 are substantially equal, and wherein step c) disposes the first and second tubes 118 and 130 with the second annular fold 136 longitudinally contacting the first annular fold 126.
  • the first and second annular folds 124 and 136 each are radially-outwardly-protruding annular folds.
  • step d) uses an annular resistance- welding first electrode 142 longitudinally contacting the first annular fold 124 and uses an annular resistance-welding second electrode 144 longitudinally contacting the second annular fold 136.
  • Unnumbered arrows in the figures indicate the direction of relative longitudinal movement of the electrodes during step d).
  • the first electrode 142 longitudinally contacts the second electrode 144 at the completion of step d). This ensures that no overheating of the weld zone will occur, as can be appreciated by those skilled in the art.
  • the first and second tubes 118 and 130 comprise low carbon steel such as AISI 1008 to 1010 having an outside diameter of generally 6 millimeters and a thickness of generally 2 millimeters.
  • pulses (totaling 1/3 of a second) of electric current of generally 5,000 amperes (and in one variation 15,000 to 20,000 amperes) are applied while applying a force of generally 300 to 800 pounds to the electrodes/support.
  • the first, second, and/or third methods are not limited to specific materials, dimensions, electric current, and forces, as is understood by those skilled in the art. Any weldable materials such as copper, aluminum alloy, stainless steel, etc. can be used, as can be appreciated by the artisan. The particular choice of electric current, forces, and part dimensions, etc. are within the ordinary level of skill of the artisan.
  • the second end portion 232 of the second tube 230 is a substantially straight end portion having a substantially-longitudinally-facing annular end 246, wherein the second tube 230 has a greater wall thickness than the first tube 218, and wherein step c) disposes the first and second tubes 218 and 230 with the annular end 246 longitudinally contacting the first annular fold 224.
  • the second tube 230 is a nut.
  • the first annular fold 224 is a radially-outwardly-protruding annular fold.
  • step d) uses an annular resistance- welding first electrode 242 longitudinally contacting the first annular fold 224 and uses a resistance- welding second electrode 244 disposed in radial contact with the second end portion 232.
  • the first electrode 242 longitudinally contacts the second electrode 244 at the completion of step d).
  • a non-electrode support 248 contacts the other end of the second tube 230.
  • an annular electrode, not shown, is added inside the second tube. Other arrangements of electrodes and non-electrode supports are left to the artisan.
  • the first annular fold 324 of the first end portion 322 of the first tube 318 protrudes radially outward and longitudinally upward as shown in the figure.
  • the first electrode 342 is disposed outside the first tube 318
  • the second electrode 344 is disposed outside the second tube 330.
  • a non-electrode first support 350 is disposed inside the first tube 318 and extends around the other end of the first tube 318
  • a non-electrode second support 352 is disposed inside the second tube 330 and extends around the other end of the second tube 330.
  • the positions of the first electrode and the first support are interchanged, and the positions of the second electrode and the second support are interchanged.
  • a third method of the invention is for metallurgically joining a tube to a plate and includes steps a) through d).
  • Step a) includes obtairiing a tube 418 having a longimdinal axis 420 and having an end portion 422, wherein the end portion 422 includes an annular fold 424 substantially coaxially aligned with the longimdinal axis 420, and wherein the annular fold 424 includes longitudinally-spaced-apart first and second fold portions 426 and 428.
  • Step b) includes obtaining a plate 454 having first and second sides 456 and 458.
  • Step c) includes, after steps a) and b), aligning the tube 418 substantially perpendicular to the plate 454 and disposing the tube 418 and the plate 454 with the end portion 422 contacting the second side 458.
  • Step d) includes, after step c), creating a resistance welding current path through the tube 418 and the plate 454 proximate the end portion 422 and relatively longitudinally moving the end portion 422 deformingly against the plate 454 creating an annular weld zone which includes at least some of the end portion 422 and at least some of the plate 454.
  • step d) uses an annular resistance-welding first electrode 442 longitudinally contacting the annular fold 424.
  • step d) uses an annular resistance- welding second electrode 444 which is substantially coaxially aligned with the longitudinal axis 420 and which longitudinally contacts the first side 456 of the plate 454 only outside an area on the first side 456 corresponding to the area on the second side 458 of the plate 454 where the annular fold 424 contacts the second side 458 of the plate 454.
  • the plate 454 is a sheet metal plate.
  • Other implementations and constructions are left to the artisan.
  • enablements, etc. of the first method applicable to tube-to-plate joining are equally applicable to the tWrd method.
  • the previously- discussed electrodes are installed in "T"-shaped electrode holders of a resistance welding machine (not shown).
  • each electrode is formed from two sections which are brought together around the tube or on the plate and engage that tube or plate.
  • the electrode sections have surfaces generally corresponding to the shape of the engaged portion of that tube or plate.
  • the electrode sections are attached together before installing the electrode in the corresponding upper or lower one of the "T" -shaped electrode holders of the resistance welding machine. It is noted that resistance welding is less expensive than gas metal arc welding or friction welding. Resistance welding also has a shorter cycle time between welds than does gas metal arc welding or friction welding.
  • a generalized method of the invention is for joining a first tube 510 to a member 512 and includes steps a) through d).
  • Step a) includes obtaining a first tube 510 having a flange 514
  • step b) includes obtaining a member 512.
  • Step c) includes, after steps a) and b), disposing the first tube 510 and the member 512 with the flange 514 contacting the member 512 either directly or indirectly through an intervening joining material (no joining material is shown in Figure 7).
  • Step d) includes, after step c), locally heating the first tube 510 and/or the member 512 proximate the contact of the flange 514 and the member 512 without substantially heating the first tube 510 and/or the member 512 apart from proximate the contact of the flange 514 and the member 512.
  • Figure 7 gives an example of the generalized method showing a first tube 510 having a flange 514, wherein the flange 514 is an annular outwardly- extending end flange disposed proximate an end 516 of me first tube 510.
  • the flange 514 is a folded flange having contacting first and second fold portions 518 and 520
  • the member 512 is a second tube 522 having a flange 524 which is an annular outwardly-extending and non-folded end flange.
  • Figure 8 gives another example showing a first tube 526 having a flange
  • Figure 9 gives another example showing a first tube 532 having a flange 534 which is an annular outwardly-extending and folded end flange having spaced-apart first and second fold portions 536 and 538 and showing a member 540 which is a non-tubular member and in particular is a plate (such as a sheet metal plate).
  • Figure 10 gives another example showing a first tube 542 having a flange 544 which is an annular outwardly-extending and folded end flange having contacting first and second fold portions 546 and 548 and showing a member 550 which is a non-tubular member and in particular is a thicker solid having a through hole 552.
  • Figure 11 gives another example showing a first tube 554 having a flange 556 which is an annular outwardly-extending and non- folded end flange and showing a member 558 which is a non-tubular member and in particular is a thicker solid having a through hole 560
  • Figure 12 gives another example showing a first tube 562 having a flange 564, wherein the flange 564 is an annular outwardly-extending end flange.
  • the flange 564 is a folded flange having contacting first and second fold portions 566 and 568
  • the member 570 is a second tube 572 having a flange 574 which is an annular outwardly-extending and non-folded end flange.
  • a joining material 576 is shown disposed on the flange 564 of the first tube 562.
  • the joining material 576 is either unattached to the flange and the member or is plated to at least one of the flange and the member.
  • joining materials include, without limitation, curable adhesive joining materials, brazing joining materials and filler welding joining materials.
  • the flange 564 has at least one groove containing at least some of the joining material 576, wherein the flange 564 outside the groove is in direct contact with the member 570 to facilitate the passage of current between the flange 564 and the member 570 when resistance heating (i.e., heating by electric current) is used for the local heating step.
  • Figure 13 gives another example showing a first tube 578 having a flange 580, wherein the flange 580 is an annular outwardly-extending end flange which is a folded flange folded along a transverse direction which is substantially transverse to the centerline of the tube.
  • the member 582 is a second tube 584 having a flange 586, wherein the flange 586 is an annular outwardly-extending end flange which is a folded flange folded along a direction which is substantially parallel to the centerline of the tube.
  • a flange such as flange 514, is not an annular flange but is a non-annular flange or a plurality of non-annular flanges at the same or different tube heights.
  • the flange is an inwardly-extending flange.
  • the flange is not an end flange disposed proximate an end of the tube but is a flange disposed at a location which is not proximate an end of the tube.
  • Other variations of flanges are left to the artisan.
  • the first tube such as first tube 510, is a straight tube or is a curved tube (not shown).
  • the first tube is a round tube, a square tube, or a rectangular tube. Other shapes of first tubes are left to the artisan.
  • step c) disposes the first tube 510 and the second tube 522 with the flange 514 of the first tube 510 contacting the end flange of the second tube 522 either directly (as shown in Figure 7) or indirectly through an intervening joining material.
  • step c) coaxially aligns the first tube 542 with the through hole 552 of the non-tubular member with the flange 544 of the first tube 542 contacting the non-tubular member either directly (as shown in Figure 10) or indirectly through an intervening joining material.
  • step c) the step of disposing a curable adhesive joining material (such as a curable adhesive type of the joining material 576 shown in Figure 12) on the flange 564 and or the member 570 at the contact of the flange 564 and the member 570, and step d) includes locally resistance heating the first tube 562 and/or the member 570 proximate the contact of the flange 564 and the member 570 curing the adhesive joining material without substantially heating the first tube 562 and/or the member 570 apart from proximate the contact of the flange 564 and the member 570.
  • a curable adhesive joining material such as a curable adhesive type of the joining material 576 shown in Figure 12
  • step d An example of resistance heating (although at high welding temperatures with the understanding that such high temperatures would be lowered for any adhesive curing operation) was previously discussed with respect to Figures 2 and 4-6.
  • step d the optional step of applying a force to urge the flange 564 against the member 570.
  • laser-beam or electron-beam heating replaces the resistance heating.
  • Other local heating variations are left to the artisan.
  • step d) includes laser- beam welding (such as with laser 588 shown in Figure 9) together the first tube 532 and the member 540 proximate the contact of the flange 534 and the member 540 without substantially heating the first tube 532 and or the member 540 apart from proximate the contact of the flange 534 and the member 540.
  • the flange 534 is a folded flange having spaced-apart first and second fold portions 536 and 538, and there is included, during step d), the step of applying a force to relatively move the folded flange deformingly against the member 540.
  • the deforming force is applied to any shape of the flange of the first tube.
  • no deforming force is applied regardless of the shape of the flange of the first tube.
  • step d) includes electron-beam welding (such as with electron-beam welder 590 shown in Figure 9) together the first tube 532 and the member 540 proximate the contact of the flange 534 and the member 540 without substantially heating the first tube 532 and/or the member 540 apart from proximate the contact of the flange 534 and the member 540.
  • the flange 534 is a folded flange having spaced-apart first and second fold portions 536 and 538, and there is also included, during step d), the step of applying a force to relatively move the folded flange deformingly against the member 540.
  • step d) includes creating a resistance welding current path through the first tube 532 (shown in Figure 9) and the member 540 proximate the contact of the flange 534 and the member 540 without substantially heating the first tube 532 and/or the member 540 apart from proximate the contact of the flange 534 and the member 540 creating a weld zone which includes at least some of the flange 534 and at least some of the member 540.
  • the flange 534 is a folded flange having spaced-apart first and second fold portions 536 and 538, and there is also included, during step d), the step of applying a force to relatively move the folded flange deformingly against the member 540.
  • the welding is autogenous without the use of any filler material.
  • the previously-discussed deforming force is applied, and in another modification, the previously-discussed deforming force is not applied.
  • step c) the step of disposing a brazing joining material on the flange and/or the member at the contact of the flange and the member, and step d) includes creating a resistance brazing current path (similar to a resistance welding current path) through the first tube and the member proximate the contact of the' flange and the member without substantially heating the first tube and/or the member apart from proximate the contact of the flange and the member creating a braze zone which includes at least some of the flange and at least some of the member.
  • the previously-discussed deforming force is applied, and in another modification, the previously- discussed deforming force is not applied.
  • One expression of the generalized method involves an adhesive, is for joining a first tube 562 (shown in Figure 12) to a second tube 572, and includes steps a) through e).
  • Step a) includes obtaining a first tube 562 having an outwardly-extending folded end flange disposed proximate an end of the first tube.
  • Step b) includes obtaining a second tube 572 having an outwardly- extending non-folded end flange disposed proximate an end of the second tube.
  • Step c) includes disposing a curable adhesive joining material (such as a curable adhesive type of the joining material 576) on the folded end flange and/or the non-folded end flange.
  • Step d) includes, after steps a) through c), disposing the first tube and the second tube with the end of the first tube disposed within the second tube, and with the curable adhesive joining material disposed between and directly contacting the folded end flange and the non-folded end flange.
  • Step e) includes, after step d), locally resistance heating the first tube and/or the member proximate the contact of the flange and the member curing the adhesive joining material without substantially heating the first tube and/or the member apart from proximate the contact of the flange and the member.
  • Step a) includes obtaining a first tube 510 having a flange 514
  • step b) includes obtaining a member 512
  • Step c) includes, after steps a) and b), disposing the first tube 510 and the member 512 with the flange 514 contacting the member 512 either directly or indirectly through an intervening joining material.
  • Step d) includes, after step c), welding/brazing together the first tube 510 and the member 512 proximate the contact of the flange 514 and the member 512 without substantially heating the first tube 510 and/or the member 512 apart from proximate the contact of the flange 514 and the member 512.
  • welding/brazing includes welding or brazing or partially welding and partially brazing. Examples include, without limitation, resistance welding/brazing, laser-beam welding/brazing and electron-beam welding brazing.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Plasma & Fusion (AREA)
  • Standing Axle, Rod, Or Tube Structures Coupled By Welding, Adhesion, Or Deposition (AREA)

Abstract

L'invention concerne un procédé permettant de raccorder un tube (510) à un élément (512). Ce procédé consiste à utiliser un tube (510) présentant une bride (514), et un élément (512). Le tube et l'élément sont positionnés de sorte que la bride entre en contact avec l'élément de manière directe ou indirecte au moyen d'un matériau de raccordement intermédiaire. Le tube et/ou l'élément sont chauffés localement à proximité du point de contact de la bride et de l'élément, sans être chauffés sensiblement à l'exception de la partie située à proximité du point de contact de la bride et de l'élément. Selon un exemple, le chauffage local est réalisé par soudage, avec ou sans matériau d'apport, de type soudage par résistance, soudage par faisceau laser ou par faisceau d'électrons. Selon un autre exemple, le chauffage local est réalisé par brasage. Selon un autre exemple, un matériau de raccordement adhésif durcissable est placé sur la bride et/ou sur l'élément, l'adhésif étant situé entre la bride et l'élément et étant en contact direct avec ceux-ci, le chauffage local permettant de durcir l'adhésif.
PCT/US2003/024036 2002-08-22 2003-08-01 Procede de raccordement d'un tube a un element Ceased WO2004018136A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2003257099A AU2003257099A1 (en) 2002-08-22 2003-08-01 Method for joining a tube to a member

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US10/226,179 US6847001B2 (en) 2002-08-22 2002-08-22 Method for metallurgically joining a tube to a member
US10/226,179 2002-08-22
US10/602,907 2003-06-24
US10/602,907 US6953147B2 (en) 2002-08-22 2003-06-24 Method for joining a tube to a member

Publications (1)

Publication Number Publication Date
WO2004018136A1 true WO2004018136A1 (fr) 2004-03-04

Family

ID=31949784

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2003/024036 Ceased WO2004018136A1 (fr) 2002-08-22 2003-08-01 Procede de raccordement d'un tube a un element

Country Status (2)

Country Link
AU (1) AU2003257099A1 (fr)
WO (1) WO2004018136A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55136593A (en) * 1979-04-10 1980-10-24 Dengensha Mfg Co Ltd Production of welded joint
US4496410A (en) * 1981-04-02 1985-01-29 Raychem Limited Production of dimensionally recoverable articles
US5538076A (en) * 1993-12-17 1996-07-23 Nippondenso Co., Ltd. Pipe fitting mechanism and heat exchanger using same
US6390124B1 (en) * 1999-08-06 2002-05-21 Futaba Industrial Co. Ltd. Fuel inlet and manufacturing method thereof

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55136593A (en) * 1979-04-10 1980-10-24 Dengensha Mfg Co Ltd Production of welded joint
US4496410A (en) * 1981-04-02 1985-01-29 Raychem Limited Production of dimensionally recoverable articles
US5538076A (en) * 1993-12-17 1996-07-23 Nippondenso Co., Ltd. Pipe fitting mechanism and heat exchanger using same
US6390124B1 (en) * 1999-08-06 2002-05-21 Futaba Industrial Co. Ltd. Fuel inlet and manufacturing method thereof

Also Published As

Publication number Publication date
AU2003257099A1 (en) 2004-03-11

Similar Documents

Publication Publication Date Title
US6953147B2 (en) Method for joining a tube to a member
EP1545824B1 (fr) Feuilles de metal, tubes, et autres formes similaires faisant l'objet d'un soudage resistant a la deformation
US6693251B1 (en) Method for manufacturing a metallic tubular assembly
US20090114623A1 (en) Method for welding employing current
US6689981B1 (en) Method for metallurgically capping an end of a tube
US6717091B2 (en) Method for metallurgically attaching together two tubes
US6791051B2 (en) Method for metallurgically attaching a tube to a member
US6791052B1 (en) Method for resistance welding a tube to a member
US7423232B2 (en) Method for resistance welding/brazing a tube to a member
US6875944B2 (en) Method for resistance welding/brazing a tube to a container
CN114599470B (zh) 接合物品的制造方法以及制造装置
WO2004019377A2 (fr) Procede de raccordement metallurgique d'un tube a un element
WO2004018136A1 (fr) Procede de raccordement d'un tube a un element
WO2004019376A2 (fr) Procede de raccordement metallurgique d'un tube a un element

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NO NZ OM PH PL PT RO RU SD SE SG SK SL TJ TM TN TR TT TZ UA UG UZ VN YU ZA ZM ZW

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LU MC NL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
122 Ep: pct application non-entry in european phase
NENP Non-entry into the national phase

Ref country code: JP

WWW Wipo information: withdrawn in national office

Country of ref document: JP