EP2769780A1 - Procédé destiné à générer un élément en tôle - Google Patents
Procédé destiné à générer un élément en tôle Download PDFInfo
- Publication number
- EP2769780A1 EP2769780A1 EP13000852.7A EP13000852A EP2769780A1 EP 2769780 A1 EP2769780 A1 EP 2769780A1 EP 13000852 A EP13000852 A EP 13000852A EP 2769780 A1 EP2769780 A1 EP 2769780A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- openings
- perforation
- sheet metal
- metal part
- diameter
- 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.)
- Granted
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D13/00—Corrugating sheet metal, rods or profiles; Bending sheet metal, rods or profiles into wave form
- B21D13/02—Corrugating sheet metal, rods or profiles; Bending sheet metal, rods or profiles into wave form by pressing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D13/00—Corrugating sheet metal, rods or profiles; Bending sheet metal, rods or profiles into wave form
- B21D13/10—Corrugating sheet metal, rods or profiles; Bending sheet metal, rods or profiles into wave form into a peculiar profiling shape
Definitions
- the invention relates to a method for producing a sheet metal part having a plurality of openings and a relief-like surface.
- Punched sheet metal parts with a relief-like surface are widely used, for example, as decorative elements for cladding purposes, as the outer wall of equipment or in combination with insulating material as a soundproofing element.
- the relief-like surface serves to increase the rigidity of the sheet metal part, since the starting material has a small sheet thickness.
- the arrangement of openings serves for example for the passage of air or for sound absorption. Taking into account the respective requirements, both the relief-like surface and the arrangement of the openings should be adapted to the particular case of use. However, this would require a variety of different tools, which is expensive for cost reasons. The production of special designs is possible with many individual production steps, but not economical.
- the invention has for its object to provide a method for producing a sheet metal part with openings and a relief-like surface, can be made easier with the sheet metal parts with different structure with respect to the surface and openings.
- the method according to the invention it is possible to provide perforations in the sheet metal part, wherein the number of openings is variable. Characterized in that the openings produced by the perforation are generated simultaneously with or after dousing, the shape and the position of the dome is precisely determinable, whereby not only the properties of the sheet metal part are affected, but also an excellent aesthetic design is achieved.
- the tip assembly generated by Kalotti für can be carried out on one side or alternately based on the sheet plane.
- the sheet metal part is provided in one step with an additional perforation, wherein the diameter of the openings is ⁇ 0.1 mm, said perforation is performed before Kalottieren.
- At least one of the working steps namely the dicing or one of the perforations based on the surface of the sheet metal part is only partially performed.
- This has the advantage that the work steps are performed only on those surfaces of the sheet metal part, where this is necessary. Also, individual requirements, which are to be placed on the sheet metal part, are taken into account. To speed up the process and precise positioning, it may be advantageous that the steps of Kalottierens and the perforation are performed at the crests simultaneously.
- at least one of the working steps, namely the dicing or one of the perforations is subdivided into time sections which are carried out successively on the sheet metal part. This has the advantage that only a simpler tool must be created for certain designs, which can be favorable for cost reasons.
- the openings of the steps of perforating can be produced in different ways, for example by punching or punching. These types of methods allow for different shapes of openings, optionally round or square or also arbitrarily shaped. Such punched or perforated openings expediently have a diameter ⁇ 0.5 mm.
- the openings of the additional perforation and / or the openings of the perforation are made at the crests with different distances between the openings. For the perforations on the crests, this means that an opening is not produced at each crest but, for example, in one area on every other crest and in another area on every third crest.
- the number of openings of the additional perforation is at least ⁇ 1 / cm 2 and at most 36 / cm 2 and the spacing of the openings of this perforation is ⁇ 1 mm.
- Another possible variation for the production of the sheet metal part is that the shape of the dome arrangement produced by Kalotti für is variable with respect to the distance of the crests from each other and / or the dome height.
- the thickness of the starting material of the sheet metal part is preferably 0.01 mm to 1.0 mm. It is also possible to produce the crests rounded or flattened.
- the steps of the method according to the invention are advantageously carried out in a press.
- stainless steel for example the material number 1.4301, 1.4541 or 1.4828, high temperature steels, as they are known under the trade name Inconel, light alloys of aluminum or magnesium and copper, brass or titanium ,
- the Fig. 1 shows the basic arrangement of an alternating tip assembly in the plan view of a section of a formed by Kalotti für sheet metal part 1.
- the arrangement the crest is regular in the example shown, but it is also possible to create an irregular pattern or areas with different patterns. It is also possible, based on the surface of the sheet metal part 1 only partially perform the dome, so that the dome assembly is provided only in certain areas of the sheet metal part 1.
- the sheet metal part can serve a band, a sheet metal plate or a circuit board, wherein the board is cut by means of a cutting tool, a pair of scissors or a laser from the sheet metal strip or sheet metal plate.
- the sheet preferably has a thickness of 0.01 mm to 1.0 mm.
- the Fig. 2 shows a section of the sheet metal part 1 along the line II-II in Fig. 1 , from which the surface of a dome arrangement with upwardly directed dome 2, which is generated by the dome formation, becomes clear.
- Two from the sheet plane E upwardly directed adjacent crests 2, are arranged at a distance a, in between there is a reaching to the sheet plane E section.
- the crests 2 Left in Fig. 2 the crests 2 have a round shape, whereas the right in Fig. 2 a variant with a flat Kuppendach is shown. Other shapes of the crests are possible.
- the Fig. 3 shows a section through the sheet metal part 1 along the line III-III in Fig. 1 , ie in the diagonal direction, wherein in this sectional plane, the adjacent, upwardly directed crests 2 have a distance b. Between two crests 2 is a downwardly directed dome 3, whereby the alternating dome arrangement is given.
- the upwardly directed crests 2 with respect to the sheet plane E slightly more pronounced than the downwardly directed crests 3.
- the generated by the Kalotti für expression on both sides of the sheet plane E is regular in the illustrated embodiment, but other forms are possible.
- the crests 2, 3 have a round shape, the crests 2, 3 are flattened on the right.
- the Fig. 4 shows an enlarged view of a section through the sheet metal part 1, which is essentially the Fig. 3 corresponds, but with slightly less pronounced peaks 2 and 3, which are formed alternately to the sheet plane E.
- S denotes the sheet thickness, which is between 0.01 mm and 1.0 mm.
- the entire expression, ie on both sides of the sheet plane E is referred to as the embossing height h. It should be noted that the embossing height h does not have to extend symmetrically to the sheet plane E, but can also be shifted to this.
- Left in Fig. 4 are the summits 2, 3 round and right in Fig. 4 the summits 2, 3 are flat.
- the Fig. 5 shows an alternative embodiment of the sheet metal part 1, wherein based on the sheet plane E, the crests 2 are formed out only on one side.
- the FIGS. 4 and 5 show the diced sheet metal part 1 before creating openings through the perforation.
- the Fig. 6 shows an enlarged view of a section of a section through the sheet metal part 1 with generated by the additional perforation openings 4 and 5 in the left section and by perforation on crests 2, 3 generated openings 6 and 7 in the middle and in the right section.
- the sheet metal part 1 is brought by duping into a contour with an alternating dome arrangement of upwardly directed dome 2 and downwardly directed dome 3.
- the openings 4 are formed as a nozzle and have a diameter of 0.1 mm to 0.3 mm.
- the openings 5 are punched or punched with a diameter ⁇ 0.5 mm in any form.
- 3 openings 6 in the form of nozzles or as an opening 7 can be made by punching or punching.
- the openings 6 and 7 are basically arranged at the highest point of a dome 2, wherein the lower studs 3 can be provided with openings, if necessary.
- the openings 7 may, for example, have a diameter of> 0.5 mm, wherein the shape may be round or square as well as arbitrary. In contrast, the diameter of the openings 6 is in the range of 0.3 mm to 2.0 mm.
- the openings 6 and 7 are each introduced simultaneously with or after dicing to form the dome assembly.
- the nozzle shape of the openings 4 and 6 may be different depending on the shape of the tool, with round or square or oval cross sections are possible.
- the angle ⁇ , which include the nozzle walls, is preferably in the range of 10 ° to 60 °, in particular 30 °.
- the Fig. 7 shows a section of a section through a sheet metal part 1 with a surface generated by Kalotti für and two perforations.
- the additional perforation forms openings 4, which are made in the form of nozzles, with a diameter of 0.1 mm to 0.3 mm, wherein the axial direction of the nozzles 4 is different, depending on the position in the calotted sheet metal part.
- the additional perforation can instead of the nozzles 4 or in addition to these punched or perforated openings 5 form, as already Fig. 6 is described.
- openings 6 in the form of nozzles with a diameter of 0.3 mm to 2.0 mm or punched or perforated openings 7, wherein the openings 6 and / or 7 are arranged at the highest point of the dome 2.
- the additional perforation occurs before the dousing, the perforation at the dome can be done simultaneously with the dousing or afterwards.
- the Fig. 8 shows a section of a section through a sheet metal part 1, wherein for the sake of simplicity only the relief-like surface created by Kalotti für and the openings 6 formed by the perforation at the crests are shown in the form of nozzles.
- the openings 6 are located at the highest point of the respective studs 2, 3, wherein these nozzles of the openings 6 are formed in the same direction.
- An alternative embodiment of the sheet metal part 1 is in Fig. 9 shown in which the nozzles of the openings 6 are directed opposite.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Punching Or Piercing (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP13000852.7A EP2769780B1 (fr) | 2013-02-20 | 2013-02-20 | Procédé destiné à générer un élément en tôle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP13000852.7A EP2769780B1 (fr) | 2013-02-20 | 2013-02-20 | Procédé destiné à générer un élément en tôle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP2769780A1 true EP2769780A1 (fr) | 2014-08-27 |
| EP2769780B1 EP2769780B1 (fr) | 2020-11-18 |
Family
ID=47754283
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP13000852.7A Active EP2769780B1 (fr) | 2013-02-20 | 2013-02-20 | Procédé destiné à générer un élément en tôle |
Country Status (1)
| Country | Link |
|---|---|
| EP (1) | EP2769780B1 (fr) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3938963A (en) * | 1973-10-01 | 1976-02-17 | Hale Jesse R | Sandwich core panel having cured face sheets and a core formed with projecting modes |
| US4077247A (en) * | 1975-09-30 | 1978-03-07 | United Technologies Corporation | Method and apparatus for improving the formability of sheet metal |
| US4562718A (en) * | 1983-03-11 | 1986-01-07 | Precision Tool & Gauge Pty. Ltd. | Pallet and method of production |
| EP0677448A2 (fr) * | 1994-04-12 | 1995-10-18 | GOLDAU, Ursula | Palette en tôle métallique |
| US20050262918A1 (en) * | 2004-05-31 | 2005-12-01 | Denso Corporation | Method and apparatus for pressing sheet material |
| WO2008077394A2 (fr) * | 2006-12-22 | 2008-07-03 | Dr. Mirtsch Gmbh | Bande de matériau structurée à structuration multidimensionnelle et procédé de production correspondant |
-
2013
- 2013-02-20 EP EP13000852.7A patent/EP2769780B1/fr active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3938963A (en) * | 1973-10-01 | 1976-02-17 | Hale Jesse R | Sandwich core panel having cured face sheets and a core formed with projecting modes |
| US4077247A (en) * | 1975-09-30 | 1978-03-07 | United Technologies Corporation | Method and apparatus for improving the formability of sheet metal |
| US4562718A (en) * | 1983-03-11 | 1986-01-07 | Precision Tool & Gauge Pty. Ltd. | Pallet and method of production |
| EP0677448A2 (fr) * | 1994-04-12 | 1995-10-18 | GOLDAU, Ursula | Palette en tôle métallique |
| US20050262918A1 (en) * | 2004-05-31 | 2005-12-01 | Denso Corporation | Method and apparatus for pressing sheet material |
| WO2008077394A2 (fr) * | 2006-12-22 | 2008-07-03 | Dr. Mirtsch Gmbh | Bande de matériau structurée à structuration multidimensionnelle et procédé de production correspondant |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2769780B1 (fr) | 2020-11-18 |
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