EP3455006A1 - Verfahren zur herstellung eines bauteils - Google Patents
Verfahren zur herstellung eines bauteilsInfo
- Publication number
- EP3455006A1 EP3455006A1 EP17720460.9A EP17720460A EP3455006A1 EP 3455006 A1 EP3455006 A1 EP 3455006A1 EP 17720460 A EP17720460 A EP 17720460A EP 3455006 A1 EP3455006 A1 EP 3455006A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- forming
- component
- blank
- semi
- tool
- 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
Links
- 238000000034 method Methods 0.000 title claims abstract description 23
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 10
- 239000011265 semifinished product Substances 0.000 claims abstract description 20
- 238000010438 heat treatment Methods 0.000 claims abstract description 14
- 229910000838 Al alloy Inorganic materials 0.000 claims abstract description 5
- 238000001816 cooling Methods 0.000 claims abstract description 4
- 238000009966 trimming Methods 0.000 claims description 6
- 238000007493 shaping process Methods 0.000 abstract 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 19
- 229910052782 aluminium Inorganic materials 0.000 description 19
- 239000000463 material Substances 0.000 description 7
- 229910045601 alloy Inorganic materials 0.000 description 4
- 239000000956 alloy Substances 0.000 description 4
- 230000032683 aging Effects 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 230000009466 transformation Effects 0.000 description 3
- 238000010791 quenching Methods 0.000 description 2
- 230000000171 quenching effect Effects 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- 239000007795 chemical reaction product Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000007779 soft material Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000005496 tempering Methods 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
- 238000003878 thermal aging Methods 0.000 description 1
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
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/02—Stamping using rigid devices or tools
- B21D22/022—Stamping using rigid devices or tools by heating the blank or stamping associated with heat treatment
-
- 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
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/20—Deep-drawing
- B21D22/208—Deep-drawing by heating the blank or deep-drawing associated with heat treatment
-
- 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
- B21D35/00—Combined processes according to or processes combined with methods covered by groups B21D1/00 - B21D31/00
- B21D35/002—Processes combined with methods covered by groups B21D1/00 - B21D31/00
- B21D35/005—Processes combined with methods covered by groups B21D1/00 - B21D31/00 characterized by the material of the blank or the workpiece
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
- C22F1/05—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon of alloys of the Al-Si-Mg type, i.e. containing silicon and magnesium in approximately equal proportions
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
- C22F1/053—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon of alloys with zinc as the next major constituent
Definitions
- the present invention relates to a method for producing a component made of a hardenable aluminum alloy according to the preamble of independent claim 1.
- Aluminum sheet in the cold tool results in a very soft state of the formed sheet, similar to that of the W-temper condition.
- the W-Temper process makes increased demands on the process control of the plant technology, because the components have to be reshaped in a tight temporal process window after the heat treatment.
- the achievable degrees of deformation compared to hot forming are relatively low.
- Aluminum sheet heat aging the partially formed aluminum sheet, and then finish forming the partially formed aluminum sheet at room temperature into a final shape of the aluminum molded piece.
- the aluminum plate is quenched after heating, provided with a lubricant and cold formed in a forming tool.
- the invention proposes a method for producing a component made of a hardenable aluminum alloy. curable
- Aluminum alloys within the meaning of the invention are so-called 7000er Alloys or 6000 alloys as well as all other alloys that can achieve high strength values by curing.
- a blank is heated to a predetermined temperature.
- a blank for example, aluminum boards are to be understood, which were previously deflected by an aluminum coil.
- blanks can also be boards with a predetermined shape, which are adapted to the final shape of the finished component to be achieved.
- the blank is heated to a predetermined temperature in the range of 450 to 550 ° C, especially 500 ° C.
- the heated blank is formed in a cold tool, wherein the blank is cooled simultaneously during the forming of the semifinished product.
- the heated blank is first cooled and then formed in the forming tool.
- cooling or quenching to ambient temperature takes place.
- the ambient temperature is in a range of 5 to 50 ° C.
- the semi-finished product is in a so-called W state. In this state, the blank has a soft material texture.
- the core of the invention is the recognition that in this state, an immediate transformation in the cold state can follow, without the component solution must be annealed.
- a semi-finished product is a two-dimensional or three-dimensionally shaped molded part.
- a component is also a two-dimensionally or three-dimensionally curved molded part, whose geometric shape and contour in the
- a minor processing or no machining is necessary to achieve the final shape of the component.
- post-processing holes introduced, applied coatings or minor trimmings are made on the component.
- the heated blank can be preformed in a Vorumform suits to the semifinished product and the cooled and preformed semi-finished in a second, near-net shape forming step to be final molded into a component.
- a pre-forming in the heated state very large degrees of deformation can be realized without causing solidification in the material.
- near-net shape forming only minor shape adjustments are realized in which the risk of solidification in the material of the component is relatively low.
- W-state is defined in EN-515: 2000 as a state immediately after solution heat treatment and quenching and represents an unstable state, since the elongation at break / formability decreases by storage at room temperature.
- the cooled blank may be in a W state prior to forming in the second forming tool.
- the component can be hardened by a heat treatment.
- a heat treatment can take place, for example, in the form of thermal aging.
- the component is at a temperature in the range of 80 to 250 ° C, preferably but 200 ° C, heated and kept at this temperature for two hours.
- the component is converted into a so-called T6 or a so-called T7 state. States T6 and T7 are also defined in EN-515: 2000.
- the blank or the preformed semifinished product can be trimmed near net shape. This offers the advantage that the trimming takes place in a relatively soft state. Compared to a trimming of the finished, d. H. hardened component, there is an advantage in that the wear on the trimming tools can be significantly reduced.
- FIG. 1 shows the method step of heating
- FIG. 2 shows the method step of the first forming
- FIG. 3 shows the preformed semi-finished product
- FIG. 4 shows the method step of the second forming
- FIG. 5 shows the method step of component hardening.
- a preformed board 10 is heated by means of a heater 40 to a predetermined temperature in the range of about 500 ° C +/- 10%.
- the heated blank 10 is introduced into a first forming tool 20, which comprises an upper mold half 21 and a lower mold half 22.
- the two tool halves 21, 22 are close to each other and open to move away from each other.
- the heated blank 10 is formed into a semi-finished 1 1.
- large degrees of deformation are achieved, so that the Hauptumformarbeit, which is necessary for the transformation of the blank 10 to the finished component 12, already performed in the first forming step in the tool 20.
- the formed semi-finished product 1 1 can be quenched at the same time as the forming in the forming tool 20.
- the formed semi-finished product 1 1 As soon as the formed semi-finished product 1 1 has cooled, it is introduced into a second forming tool 30. This includes analogous to the first
- Tool 20 also an upper mold half 31 and a lower mold half 32, which are movable toward and away from each other. By closing the tool halves 31 and 32, the preformed semi-finished product 1 1 is brought to the final contour of the finished component 12. As can be seen from FIG. 4, only minor degrees of deformation are achieved in this case. The formed on final contour component 12 and the only
- Endkonturnah shaped component 12 is removed from the second forming tool 30 and cured by means of a heat treatment.
- This heat treatment is shown in Figure 5, in which by means of a second heater 50, the component 12 to a predetermined temperature z. B. in the range of 180 ° C to 250 ° C is heated. After the component has a predetermined time, z. B. 2h, was exposed to this temperature, the finished component has predetermined strength properties.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
- Forging (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102016208014.8A DE102016208014A1 (de) | 2016-05-10 | 2016-05-10 | Verfahren zur Herstellung eines Bauteils |
PCT/EP2017/060007 WO2017194313A1 (de) | 2016-05-10 | 2017-04-27 | Verfahren zur herstellung eines bauteils |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3455006A1 true EP3455006A1 (de) | 2019-03-20 |
EP3455006B1 EP3455006B1 (de) | 2023-09-06 |
Family
ID=58645062
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP17720460.9A Active EP3455006B1 (de) | 2016-05-10 | 2017-04-27 | Verfahren zur herstellung eines bauteils |
Country Status (5)
Country | Link |
---|---|
US (1) | US20190070652A1 (de) |
EP (1) | EP3455006B1 (de) |
CN (1) | CN108602104B (de) |
DE (1) | DE102016208014A1 (de) |
WO (1) | WO2017194313A1 (de) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102018104326B3 (de) | 2018-02-26 | 2018-12-27 | Benteler Automobiltechnik Gmbh | Verfahren zur Herstellung eines Leichtmetallumformbauteils |
JP6987692B2 (ja) * | 2018-04-27 | 2022-01-05 | 株式会社ジーテクト | アルミニウム合金の成形方法 |
GB2590052B (en) * | 2019-09-25 | 2021-12-08 | Imp College Innovations Ltd | Aluminium forming method |
CN111496050B (zh) * | 2020-04-09 | 2022-03-25 | 武汉理工大学 | 铝合金板材冷热复合冲压成形装置及其冲压方法 |
EP3896188A1 (de) * | 2020-04-15 | 2021-10-20 | Politechnika Wroclawska | Verfahren zur herstellung von energieabsorbierenden elementen aus altershärtbaren aluminiumlegierungsblechen, die eine weitere verbindung ermöglichen |
CN112775310B (zh) * | 2020-12-23 | 2021-11-09 | 上海交通大学 | 铝合金薄壁构件及其高效热冲压成形方法和应用 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3850763A (en) * | 1973-11-14 | 1974-11-26 | Reynolds Metals Co | Method of producing a vehicle bumper |
DE102008032911B4 (de) | 2008-07-12 | 2017-05-11 | Daimler Ag | Verfahren zur Herstellung eines Formteils |
GB0817169D0 (en) * | 2008-09-19 | 2008-10-29 | Univ Birmingham | Improved process for forming aluminium alloy sheet components |
DE102009031449A1 (de) * | 2009-07-01 | 2010-03-25 | Daimler Ag | Verfahren zum Herstellen eines Aluminiumformteils |
DE102011014052A1 (de) * | 2011-03-16 | 2011-12-15 | Daimler Ag | Verfahren zum Herstellen eines Außenhautteils |
DE102012007213A1 (de) | 2012-04-11 | 2012-11-29 | Daimler Ag | Verfahren zur Herstellung eines Aluminiumformteils |
-
2016
- 2016-05-10 DE DE102016208014.8A patent/DE102016208014A1/de active Pending
-
2017
- 2017-04-27 EP EP17720460.9A patent/EP3455006B1/de active Active
- 2017-04-27 CN CN201780008579.8A patent/CN108602104B/zh active Active
- 2017-04-27 WO PCT/EP2017/060007 patent/WO2017194313A1/de unknown
-
2018
- 2018-11-08 US US16/183,969 patent/US20190070652A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
WO2017194313A1 (de) | 2017-11-16 |
DE102016208014A1 (de) | 2017-11-16 |
CN108602104A (zh) | 2018-09-28 |
CN108602104B (zh) | 2019-11-19 |
US20190070652A1 (en) | 2019-03-07 |
EP3455006B1 (de) | 2023-09-06 |
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