EP0089520A2 - Verfahren zum Herstellen von metallischen Felgen für Fahrzeugräder und danach hergestellte Produkte - Google Patents
Verfahren zum Herstellen von metallischen Felgen für Fahrzeugräder und danach hergestellte Produkte Download PDFInfo
- Publication number
- EP0089520A2 EP0089520A2 EP83102016A EP83102016A EP0089520A2 EP 0089520 A2 EP0089520 A2 EP 0089520A2 EP 83102016 A EP83102016 A EP 83102016A EP 83102016 A EP83102016 A EP 83102016A EP 0089520 A2 EP0089520 A2 EP 0089520A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- rims
- pipe
- vehicle wheels
- wheels
- alloy
- 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.)
- Withdrawn
Links
- 238000000034 method Methods 0.000 title claims description 19
- 238000004519 manufacturing process Methods 0.000 title claims description 9
- 229910052751 metal Inorganic materials 0.000 title abstract description 7
- 239000002184 metal Substances 0.000 title abstract description 7
- 229910000838 Al alloy Inorganic materials 0.000 claims abstract description 8
- 239000011159 matrix material Substances 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 7
- 229910045601 alloy Inorganic materials 0.000 claims description 4
- 239000000956 alloy Substances 0.000 claims description 4
- 239000007769 metal material Substances 0.000 claims description 3
- 229910018134 Al-Mg Inorganic materials 0.000 claims description 2
- 229910021365 Al-Mg-Si alloy Inorganic materials 0.000 claims description 2
- 229910018467 Al—Mg Inorganic materials 0.000 claims description 2
- 229910018571 Al—Zn—Mg Inorganic materials 0.000 claims description 2
- 229910018569 Al—Zn—Mg—Cu Inorganic materials 0.000 claims description 2
- 238000007493 shaping process Methods 0.000 claims 3
- 230000001747 exhibiting effect Effects 0.000 claims 1
- 238000003466 welding Methods 0.000 description 4
- 238000009966 trimming Methods 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000011265 semifinished product Substances 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 238000005482 strain hardening Methods 0.000 description 1
Images
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
- B21D26/00—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces
- B21D26/02—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure
- B21D26/033—Deforming tubular bodies
-
- 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
- B21D26/00—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces
- B21D26/02—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure
- B21D26/053—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure characterised by the material of the blanks
-
- 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
- B21D53/00—Making other particular articles
- B21D53/26—Making other particular articles wheels or the like
- B21D53/30—Making other particular articles wheels or the like wheel rims
Definitions
- This invention relates to a simplified process for manufacturing metal rims for vehicle wheels, in particular tire rims of aluminium alloy for wheels of motor vehicles, preferably weldless.
- the aluminium alloy tire rims for motor vehicle wheels are presently manufactured starting from a flat plate which is caused to assume the tire rim shape by means of the following operations :
- the resulting tire rim is ready for assembly by welding to the disc-wheel.
- metal tire rims preferably weldless, for vehicle wheels, particularly weldless tire rims of aluminium alloy for motor vehicle wheels.
- a hydroforming process which consists in imparting the desired shape to the wall of a metal pipe cut down size, preferably of the extruded type, by applicating to the inside of said pipe - previously inserted into a female die-matrix having inner walls profiled according to the shape to be imparted to the desired tire rim - a hydraulic pressure, by means of a press of conventional type, thus obtaining a rough profiled tire rim ready for the final finish (trimming by turning and the like).
- Particularly suited materials to be employed for the manufacturing of tire rims according to the process of the present invention are the aluminium alloys of the Al-Mg type of the known Series AA 5000, the Al-Mg-Si alloys of the known Series AA 6000, and the Al-Zn-Mg or Al-Zn-Mg-Cu alloys of the known Series AA 7000.
- the process forming the object of the present invention is particularly utilized for tire rims of wheels for motor vehicles; it is employable with technical-economical advantages also for manufacturing rims and tire rims for the most different types of vehicles, also in connection with the fact that the process itself can be practiced to obtain, instead of one rough rim only for each individual hydroforming operation, a plurality of rims (or tire rims), in this case starting from a pipe having a length proportioned to the desired number of rough rims to be obtained for every single forming operation, and utilizing, for said operation, a "multiple" die-matrix, i.e. having a plurality of "impressions", namely as are required to obtain the desired number of rims.
- Cut-trimming operations to be carried out after the above-described multiple hydroforming, permit to obtain the finished rims.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT20244/82A IT1150477B (it) | 1982-03-18 | 1982-03-18 | Procentimento per la fabbricazione di cerchi metallici per ruote di veicoli e prodotti cosi'ottenuti |
IT2024482 | 1982-03-18 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0089520A2 true EP0089520A2 (de) | 1983-09-28 |
EP0089520A3 EP0089520A3 (de) | 1984-03-21 |
Family
ID=11165089
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP83102016A Withdrawn EP0089520A3 (de) | 1982-03-18 | 1983-03-02 | Verfahren zum Herstellen von metallischen Felgen für Fahrzeugräder und danach hergestellte Produkte |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0089520A3 (de) |
IT (1) | IT1150477B (de) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4142325A1 (de) * | 1991-12-20 | 1993-06-24 | Bayerische Motoren Werke Ag | Verfahren zum herstellen von fahrwerkstraegern |
DE19727599A1 (de) * | 1997-06-28 | 1999-01-07 | Volkswagen Ag | Verfahren zur Herstellung von Metallrädern |
CN110834176A (zh) * | 2018-08-17 | 2020-02-25 | 浙江金固股份有限公司 | 轮辋的制造方法和车轮的制造方法 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2165985A1 (de) * | 1970-03-21 | 1972-10-26 | Dunlop Holdings Ltd., London | Radfelge. Ausscheidung aus: 2113693 |
DE2432300A1 (de) * | 1973-07-06 | 1975-01-23 | Dunlop Ltd | Verfahren zum pressverformen eines rohlings aus verformbarem material und formpresse |
DE2440725A1 (de) * | 1974-08-24 | 1976-03-11 | Berg Kg | Vorrichtung zum kaltformen von hohlkoerpern |
EP0002032A1 (de) * | 1977-11-17 | 1979-05-30 | Wilhelm Heinrich Schroth | Verfahren und Vorrichtung zum Herstellen mehrrilliger Keilriemenscheiben |
DE2844803A1 (de) * | 1978-10-11 | 1980-04-17 | Mannesmann Ag | Verfahren und vorrichtung zum herstellen von felgen oder radscheiben fuer fahrzeugraeder |
DE3107887A1 (de) * | 1981-03-02 | 1982-11-11 | Stahlschmidt & Maiworm GmbH & Co KG, 5980 Werdohl | Verfahren zur herstellung eines felgenringes aus leichtmetall |
-
1982
- 1982-03-18 IT IT20244/82A patent/IT1150477B/it active
-
1983
- 1983-03-02 EP EP83102016A patent/EP0089520A3/de not_active Withdrawn
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2165985A1 (de) * | 1970-03-21 | 1972-10-26 | Dunlop Holdings Ltd., London | Radfelge. Ausscheidung aus: 2113693 |
DE2432300A1 (de) * | 1973-07-06 | 1975-01-23 | Dunlop Ltd | Verfahren zum pressverformen eines rohlings aus verformbarem material und formpresse |
DE2440725A1 (de) * | 1974-08-24 | 1976-03-11 | Berg Kg | Vorrichtung zum kaltformen von hohlkoerpern |
EP0002032A1 (de) * | 1977-11-17 | 1979-05-30 | Wilhelm Heinrich Schroth | Verfahren und Vorrichtung zum Herstellen mehrrilliger Keilriemenscheiben |
DE2844803A1 (de) * | 1978-10-11 | 1980-04-17 | Mannesmann Ag | Verfahren und vorrichtung zum herstellen von felgen oder radscheiben fuer fahrzeugraeder |
DE3107887A1 (de) * | 1981-03-02 | 1982-11-11 | Stahlschmidt & Maiworm GmbH & Co KG, 5980 Werdohl | Verfahren zur herstellung eines felgenringes aus leichtmetall |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4142325A1 (de) * | 1991-12-20 | 1993-06-24 | Bayerische Motoren Werke Ag | Verfahren zum herstellen von fahrwerkstraegern |
EP0548859A1 (de) * | 1991-12-20 | 1993-06-30 | Bayerische Motoren Werke Aktiengesellschaft | Verfahren zum Herstellen von Fahrwerksträgern |
DE19727599A1 (de) * | 1997-06-28 | 1999-01-07 | Volkswagen Ag | Verfahren zur Herstellung von Metallrädern |
DE19727599B4 (de) * | 1997-06-28 | 2007-08-02 | Volkswagen Ag | Verfahren zur Herstellung von Metallrädern |
CN110834176A (zh) * | 2018-08-17 | 2020-02-25 | 浙江金固股份有限公司 | 轮辋的制造方法和车轮的制造方法 |
Also Published As
Publication number | Publication date |
---|---|
IT1150477B (it) | 1986-12-10 |
IT8220244A0 (it) | 1982-03-18 |
EP0089520A3 (de) | 1984-03-21 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Designated state(s): CH DE FR GB LI SE |
|
PUAL | Search report despatched |
Free format text: ORIGINAL CODE: 0009013 |
|
AK | Designated contracting states |
Designated state(s): CH DE FR GB LI SE |
|
17P | Request for examination filed |
Effective date: 19840727 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN |
|
18W | Application withdrawn |
Withdrawal date: 19860304 |
|
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: GRIMALDI, PIERO |