EP 0876859 A3 20001011 - Method and apparatus for making axle housings for motor vehicle
Title (en)
Method and apparatus for making axle housings for motor vehicle
Title (de)
Verfahren und Einrichtung zur Herstellung von Kraftfahrzeugachsgehäusen
Title (fr)
Procédé et appareil de fabrication de carters d'essieu pour véhicule automobile
Publication
Application
Priority
DE 19719629 A 19970509
Abstract (en)
[origin: EP0876859A2] The housing has a differential housing and axle halves, fabricated from a tubular hollow profile. High fluid pressure pushes the profile ends towards each other, and the profile is widened by an internal high pressure forming tool. The profile (1) is flattened on two opposite sections in the area of the differential housing. The flattened sections are given rigid support, and the housing is formed by expanding upsetting. A second hollow profile is separately formed into a conically bulging double part by expanding upsetting. This is cut centrally to form axle halves, which are connected to the differential housing.
IPC 1-7
IPC 8 full level
B21D 26/02 (2006.01); B21D 26/033 (2011.01); B21D 53/90 (2006.01)
CPC (source: EP)
B21D 26/033 (2013.01); B21D 53/90 (2013.01)
Citation (search report)
- [Y] US 1501023 A 19240708 - GOODSPEED ELVIN S
- [Y] US 5070717 A 19911210 - BOYD DAVID B [US], et al
- [A] DE 1908729 A1 19690918 - NAKAMURA MASANOBU
- [A] PATENT ABSTRACTS OF JAPAN vol. 005, no. 172 (M - 095) 31 October 1981 (1981-10-31)
- [A] TERUMORI UEDA: "differential gear casings for automobiles by liquid bulge forming processes", SHEET METAL INDUSTRIES, vol. 60, no. 4, April 1983 (1983-04-01), london, pages 220 - 224, XP002145142
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
EP 0876859 A2 19981111; EP 0876859 A3 20001011; DE 19719629 A1 19981119; DE 19719629 C2 20010906
DOCDB simple family (application)
EP 98107664 A 19980428; DE 19719629 A 19970509