EP 0198860 B1 19890118 - METHOD AND MACHINE FOR FABRICATING ROTATION BODIES BY PLASTIC DEFORMATION
Title (en)
METHOD AND MACHINE FOR FABRICATING ROTATION BODIES BY PLASTIC DEFORMATION
Publication
Application
Priority
- AT 334584 A 19841019
- AT 334684 A 19841019
Abstract (en)
[origin: WO8602296A1] Method and machine for making rotational bodies by plastic deformation with a diameter varying lengthwise. Method wherein, upon rotating the blank, a local pressure is exerted with a progressive increase of force involved at start so as to reach a sufficient limit. For implementing such method, the blank is treated between two pressure areas which have an intersection by displacing the areas relatively between each other, while the blank is displaced in relation to the intersection point of the two areas and the variation of the diameter of the object to be manufactured.
IPC 1-7
IPC 8 full level
CPC (source: EP KR US)
Designated contracting state (EPC)
AT BE CH DE FR GB IT LI LU NL SE
DOCDB simple family (publication)
WO 8602296 A1 19860424; AT E108104 T1 19940715; AT E40059 T1 19890215; AU 4962585 A 19860502; AU 580347 B2 19890112; DE 3567592 D1 19890223; DE 3587876 D1 19940811; DK 289186 A 19860619; DK 289186 D0 19860619; EP 0198860 A1 19861029; EP 0198860 B1 19890118; KR 870700422 A 19871229; KR 930009935 B1 19931013; US 4817408 A 19890404
DOCDB simple family (application)
AT 8500041 W 19851015; AT 85905045 T 19851015; AT 88106349 T 19851015; AU 4962585 A 19851015; DE 3567592 T 19851015; DE 3587876 T 19851015; DK 289186 A 19860619; EP 85905045 A 19851015; KR 860700375 A 19860619; KR 867000375 A 19860619; US 17003988 A 19880311