Global Patent Index - EP 0270769 B1

EP 0270769 B1 19900411 - METHOD FOR GRINDING PLANE-PARALLEL ANNULAR SURFACES OF DISK-SHAPED WORKPIECES

Title (en)

METHOD FOR GRINDING PLANE-PARALLEL ANNULAR SURFACES OF DISK-SHAPED WORKPIECES

Publication

EP 0270769 B1 19900411 (DE)

Application

EP 87114773 A 19871009

Priority

DE 3642304 A 19861211

Abstract (en)

[origin: US4827677A] A method is described for grinding plane-parallel circular annular faces on disk-shaped workpieces, in particular on brake disks of motor vehicle disk brakes, in which the workpieces have different grinding allowances, with respect to their set-point position, on their surfaces to be machined and are machined from both sides with side grinding wheels by the face grinding process, and in which the machining is effected in a plurality of phases at dissimilar feed speeds. The machining is effected in one method step at dissimilar feed speeds (v3, v3'), from the point (P2, P2'), of the first contact of the grinding wheel with the workpiece up to a point (P3) on which on both sides of the workpiece, the same remaining grinding allowance (s0) with respect to the set-point location of the faces to be machined, exists. The dissimilar feed speeds (v3; v3') are matched to one another such that the point (P3) at which the same remaining grinding allowance (s0) exists on both sides is reached from both sides at the same instant (t3).

IPC 1-7

B24B 1/00; B24B 7/17

IPC 8 full level

B24B 7/17 (2006.01)

CPC (source: EP US)

B24B 7/17 (2013.01 - EP US); Y10S 451/902 (2013.01 - EP US)

Designated contracting state (EPC)

FR GB IT

DOCDB simple family (publication)

DE 3642304 C1 19880121; EP 0270769 A1 19880615; EP 0270769 B1 19900411; US 4827677 A 19890509

DOCDB simple family (application)

DE 3642304 A 19861211; EP 87114773 A 19871009; US 13156587 A 19871211