EP 0903200 A1 19990324 - Improved grinding process
Title (en)
Improved grinding process
Title (de)
Verbessertes Schleifverfahren
Title (fr)
Procédé de meulage amélioré
Publication
Application
Priority
GB 9719969 A 19970920
Abstract (en)
A grinding machine, particularly for grinding the crankpins (12) of a crankshaft, comprising a CBN grinding wheel (10) and a coolant nozzle (14) supplying a jet of coolant into the region being ground. During the final stage of grinding, when the slow feed of the wheel ceases and the dwell point is reached, a selector valve (18) is operated which reduces the coolant flow. This in turn reduces the lateral force on the crankpin and improves the roundness accuracy of the ground crankpin. <IMAGE>
IPC 1-7
IPC 8 full level
B24B 5/42 (2006.01); B24B 55/02 (2006.01); B24B 57/02 (2006.01)
CPC (source: EP)
B24B 5/42 (2013.01); B24B 55/02 (2013.01); B24B 57/02 (2013.01)
Citation (search report)
- [PX] WO 9809772 A1 19980312 - WESTERN ATLAS INT INC [US]
- [XY] US 4561218 A 19851231 - DZEWALTOWSKI VICTOR F [US], et al
- [Y] DE 4133754 A1 19920416 - MITSUBISHI HEAVY IND LTD [JP]
Designated contracting state (EPC)
DE ES FR IT
DOCDB simple family (publication)
EP 0903200 A1 19990324; EP 0903200 B1 20040421; DE 69823293 D1 20040527; DE 69823293 T2 20050504; ES 2219847 T3 20041201; GB 2329350 A 19990324; GB 2329350 B 20020911; GB 9719969 D0 19971119; GB 9819802 D0 19981104
DOCDB simple family (application)
EP 98307403 A 19980914; DE 69823293 T 19980914; ES 98307403 T 19980914; GB 9719969 A 19970920; GB 9819802 A 19980914