EP 0183031 B1 19910724 - METHOD OF MAKING HOLES WITH HIGH-QUALITY SURFACE AND DEVICE FOR CARRYING OUT THE METHOD
Title (en)
METHOD OF MAKING HOLES WITH HIGH-QUALITY SURFACE AND DEVICE FOR CARRYING OUT THE METHOD
Publication
Application
Priority
DE 3443106 A 19841127
Abstract (en)
[origin: US4683680A] A method and apparatus for producing, in workpieces, bores having a high surface quality, and especially for producing cylinder bores in engine cylinder blocks. At least one fine surface machining is carried out with a rotating honing tool that executes a contrarotating stroke movement in the direction of the axis of a bore. The honing tool has honing stones that can be pressed radially against the wall of the bore via a feed system. The method and apparatus preclude damaging effects upon the surface quality of a bore as a result of the movement reversal of the honing tool. This is accomplished by reducing the force, with which the honing stones are pressed against the bore wall, during the reversal of the direction of the stroke movement of the honing tool. In particular, the pressure in the cylinder space of the piston/cylinder arrangement of the apparatus is reduced during reversals of the direction of the stroke movement of the honing tool.
IPC 1-7
IPC 8 full level
B24B 33/06 (2006.01); B24B 33/08 (2006.01)
CPC (source: EP US)
B24B 33/06 (2013.01 - EP US)
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
EP 0183031 A2 19860604; EP 0183031 A3 19871216; EP 0183031 B1 19910724; DE 3443106 A1 19860605; DE 3443106 C2 19920917; DE 3583584 D1 19910829; JP H0364271 B2 19911004; JP S61131864 A 19860619; US 4683680 A 19870804
DOCDB simple family (application)
EP 85113073 A 19851015; DE 3443106 A 19841127; DE 3583584 T 19851015; JP 26396585 A 19851126; US 80285785 A 19851127