EP 2865490 B1 20190925 - SUPERFINISHING WHETSTONE, SUPERFINISHING METHOD USING SAME
Title (en)
SUPERFINISHING WHETSTONE, SUPERFINISHING METHOD USING SAME
Title (de)
SCHLEIFSTEIN FÜR FEINSTBEARBEITUNG, FEINSTBEARBEITUNGSVERFAHREN DAMIT
Title (fr)
PIERRE À AIGUISER DE SUPERFINITION, PROCÉDÉ DE SUPERFINITION QUI UTILISE CETTE DERNIÈRE
Publication
Application
Priority
- JP 2012139976 A 20120621
- JP 2012071888 W 20120829
Abstract (en)
[origin: EP2865490A1] A whetstone (10) is provided with a first slope (12a) and a second slope (12b) at the head (11) thereof. When viewed in the thicknesswise direction, these slopes (12a, 12b) extend from the center of the whetstone toward the both sides thereof at an inclination angle of 3 to 5° to the crosswise (widthwise) direction, and meet in a nearly V-shaped state. The first and second slopes (12a, 12b) have an arc-shaped contour as viewed in the crosswise direction. The whetstone (10) is obtained by binding composite abrasive grains with a vitrified bond, said composite abrasive grains comprising: soft abrasive grains which are chemically reactive with a material to be cut and which do not cut the material; and hard abrasive grains which can cut the material.
IPC 8 full level
B24D 3/00 (2006.01); B24B 19/06 (2006.01); B24B 33/02 (2006.01); B24B 33/05 (2006.01); B24B 33/08 (2006.01)
CPC (source: EP)
B24B 19/06 (2013.01); B24D 3/14 (2013.01)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
EP 2865490 A1 20150429; EP 2865490 A4 20150429; EP 2865490 B1 20190925; CN 103648719 A 20140319; CN 103648719 B 20160302; JP 2014004636 A 20140116; JP 5961457 B2 20160802; WO 2013190713 A1 20131227
DOCDB simple family (application)
EP 12879575 A 20120829; CN 201280001459 A 20120829; JP 2012071888 W 20120829; JP 2012139976 A 20120621