Title:
METHOD FOR GRINDING COMPLEX SHAPES
Document Type and Number:
WIPO Patent Application WO2008036132
Kind Code:
A9
Abstract:
A method of producing a complex shape in a workpiece includes the steps of: i) grinding a workpiece at a maximum specific cutting energy of about 10 Hp/in3-min with at least one bonded abrasive tool, thereby forming a slot in the workpiece; and ii) grinding the slot with at least one mounted point tool, thereby producing the complex shape in the slot. The bonded abrasive tool includes at least about 3 volume % of a filamentary sol-gel alpha-alumina abrasive grain having an average length-to-cross-sectional-width ratio of greater than about 4: 1 or an agglomerate thereof. A method of producing a slot in a metallic workpiece having a maximum hardness value of equal to, or less than, about 65 Rc includes the step of grinding the workpiece with a bonded abrasive tool at a material removal rate in a range of between about 0.25 in3 /min in and about 60 in3 /min in and at a maximum specific cutting energy of about 10 Hp/in3 -min.
Inventors:
SUBRAMANIAN KRISHNAMOORTHY (US)
WEBSTER JOHN A (US)
CAPUTA PETER (US)
WEBSTER JOHN A (US)
CAPUTA PETER (US)
Application Number:
PCT/US2007/012324
Publication Date:
June 12, 2008
Filing Date:
May 23, 2007
Export Citation:
Assignee:
SAINT GOBAIN ABRASIVES INC (US)
SAINT GOBAIN ABRASIFS TECH (FR)
SUBRAMANIAN KRISHNAMOORTHY (US)
WEBSTER JOHN A (US)
CAPUTA PETER (US)
SAINT GOBAIN ABRASIFS TECH (FR)
SUBRAMANIAN KRISHNAMOORTHY (US)
WEBSTER JOHN A (US)
CAPUTA PETER (US)
International Classes:
B24B1/00; B24B19/02; B24D3/18
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