Plastic article or earthenware shaping or treating: apparatus – Means for molding powdered metal
Reexamination Certificate
2009-06-23
2010-06-08
Crispino, Richard (Department: 1791)
Plastic article or earthenware shaping or treating: apparatus
Means for molding powdered metal
C425S330000, C425S352000, C425S443000, C419S066000
Reexamination Certificate
active
07731488
ABSTRACT:
A method for manufacturing a cutting insert green body having undercuts includes providing a die cavity formed in closed top and bottom dies; closing a bottom of the die cavity by a bottom punch accommodated in a punch tunnel formed in the bottom die; filling the die cavity with a pre-determined amount of sinterable powder; moving a top punch towards the die cavity through a punch tunnel formed in the top die; compacting the powder by urging the top and bottom punches towards each other, thereby forming the green body; and moving the top die and punch away from the bottom die and punch, thereby enabling removal of the formed green body. An apparatus for manufacturing a cutting insert green body having undercuts includes top and bottom dies which abut each other and top and bottom punches which slide in their respective dies.
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International Search Report in PCT/IL2006/000036, dated May 29, 2006.
Atar Osama
Ballas Assaf
Dakwar Basem
Smilovici Carol
Crispino Richard
Iscar Ltd.
Nguyen Thu Khanh T
Womble Carlyle
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