Device and method for manufacturing end mill

Details Device and method for manufacturing end mill Device and method for manufacturing end mill

2011-07-05

2011-07-05

Theisen, Mary Lynn F (Department: 1743)

Plastic and nonmetallic article shaping or treating: processes

Forming articles by uniting randomly associated particles

Autogenously or by activation of dry coated particles

C264S109000, C264S125000, C419S038000, C419S066000, C425S078000, C425S346000, C425S352000

Reexamination Certificate

active

07972545

ABSTRACT:
A device and a method for manufacturing an end mill in which the amount of grinding of a blank end mill is small. The device for manufacturing an end mill includes: upper and lower punches; a die; a feed box for supplying a powder of material for the end mill; and a cleaner for eliminating the powder from a top surface of the die. The upper and lower punches are movable up and down relative to each other and have a lengthwise molding cavity formed thereon. The die has a penetrating slit sized to be approximated to the width of the upper and lower punches. The penetrating slit allows the up-and-down movements of the upper and lower punches. The feed box supplies the powder into a space formed by the wall of the penetrating slit and the lower punch.

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International Search Report in PCT/KR2007/002807, dated Mar. 6, 2008.
Written Opinion in PCT/KR2007/002807, dated Mar. 6, 2008.
Decision on Grant for Russian Application No. 2009149706, dated Mar. 24, 2011.

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