Drill blanks

Details Drill blanks Drill blanks

1986-11-04

1988-02-16

Parker, Roscoe V.

Metal tools and implements, making

Blank or process

Drill

76DIG12, B21K 502

Patent

active

047247282

ABSTRACT:
A method is provided of making a drill blank comprising a cylindrical carbide body 24 having a vein 26 of an abrasive compact embedded in one end thereof and bonded to the carbide. A method involves the steps of providing a solid, cylindrical body 10 of cemented carbide, forming a series of grooves 12 in one end surface 14 thereof, placing compact forming material in the grooves, exposing the cylindrical body to temperature and pressure conditions suitable to produce an abrasive compact of the material in the grooves, and severing the cylindrical body from one end surface 14 to the opposite end surface 20 to produce a plurality of the drill blanks.

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