Cutting bit body and method for making the same

Details Cutting bit body and method for making the same Cutting bit body and method for making the same

2006-08-21

2009-11-03

Kreck, John (Department: 3672)

Mining or in situ disintegration of hard material

Cutter tooth or tooth head

Rolling or rotatable bit

C299S113000

Reexamination Certificate

active

07611210

ABSTRACT:
A cutting bit body that is a part of a cutting bit that includes a hard insert that is affixed to the cutting bit body and wherein the cutting bit impinges earth strata. The cutting bit body is an elongate powder metallurgical body member. A method for making a powder metallurgical cutting bit body that includes the steps of: providing a powder mixture; pressing the powder mixture into a green cutting bit body compact having a partial density; and consolidating the green body to form the powder metallurgical cutting bit body.

REFERENCES:
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MPIF Standard 35 “Iron-Nickel and Nickel Steel”, P/M Structual Material Section 2003 (p. 14).
MPIF Standard 35 “Low Alloy Steel”, P/M Structual Material Section 2003 (p. 16).
MPIF Standard 35 “Sinter Hardened Steel”, P/M Structual Material Section 2003 (p. 18).
MPIF Standard 35 “Diffusion Alloyed Steel”, P/M Structual Material Section 2003 (p. 20).
MPIF Standard 35 “Copper Infiltrated Iron and Steel”, P/M Structual Material Section 2003 (p. 22).
MPIF Standard 35 “Stainless Steel—300 Series Alloy”, P/M Structual Material Section 2003 (p. 24).
MPIF Standard 35 “Stainless Steel—400 Series Alloy”, P/M Structual Material Section 2003 (p. 26).

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