Sintered body for high-hardness tools

Details Sintered body for high-hardness tools Sintered body for high-hardness tools

1995-09-18

1997-01-21

Mai, Ngoclan

Specialized metallurgical processes, compositions for use therei

Compositions

Consolidated metal powder compositions

75244, C22C 2904

Patent

active

055961568

ABSTRACT:
The invention provides a sintered body for high-hardness tools which, when used for cutting work of cast irons where the cutting edge undergoes high temperature and abrupt impact, holds high chip-off and abrasion resistances and exhibits good cutting performance. The sintered body for high-hardness tools is obtained by sintering 60 to 75% by volume of cubic boron nitride powder and remaining part of a binder powder under a superhigh pressure, the binder comprising 5 to 15% by weight of Al, and the remaining part comprising a compound represented by (Hf.sub.X Ti.sub.y M.sub.1-x-y)(C.sub.Z N.sub.1-z).sub..alpha. (where M denotes an element belonging to IVa, Va or VIa group in the periodic table except Ti and Hf, and where 0.1.ltoreq.x.ltoreq.0.5, 0.5.ltoreq.y.ltoreq.0.9, 0.7.ltoreq.z.ltoreq.0.9, and 0.6.ltoreq..alpha..ltoreq.0.8) or a mixture of a plurality of compounds that totally results in the aforementioned composition.

REFERENCES:
patent: 4343651 (1982-08-01), Yazu et al.
patent: 4693746 (1987-09-01), Nakai et al.
patent: 4911756 (1990-03-01), Nakai et al.
patent: 5034053 (1991-07-01), Nakai et al.
patent: 5041399 (1991-08-01), Fukaya et al.
patent: 5092920 (1992-03-01), Nakai et al.

Affiliated with

Also associated with

Rating

Sintered body for high-hardness tools does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Sintered body for high-hardness tools, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Sintered body for high-hardness tools will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2325690