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Methods of preparing cemented carbide inserts for earth-boring bits 检索报告

2023-07-21 2490 192K 0

专利信息

申请日期 2025-07-10 申请号 EP10075341
公开(公告)号 EP2264201A3 公开(公告)日 2011-01-12
公开国别 EP 申请人省市代码 全国
申请人 TDY Industries Inc
简介 The invention relates to methods of preparing cutting inserts for earth-boring bits. In one embodiment the method comprises partially filling a mould with a first cemented hard particle powder, filling at least a portion of the remaining portion of the mould with a second cemented hard particle powder, consolidating the first and second cemented hard particle powders into a single green compact and sintering the single green compact. In a further embodiment the method comprises consolidating a first cemented carbide powder in a mould to provide a first green compact, placing the first green compact in a second mould, wherein the first green compact fills a portion of the second mould, filling at least a portion of a remaining portion of the second mould with a second cemented carbide powder, consolidating the second cemented carbide powder and the first green compact together to form a second green compact and sintering the second green compact.


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