公开(公告)号：US09394747B2

公开(公告)日：2016-07-19

申请号：US13917511

申请日：2013-06-13

Applicant: Varel International Ind., L.P.

Inventor： Federico Bellin ,  William W. King ,  James U. Nixon

IPC: E21B10/46 ,  E21B10/567 ,  E21B10/573 ,  B24D18/00 ,  B24D99/00 ,  C22C26/00

CPC classification number: E21B10/5735 ,  B24D18/00 ,  B24D99/005 ,  C22C26/00 ,  E21B10/567

Abstract: A thermally stable polycrystalline diamond cutter and method for fabricating the same. The cutter includes a substrate and a cutting table bonded thereto. The cutting table includes a cutting surface, a first beveled edge, a second beveled edge, a side surface, and an opposing surface that is adjacent to the substrate. The first beveled edge extends outwardly at a first angle from the cutting surface towards the substrate. The second beveled edge extends outwardly at a second angle from the first beveled edge towards the substrate. The side surface extends from the second beveled edge to the opposing surface. The cutting table is formed from a polycrystalline diamond structure having interstitial spaces disposed therebetween and a catalyst material disposed within the spaces in an untreated layer and not within a treated layer. The untreated layer includes the entire side surface.

Abstract translation: 一种热稳定型多晶金刚石刀具及其制造方法。 切割器包括基底和与其结合的切割台。 切割台包括切割表面，第一倾斜边缘，第二倾斜边缘，侧表面和与基底相邻的相对表面。 第一倾斜边缘以从切割表面朝向基底的第一角度向外延伸。 第二倾斜边缘以从第一倾斜边缘朝向基板的第二角度向外延伸。 侧表面从第二倾斜边缘延伸到相对的表面。 切割台由多晶金刚石结构形成，其间具有间隙空间，催化剂材料设置在未处理层的空间内，而不在处理层内。 未处理层包括整个侧表面。