公开(公告)号：US5712030A

公开(公告)日：1998-01-27

申请号：US563936

申请日：1995-11-29

申请人： Mitsuhiro Goto ,  Satoru Kukino ,  Kenichi Kikutani ,  Tetsuo Nakai

发明人： Mitsuhiro Goto ,  Satoru Kukino ,  Kenichi Kikutani ,  Tetsuo Nakai

IPC分类号： B22F7/06 ,  B23B27/14 ,  B23B27/20 ,  B23P15/30 ,  B23B27/16

CPC分类号： B23B27/145 ,  B23B2200/201 ,  B23B2200/242 ,  B23B2200/247 ,  B23B2222/14 ,  B23B2222/28 ,  B23B2226/125 ,  B23B2226/31 ,  Y10T407/27 ,  Y10T428/24975 ,  Y10T428/26 ,  Y10T428/30 ,  Y10T428/31678

摘要： A sintered body insert for cutting comprises an intermediate layer consisting of at least one of cemented carbide, a ferrous metal and a high melting point metal, and a first layer and a second layer, each consisting of hard sintered bodies containing cubic boron nitride or diamond, which are arranged on opposite sides respectively above and below with the intermediate layer therebetween. The first and second layers are bonded to the intermediate layer by sintering. The is so formed or configured that its front and rear surfaces define cutting faces. All noses and flanks involved in cutting are formed on the first layer and the second layer, while the centers of gravity of the cutting faces and of the overall insert are located at positions on or in the intermediate layer. Further, coating layers consisting of a nitride of an element belonging to the group 4a, 5a or 6a of the periodic table or other components are formed on the surfaces of the cutting faces and the flanks. With this structure, it is possible to provide a sintered body insert for cutting which is prolonged in life and excellent in economy such as the manufacturing cost.

摘要翻译： 用于切割的烧结体刀片包括由硬质合金，黑色金属和高熔点金属中的至少一种构成的中间层，以及第一层和第二层，每个由包含立方氮化硼或金刚石的硬质烧结体组成 它们分别布置在相应的上方和下方的相对侧上，其间具有中间层。 第一层和第二层通过烧结结合到中间层。 这样形成或构造成其前表面和后表面限定切割面。 涉及切割的所有鼻和侧面形成在第一层和第二层上，而切割面和整个插入物的重心位于中间层上或中间层的位置。 此外，在切割面和侧面的表面上形成由元素周期表的组4a，5a或6a的元素的氮化物或其它成分组成的涂层。 利用这种结构，可以提供一种寿命延长且经济性好，如制造成本的切割用烧结体用刀片。