公开(公告)号：US4666349A

公开(公告)日：1987-05-19

申请号：US892136

申请日：1986-07-30

Applicant: Werner Altmeyer ,  Ewald Jakobs ,  Berthold Scheer

Inventor： Werner Altmeyer ,  Ewald Jakobs ,  Berthold Scheer

IPC: B23B27/14 ,  B23B27/18

CPC classification number: B23B27/18 ,  B23B27/148 ,  Y10S76/10 ,  Y10T407/26

Abstract: A material removing tool wherein a substantially plate-like support of steel carries at least one annular cutter which is made of a harder metallic material capable of being soldered to the material of the support. The support has a centrally extending projection which is received in a complementary opening of the cutter, and the cutter has two or more substantially radially extending webs in register with grooves which weaken the cutter in the regions of the webs so that at least one of the webs breaks in response to soldering of the cutter to the support. The breaking of one or more webs is promoted by proper selection of the thermal expansion coefficients of the materials of the support and cutter. The provision of breaks in the webs, either as a result of bonding or as a result of utilization of cutter sections, ensures that each cutter section between two neighboring webs can be put to use independently of the condition of the other section or sections.

Abstract translation: 一种材料去除工具，其中基本上为板状的钢支撑件承载至少一个环形切割器，该切割器由能够被焊接到支撑体的材料的较硬的金属材料制成。 支撑件具有中心延伸的突起，该突起被容纳在切割器的互补的开口中，并且切割器具有两个或更多个基本上径向延伸的腹板，该腹板与凹槽对准，从而削弱腹板区域中的切割器，使得至少一个 响应于切割器对支撑件的焊接而产生断裂。 通过适当选择支撑和切割器的材料的热膨胀系数来促进一个或多个腹板的断裂。 由于粘合或由于切割部分的利用而使得腹板中的断裂的提供确保了两个相邻腹板之间的每个切割部分可以独立于其它部分的状态而被使用。