Patent ID: 6035744
Filing Date: 2000-03-14
Classification: B23B,B23P,Y10T

Abstract:
A process for the manufacture of a cutting insert for thread cutting, with several individual cutting teeth which are simultaneously engaged in incrementally cutting a thread profile, comprising;(i) pressing and sintering of a blank;(ii) finishing operations to finish the blank to specified dimensions, wherein the pressing and sintering of the blank includes the shape of the individual cutting teeth, includingrelief angles of at least 3.degree. for flanks, which approach each other conically, of side cutting edges of the individual cutting teeth;on a final tooth, which makes a finish cut on the thread, a profile depth which fits within the required final measurement tolerances;oversizing in a thickness of the cutting insert and in a tooth width of the individual cutting teeth; and wherein the finishing operations include mechanically processing a back face and/or a front face of the blank until the tooth width of the individual cutting teeth and the thickness of the cutting insert fit within the required final measurement tolerances.