PREPARATION AND PROCEDURE FOR THE CALCULATION OF NUTS IN THE USE OF A ROTATION CORPORE

摘要

PCT No. PCT/FR92/00452 Sec. 371 Date Jan. 21, 1993 Sec. 102(e) Date Jan. 21, 1993 PCT Filed May 21, 1992 PCT Pub. No. WO92/20474 PCT Pub. Date Nov. 26, 1992.The apparatus and process according to the invention relate to the cold forming by rolling of revolving parts (7). The apparatus comprises two identical milling wheels (9A, 9B) arranged symmetrically with respect to the part (7) to be formed and performing the same rotation movement at speed Vm and progressively moving towards the axis of the part to be formed (X1-X1). The part (7) performs a rotation movement at speed Vp such that Vp=VmxN1/N2, N1 being the number of grooves on each wheel (9A, 9B), N2 the number of grooves to be formed on the part (7). An initial setting makes it possible to bring about coincidence between the grooves formed by each of the milling wheels on the part (7). The apparatus and process make it possible to obtain high precision parts.