Method for manufacturing a body belonging to a friction pairing and body belonging to a friction pairing.

摘要

Method for making a body belonging to a pairing of friction, for example a synchronizing ring (1, 19) or an intermediate ring, for a synchronized manual transmission or an automatic gearbox with a frictional surface (2, 20) serving to cooperate with a counter body and which is formed by the sum of the contact surfaces (8, 24) - acting on the counter body to produce a constant velocity motion thereof - of a large number of frictional bodies (3, 21) are separated from one another by grooves (4) extending at an angle to the rotation provided the body (1, 19), preparing in a first step a body (14) with frictional bodies (3, 21) prefabricated up near the end contour, characterized in that the groove walls (6, 7 ') limiting the contact surface (8, 14) of a friction body (3, 21) are configured discoursing parallel or near parallel to each other and that in a next step the friction surface (2, 20) formed by the sum of the contact surfaces (8, 24) of the frictional bodies (3, 21) is adjusted by a processing step that removes material from the frictional bodies (3, 21) prefabricated to near final contour, limiting the contact surfaces (8, 24) of the frictional bodies (3, 21), at the ends limited by grooves (4), with wall adjacent groove (6, 7 '), thus forming an edge (12, 13) with a maximum radius of 0.2 mm.