PROCESS FOR PRODUCTION OF AN OBJECT CONSISTING OF AT LEAST TWO PARTS MOVABLE RELATIVE TO EACH OTHER, ONE OF WHICH IS SUBSTANTIALLY ENCLOSED WITHIN THE OTHER, AND A DEVICE FOR PERFORMING THIS PROCESS

摘要

Two (or more) loose ring like elements (2, 19) e.g. inner race rings (2) of a rolling bearing (1), can be welded together while being pressed together and rotated by a suitable device inside a (ring like body or outer ring (4, 18) by an electron beam (16) admitted through a small opening (5, 21) in the outer ring (4, 18).