MANUFACTURE OF PRODUCT, WHICH HAS AT LEAST TWO MOVABLE PART WHICH IS NOT SEPARATED MUTUALLY, PARTICULARLY, ROLLER BEARING

摘要

Welding of two bearing race-ring parts by electron beam has revealed the disadvantage that the seam becomes hard and brittle which can introduce cracks or the like defects. This disadvantage is obviated by the claimed process according to which the region (7, 7 min ) bordering upon the seam (4) of the bearing ring parts (2, 2 min ) are shielded during the surface hardening process. The shielding of these region (7, 7 min ) is effected by applying on them a coating of copper or by an immersion process.