| 摘要 |
PROBLEM TO BE SOLVED: To reduce manufacture processes by pressing a low carbon steel plate to form a receiving part, welding projectingly the base of a shaft member in the center of the receiving part, and manufacturing an outer housing joint member. SOLUTION: A recessed receiving part 20 for receiving an inner joint member is formed by press forming. A shaft part 30 is welded with the receiving part 20 at a weld zone 40. The surface treatments such as carbonitriding/nitriding hardening and others are performed. High strength can be given without damaging luminance. Grinding is performed, as an outer housing joint member 10 is attained. Since the stock of the receiving part 20 is a low carbon plate, it can be formed by cold working. By standardizing the receiving parts 20 by size, and by combining selected dedicated parts according to the use of the shaft member 30, they can cope with a valiety of uses. Thus, press are standardized, and also their lives are extended. |
