END PIECE PRESSURE WELDING TYPE HOLLOW CAMSHAFT

摘要

PROBLEM TO BE SOLVED: To prevent the reduction of connecting strength between an end piece and a hollow shaft in an end piece pressure welding type hollow camshaft. SOLUTION: In the end piece pressure-welding type hollow camshaft pressure- welded with an end piece 1 at least at one end of the hollow shaft 2, an outer diameter of an end face 5 of a pressure-welding portion 3 of the end piece 1 kept in press-contact with the hollow shaft 2 is the same as an outer diameter of an end face 6 of the hollow shaft 2.