FIXED CORE OF AC GENERATOR FOR VEHICLE AND MANUFACTURE OF STATOR CORE THEREOF

摘要

PROBLEM TO BE SOLVED: To make it difficult to generate the node of vibration in the radial direction to reduce the vibration mode. SOLUTION: This stator core 7 is formed with inclusion of a plurality of welding portions provided in the diagonal direction for the laminating direction of a metal thin plate 17a to the upper and lower end of an annular cylinder at the external circumference of the annular cylinder. This stator core 7 can be manufactured through the welding 72 at a plurality of positions in the diagonal direction for the laminating direction of metal thin film to the upper and lower end of the annular cylinder at the external circumference of the annular cylinder.