Patent ID: 6276591
Filing Date: 2001-08-21
Classification: B23K,Y10T

Abstract:
A friction stir joining method whereinpreparing two hollow frame members in which between two sheet face plates is connected according to plural ribs, and an end portion of one of said two face plates is projected from an end portion of another of said two face plates;joining said projected face plates together with from a side of said another of said two face plates according to a friction stir joining;arranging a respective end portion of one connection member to a connection portion between said end portion of said another of said two face plates of said one of said two hollow frame members and a connection portion between said end portion of said another of said two face plates of said another of said two hollow frame members and said ribs; andcarrying out the friction stir joining to an abutted portion between said one of said two hollow frame members and one end of said connection member, and carrying out an overlapping portion between said another of said two hollow frame members and another end of said connection member according to the friction stir joining from an outer side of said two hollow frame members.