Patent ID: 6422449
Filing Date: 2002-07-23
Classification: B23K,Y10T

Abstract:
A method of mending a friction stir welding portion of two members, each having an aluminum alloy as a base material and each having a raised portion in an end portion to be welded, comprising the steps of:abutting said two members having said raised portions in said end portions to be welded; carrying out the friction stir welding from said raised portions of said two members; forming a mending zone by removing a defect, which is included in a welding bead, using a grinding processing; forming a mending bead in said formed mending zone using tungsten inert gas welding with a welding rod which is made of the same material as said base material; removing and cutting off said mending bead and said raised portions of said two members, to provide a cut-off face; and performing a hairline processing to surfaces of said two members including said cut-off face.