Patent ID: 6098871
Filing Date: 2000-08-08
Classification: B23K

Abstract:
A process for joining two metallic materials together comprising the steps of:providing two parent metal members to be joined and a prealloyed interlayer foil having a composition which includes a melting point depressant;creating a joint interface by positioning said interlayer foil between two spaced apart surfaces of said two parent metal members to be joined together;applying a load substantially transverse to said joint interface so as not to cause deformation of said surfaces; andcreating a creep resistant, damage tolerant material at rim portions of the parent metal members by applying localized, rapid heating in the area of said joint interface for a time of 1 to 2 hours at a temperature which effects bonding of said two parent metal members while causing a coarsening of grains in rim portions of said metal members so as to form creep resistant rim portions.