Patent ID: 6049060
Filing Date: 2000-04-11
Classification: B23K

Abstract:
A method of forming a weldment that terminates within the perimeter of an article, comprising the steps of:furnishing an article having a surface;positioning a weld lift-off block at a location on the surface of the article, the weld lift-off block having a wedge shape comprisinga base contacting the surface of the article, andan upper face angled upwardly from the base from a base leading edge;forming a weld pool on the surface of the article by directly heating the surface of the article using a heat source;moving the heat source relative to the surface of the article and onto the upper face of the weld lift-off block by crossing the base leading edge, without discontinuing the direct heating of the article by the heat source; anddiscontinuing the heating with the heat source only after the heat source is directly heating the upper face of the weld lift-off block, and not the article.