Abstract: An electric contact with a base metal used as a switch wherein the non-welded peripheral portion of the contact is prevented from bow-like bending and from peeling off. The electric contact with a base metal having a contact promoting shape is formed by die forging of a contact material joined to the base metal by resistance welding. The composite contact material is prepared by coating the core material of Ag-oxide contact material with non-oxide contact material. The side of the material in contact with the base metal is of non-oxide contact material. The contact material may be pressed to fill a groove preformed in the base metal, welded to protrusions preformed in the base metal, welded to the bottom of a cut preformed in the base metal, or welded to bottoms of recesses preformed in the base metal.

Abstract: The method of bonding silver-based contact is disclosed. A silver-based contact is brought into contact with a support, at least the surface of which is made of a cupreous material, with a pressure of less than 1 kgf/cm.sup.2 exerted therebetween. The contact and support are heated in a non-oxidizing atmosphere at a temperature of more than 700.degree. C.