POWDER METAL ULTRASONIC WELDING TOOL AND METHOD OF MANUFACTURE THEREOF

摘要

An ultrasonic welding tool fabricated of powder metal material includes a body and a welding tip extending axially from the body to a working end. The powder metal material can be ferrous-based and admixed with additives, such as alumina, carbide, ferro-molybdenum, ferro-nickel, chrome or tribaloy. An exposed surface of the welding tip can comprise Fe3O4 oxides. The tool is compacted to the desired shape and sintered. The body can include a different second material compacted separately from the welding tip and then joined to the tip and sintered.

主权项

1. A method of manufacturing an ultrasonic welding tool comprising a powder metal material including the steps of:
compacting a ferrous-based powder metal material to form a welding tip; sintering the powder metal material at about ambient pressure which is not under a vacuum; and forming Fe3O4 in the welding tip.