DRAWN ARC STUD WELDING SYSTEM

摘要

A system for drawn arc stud welding that includes a drawn arc stud welding device; a substrate; a stud for attachment to the substrate; a modified ferrule; and modified flux. The ferrule is placed around the stud in the welding device prior to attaching the stud to the substrate and further includes a ferrule body having inner and outer surfaces and top and bottom surfaces. The ferrule body has been modified to include tapered inner walls, smoothed inner surfaces, beveled inner surfaces, notched bottom surfaces, or combinations thereof. The flux has been bound to or integrated with the inner surfaces and bottom surfaces of the ferrule body and has been modified to have a particle size of less than about 1200 μm. The flux is placed outside of the arc path generated by the stud welding device.

主权项

1. A ferrule for use in drawn arc stud welding, comprising:
(a) a ferrule body having inner and outer surfaces and top and bottom surfaces; wherein the ferrule body has been modified to include tapered inner walls, smoothed inner surfaces, beveled inner surfaces, notched bottom surfaces, or combinations thereof; and (b) flux, wherein the flux has been bound to or integrated with the inner surfaces and bottom surfaces of the ferrule body, and wherein the flux has been modified to have a particle size of less than about 1200 μm.