High Deposition Welding. Volume 2. Use of Powder Metal Filler Materials for High Deposition Rate One - Side Welding.

摘要

The use of powder metal filler materials to achieve higher deposition rates and the use of non-metallic backing materials for one-side welding have become viable production techniques. Various methods of application are being investigated to determine which processes are best suited to specific shipbuilding applications. The objective is to develop a machine capable of utilizing the process of automatically dispensing iron powder in a butt weld joint welded from one side with ceramic backing. The machine must be able to pass through a 10' x 4' opening. The objective was accomplished. A machine meeting the physical constraints was developed and demonstrated with both gasless flux core and submerged arc processes. Welds of acceptable appearance and quality have been produced under laboratory conditions and the machine is presently being field tested in a shipyard. This type of equipment offers proven cost savings and better reliability of machine welding in continued areas where conventional equipment will not work.