Reliable Welding of HSLA Steels by Square Wave Pulsing Using an Advanced Sensing (EDAP) Technique.
Abstract
A four part program was undertaken for the purposes of improving the reliability and predictability of welding. This was a Phase I SBIR research effort, funded by ONR, to demonstrate feasability of these proposed concepts: 1) Control automatically, in real time, weld nugget size and penetration. 2) Explore the use of square wave pulse welding for HSLA steels. 3) Develop a data base for pulsed GTA welding of A710 steel. 4) Determine the value of using an advanced video system for welding research. Most of this work was to proceed concurrently and simultaneously. However, difficulties encountered when making single pass, full penetration welds on A710 steels led to the completing of some of the research separately. The major concepts of weld control and pulse welding were both completed with very successful results.
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 30, 1986
- Accession Number
- ADA168762
Entities
People
- C. Connelly
- G. F. Fetzer
- R. G. Gann
- T. E. Aurand