Practical Considerations for Welding Aluminium - Flipbook - Page 19
Avoiding Faults/Defects
▪ Oxide inclusions
▪ Insufficient pre-weld cleaning
▪ Insufficient inter-run cleaning
▪ Dense metal inclusions
▪ Tungsten – TIG electrode
▪ Stainless steel – backing bars
▪ Copper – backing bars or contact tip melt
▪ Strands from stainless steel wire brushing
▪ Cross contamination from tools used on other materials
▪ Employee training
Air Products Internal Use Only
