When it comes to brazing, there are two main equipment choices: setups utilizing oxygen/acetylene or those using air/acetylene torches Traditionally, oxygen/acetylene rigs have dominated many HVAC brazing applications across the United States. However, air/acetylene torches represent a viable alternative option. Contractors who have experimented with air/acetylene often value their enhanced portability and reduced operating …
Q: What shielding gas is most appropriate for arc welding aluminum? I’ve received differing recommendations – some say to use pure argon while others suggest helium is better. I plan to use both gas metal arc welding (GMAW) and gas tungsten arc welding (GTAW) processes. Can I use the same shielding gas for each …
The gas metal arc welding (GMAW) process, also known as MIG welding, is susceptible to various types of weld discontinuities or defects. This article outlines some of the frequently encountered issues. Excess Reinforcement Buildup When welding a joint from one side, the root side can experience a buildup of excess reinforcement or weld metal. …
Based on an article by SEAN WALKOWSKI, AWS Magazine, January 2024 Successful aluminum gas metal arc welding (GMAW) hinges on meticulous attention to detail and a foundational understanding. Taking preventive measures to sidestep usual errors is crucial to minimize downtime for troubleshooting. Aluminum GMAW demands thorough attention to detail and foundational knowledge for efficacy. It’s …
In the recent issue of the NFPA Journal (Winter 2023), a statistical report summary titled “Structure Fires Caused by Hot Work, 2017-2021” painted an alarming picture that cannot be ignored. The data underscores a pressing need to enhance safety measures, minimize fatalities, injuries, and property losses associated with hot work operations. The Importance of a …