Improper Heat Input Manipulation on FCAW Consumables Qualification

Mil-E-24403/1 and AWS A5.20 specifications (“D” and “Q” designators) have their requirements on low and high heat inputs to qualify a FCAW wire in addition to the control of pre-heat and inter-pass temperatures. A specified heat input is an average heat input for all passes in a test assembly. AWS A5.20 / 17.2 even applies […]

Read More

Welding Automation for Heavy Fabrication

More and more, robotic welding is becoming a viable option for use in heavy fabrication. The sophistication and capacity of modern robot systems is suitable for large structures which require multi-pass welds. Processes used for heavy fabrication such as preheating, gas metal arc welding (GMAW), flux cored arc welding (FCAW), tandem gas metal arc welding […]

Read More