Inverter-based GTA welding machines improve fabrication

Journal Article · Mon May 01 04:00:00 EDT 2000 · Welding Journal (Miami)

OSTI ID:20030394

Sammons, M

While known as precision process, many fabricators using the gas tungsten arc welding (GTAW) process fight several common problems that hinder quality, slow production, frustrate the operator and otherwise prevent the process from achieving its full potential. These include a limited ability to tailor the weld bead profile, poor control of the arc direction and arc wandering, poor arc starting, unstable or inconsistent arcs in the AC mode, high-frequency interference with electronics and tungsten contamination. Fortunately, new GTA welding technology--made possible by advances with inverter-based power sources and micro-processor controls--can eliminate common productivity gremlins. Further, new AC/DC inverter-based GTA power sources provide advanced arc shaping capabilities. As a result, many fabricators adopting this new technology have experienced phenomenal production increases, taken on new types of projects and reduced costs. Most importantly, the operators enjoy welding more.

• Research Organization: Miller Electric Mfg. Co., Appleton, WI (US)
• OSTI ID: 20030394
• Journal Information: Welding Journal (Miami), Journal Name: Welding Journal (Miami) Journal Issue: 5 Vol. 79; ISSN 0043-2296; ISSN WEJUA3
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
36 MATERIALS SCIENCE
COMPUTERIZED CONTROL SYSTEMS
EFFICIENCY
GAS TUNGSTEN-ARC WELDING
METAL INDUSTRY
POWER SUPPLIES
PROCESS CONTROL
PRODUCTIVITY