MASc Student

Contact Information

Email: jamoulto@engmail.uwaterloo.ca

Biographical Information

2008: MASc, Mechanical Engineering, University of Waterloo
2006: BASc, Honours in Mechanical Engineering Co-op, University of Waterloo, Specialization in Welding

Research Projects

Double-sided arc welding

Double-sided arc welding (DSAW) is a new arc welding process that is being explored as it has potential benefits compared to traditional arc welding processes. DSAW consists of two welding torches connected to a single power supply. A welding arc is initiated between the 2 torches and used to weld a grounded workpiece. The electrodes can be combinations of plasma arc welding (PAW) and gas tungsten arc welding (GTAW) torches. Current research is being conducted using a PAW to GTAW configuration.

The DSAW process is being studied as it applies to high speed welding of aluminium alloy sheets in a butt joint configuration as it would apply for the fabrication of tailor welded blanks. DSAW is being studied as a variable polarity (VP) process as this permits cathodic cleaning of both sides of the workpiece, a feat that cannot be achieved with competing variable polarity plasma arc welding or Nd:YAG (neodymium-doped yttrium aluminum garnet) laser welding systems. Welds are being evaluated based on their cathodic cleaning of surface oxides, appearance, mechanical properties, microstructure and post weld formability limits.

Project sponsor(s)

  • Natural Sciences and Engineering Research Council of Canada (NSERC)

Project supervisor(s)

  • Professor David C. Weckman

Thesis Supervisor(s)

  • Professor David C. Weckman
Affiliation: 
University of Waterloo