Exploring pulse arc welding
Properties and configurations required for pipeline welding are increasingly diverse. Novel welding techniques and equipment are continuously being developed. One of these areas is pulse arc welding.When using standard gas metal arc welding (GMAW) techniques, the work area is limited by welding conditions (orbital and/or narrow gap), so is transferring metal to the arc.
Pulse arc welding widens the available work area, thanks to an increased transfer quality and stability, comparable to spray arc welding, but with a higher energy efficiency. The heat cycle offered by pulse arc welding allows for different mechanical properties and more compact welds.
Serimax develops a pulse arc welding system, part of its available product range. It offers customers a wider choice of welding solutions.
This equipment will be of particular interest on projects involving high strain ageing, corrosion resistant alloy and high strength steel.
The new equipment will support both standard and pulse arc welding, in single or dual torch configurations. Tandem mode will also be supported.
The architecture will be based on an STX05-PLC, with a new power source and digital interface. It will be driven by command control, using new software
Serimax has operational centres in six countries, from the deep south of the USA to the coastline of Malaysia and its services cover land and marine pipelines, spooling operations, offshore fabrication and multi-joint activities.
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Serimax is based in Villepinte, France. www.serimax.com
