TPT July 2015

Industry News

Polysoude opens its doors in Nantes POLYSOUDE held open days at its Nantes, France, headquarters in June. Over the two days, the company presented its latest developments in the fields of welding and weld overlay cladding using the TIG and TIGer (GTAW) process. Professionals and decision-makers from all industries who use welding in their line of business were invited to come and discover how they can optimise their productivity and guarantee a quality product. Representatives of the specialised trade press were also welcome. development of a welding programme guarantees a high-quality weld through automation. The welding cycle can be repeated as often as necessary with the same result. Orbital welding equipment can be used in difficult conditions such as a confined space or where there is a lack of accessibility or visibility. On all of these machines, the welding parameters can be checked and compiled into a printable protocol for guaranteed traceability. Another application of the TIG process is TIGer cladding. To increase their lifetime, components are coated in a resistant layer by the weld overlay cladding technique. Polysoude – France Website: www.polysoude.com

In 1975, MAC led the way in flux leakage testing

Polysoude has always aimed to optimise its customers’ productivity while improving the quality of their products by developing new solutions that tackle the most complex issues. Workshops on different topics, described below, offered opportunities to exchange information on the various types of mechanised and orbital TIG/TIGer welding and cladding applications. These applications are commonly used across a wide range of sectors such as conventional and nuclear power plants, solar farms, oil exploration, aerospace, processing of foods and pharmaceutical products, water treatment, etc. For orbital welding, it can be easily demonstrated that using the hot-wire TIG process with an open head significantly increases welding speed and can be used to join thicker tubes than the cold- wire TIG process. Automation via a program recorded in the power source guarantees flawless production. For very thick-walled parts, another way of increasing productivity in addition to the hot-wire TIG process consists of reducing the groove, and therefore the volume to be filled by the weld. The use of an open-type carriage welding head equipped with a narrow gap torch limits the quantity of metal to be deposited. Additional gains are made on preparing the groove by limiting the loss of material and the machining time. This technology guarantees a quality weld thanks to the TIG process and is perfectly reproducible by virtue of automation. When high quality welds are required, orbital TIG welding is the ideal technology for tube-to-tube or tube-to- tubesheet welding applications. With or without filler wire, this is a stable, reliable process that can be used on steel, stainless steel, titanium and nickel and aluminium alloys, for example. The

Forty years ago, MAC engineers introduced Rotoflux®, a new test system that could detect ID/OD defects in heavy-wall magnetic tubular products. Today, MAC’s high-speed flux leakage systems are the benchmarks for OCTG testing throughout the world.

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