TPT May 2008

T ube & P ipe W elding: T rends & P rogress

Transithermic ® generator range of solid-state welders

or material combinations which are difficult to weld. The Teach Mode (patent pending), a technology based on a self-teaching system, generates optimal pulse shapes, even in difficult welding processes. The StarPulse lasers have a modular and compact construction, a removable operating user panel, and they can easily be integrated into automation solutions. The lasers also use a sweet spot resonator, ensuring results, independent of the parameters selected, and with constant high beam quality, starting from the first pulse (no first pulse effect). In combination with the Micro Weld™ option and direct beam delivery, weld spot diameters smaller than 0.1mm can be achieved, even if scan optics with larger focal lengths are used. A long focal length leads to a large working field, and therefore allows processing of several workpieces on one fixture with fast galvo deflection heads. Rofin/Baasel Lasertech – Germany

GH Group, Spain, is a supplier of induction heating equipment and installations. The Group is dedicated to providing superior induction heating equipment and solutions to the world market, with more than 4,000 customers in 50 countries. For the tube and pipe sector, GH provides complete solutions in induction welding, annealing and seam annealing, hardening and tempering, tube end stress relief, heating before forming, tube coating, and other customer processes.

The Group offers an entire range of modern, high frequency power supplies and equipment for induction heating applications, from MF IGBT inverters to HF Mosfet inverters. In the area of tube induction welding, which often requires frequencies up to 500kHz, the natural, most reliable and efficient component is the Mosfet transistor. This technology is provided by GH Group’s latest developments in variable frequency and automatic load adjustment. The company has developed the Transithermic ® generator range of solid-state welders, which can weld any tube specifications, allowing for any tube diameter, thickness and material. These machines provide flexibility and economy through reductions in downtime and scrap material. GH Group – Spain Fax : +34 961 352 171 Email : comercial@ghe.es Website : www.ghe.es

 GH Group supplies leading solutions in induction welding

Fax : +49 8151 776 159 Email : sales@baasel.de Website : www.rofin.com

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M ay 2008

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