Welding under thermal stress

showimage Welding under thermal stress

Ideal for welding with process arm robots and large amounts of heat: the Water Joint torch system

Water-cooled torch for welding with very high currents at duty cycles (DC) close to 100%); Water Joint is able to sufficiently dissipate large amounts of heat when welding thick sheet, multilayer or aluminum part, torch can rotate endlessly, may be used for process arm robots with inner cable dress

Typical applications with large amounts of heat occur in the manufacturing of commercial vehicles, rail vehicles and special machinery. Water Joint torch systems have proven their performance during a one-year pilot operation under such conditions. Now, SKS can offer a product that is ready for series production. With 72 mm2, the cross section of the copper conductor as compared to conventional water-cooled torches is very large. Therefore, it produces less voltage drops and stays relatively cool even without water cooling. Only the parts at the torch tip affected by the reflected energy of the welding process require additional cooling. Low power loss and targeted water cooling increase the efficiency of the overall system.

The high-current and water rotating joints of the Water Joint also make the otherwise rigid unit of the hose connections between robot and welding torch flexible. As with the air-cooled Power Joint, the robot-controlled torch can rotate endlessly, i.e. also beyond 360° around its axis or the wire electrode. Wire feeding, the flow of electrical current, electrical signals and inert gas work without limitation. Torsional strains to the torch cable in the welding robot’s hollow shaft that are otherwise caused by the torch system do not occur. This increases the service life of the cable considerably. Because of the unlimited rotation a reorientation of the robot is not necessary. This simplifies programming and avoids downtimes – which both lead to direct cost savings.

SKS also offers an innovative design for the water cooling system and the conduction of the cooling water. Instead of using susceptible combined current/water cables as part of the cable dress, the water hoses are placed separately at the air-cooled torch. As they are guided along the 6th axis of the robot it is also impossible that water gets into the robot. For the water cooler, two alternative designs are offered: passive and active cooling. The latter is able to cool two torch systems.

Another advantage for the investor is SKS‘ modular system design. The components not affected by water cooling as the central component, the high-current rotary joint, the wire feeder, the torch cable, the gas nozzle, and the wearing parts are identical with those of the Power Joint that has proven its reliability in more than 6,000 installations. This approach saves both direct costs for the acquisition and indirect costs for the management of spare parts.

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For more information, please visit http://www.sks-welding.com.

Images (Download http://www.rgt-gg.de/rgt/SKS/Bd_Liste.htm)

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SKS Welding leistet seit der Gründung 1989 Pionierarbeit für das automatisierte Lichtbogenschweißen. Das Unternehmen bietet eine komplette Serie von MIG/MAG-Schweißbrennern und die entsprechenden Schweißmaschinen aus einer Hand. Das Serviceangebot reicht von Machbarkeitsstudien für neue Kundenprodukte bis hin zur Betreuung für einen sicheren Produktionsstart. Der Umsatz 2012 erreichte ca. 17 Mio. EUR.

Kontakt
SKS Welding Systems GmbH
Martin Stenger M.A.
Marie-Curie-Straße 14
67661 Kaiserslautern
49(0)6301/7986-125
martin.stenger@de.sks-welding.com
http://www.sks-welding.com

Pressekontakt:
redaktionsbüro gerd trommer rgt
Gerd Trommer
Johannishofweg 7
64579 Gernsheim
49(0)6258/932030
presse@rgt-gg.de
http://www.rgt-gg.de