TPT May 2009

P roduction & P rocessing of A utomotive T ube

Complex tube end-forming in the automotive industry

 Automotive tube cutting expertise from EMS (before and after cut)

EMS, France, is the manufacturer of a complete range of tube end-forming machines with standard working power from 30kN to 800kN. These machines – electrically or hydraulically driven – are utilized in the fabrication of automotive products. The single or double machines enable the forming of one or two ends, with a maximum of 10 successive working stations. The machines require no setting down of the tube and include end-forming, chamfering, machining and rolling operations. The company recently supplied its machinery to a German automotive subcontractor to simultaneously end-form both ends of stainless steel bent tubes. This task is difficult as both ends of the tube are  The tube from the German automotive subcontractor, end-formed using EMS technology

not located on the same axes. In carrying out this work, an important ID expansion of 50 per cent was achieved. The machine developed by EMS was able, under one clamping movement, to perform extreme end-forming with a working power of 400kN. EMS is still currently developing the cutting machine systems for this process. In addition to the classic CT system using knives – that allows cutting of over-length without scraps – EMS has also developed the CTR model. The CTR machine is based on a wheel that approaches and cuts the tube from inside to outside. The result is a clean cut, without burrs and deformation. The new fully electric model of cutting machine (type CTR AK), allows a combination of cutting, rolling and calibration of tubes up to Ø 400mm, with all type of material and wall thickness. The new model also cuts tubes with several angles, without any burrs or deformation. The new model is highly appreciated by the aerospace and exhaust industries because it is silent and electrically driven, and allows

manufacturing of tube ends without scraps or burrs. EMS also undertakes the manufacture of full automatic production lines for manufacturing press-fittings. The operations for this area include cutting, chamfering and end forming of stainless steel, steel, brass or copper tubes for the heating and sanitary industries. EMS is a leader in production lines or machines for mounting of catalytic exhaust systems, including forming, mounting, spinning and measuring technologies. Other EMS services include maintenance, supply of cutting and end-forming tools, and production of pre-serial prototypes. EMS – France Fax : +33 388 910537

Email : info@ems-sa.com Website : www.ems-sa.com

High Power RF Tubes for Pipe Welding

Find equivalent replacements for these and other RF tubes at: Richardson Electronics supplies high quality, high performance RF tubes at competitive prices. RS3060CJ ITK30-2 BW1184J2 RS3150CJ ITK60-2 BW1185J2 RS3300CJ ITK120-2 BW1643J2 industrial.rell.com/pipewelding.asp

Order your replacement tubes today. 800-348-5580 630-208-2200 (International) edg@rell.com

For a complete listing of our 70 worldwide locations, visit www.rell.com/locations.asp

68 ›

M ay 2009

www.read-tpt.com