| Otto Bihler Maschinenfabrik, Germany, one of the world�s largest manufacturers of automatic punching and bending machines for metal forming, also provides the industry with a range of welding equipment. Whether it is question of resistance welding, laser welding or contact welding, Bihler's machine systems can be flexibly equipped with state-of-the-art technologies. With its medium-frequency welding systems, the company has long exploited the considerable advantages of this technology over alternating current systems, and the traditional direct current systems. The even load on the main supply, the compensation for supply fluctuations and welding times in the millisecond range make it possible to apply high-energy intensities in the shortest possible time, and to monitor and control the welding process.
As an example is the company�s computer-controlled B 5000 welding system, suitable for resistance welding. This user-friendly, convenient system for medium frequencies is equipped with a monitor and computer and is characterised by its short welding times and universal scope of application in resistance welding. It even performs difficult welding operations reliably, such as, for example, when very thin material is used. The B 5000 features an inverter technology with industrial-grade computer for data management, programming, processing and display. The housing accommodates 2 inverters for 2 welding positions as well as variable frequency selection up to 5,000Hz. Designed for over 800 welds per minute; the B 5000 system also permits current and voltage measurements, output computations, monitoring of weld set strokes, etc.
In addition, Bihler offers a range of patented wire welding heads, models D1, D2 and D3 that consist of a material feed, a blank-holder, a cutting station and the actual welding head with the electrodes. The device for the adjustment of the electrode force for the welding pressure is located in the central drive. If required, a roll-straightener can be used together with these very compact welding units. Furthermore, the company offers its model BSW, a mobile strip joining welder which can be placed besides the processing machine for welding together the end of the strip of the coil running out and the beginning of the strip of the new material coil.
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