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[1] [2] [3] The RF power generator converts line power to high-frequency, high-voltage power for welding. Typical voltages are 1kVAC – 1.5kVAC at a frequency of 27.12 MHz. [1] The power needed for welding is based on the area of the weld, thickness, and the material. [2] The control unit is the system used for operating the machine.
The International Institute of Welding Technology IIW published the Guideline "Recommendations for the HFMI Treatment" [3] in October 2016. An overview of higher frequency hammers (HFMI) is presented, and recommendations for the correct application of the method and quantitative measurements for quality assurance the guideline provides the basis for measurements of HFMI improved welded joints ...
An induction generator is used to produce high frequency current in the range of 2 to 10 MHz. [5] The range used is regulated by the FCC to avoid interference with broadcast signals. An induction coil converts the high frequency current from the induction generator into the necessary alternating magnetic field. A single turn coil may be used ...
The apparatus used for induction welding processes includes a radio frequency power generator, a heating station, the work piece material, and a cooling system. The power generator comes in either the form of solid state or vacuum tube and is used to provide an alternating current of 230-340 V or a frequency of 50–60 Hz to the system.
In December 2009, Stephenson & Blake acquired the steel rule tooling business from DR Tooling Ltd; They now design and manufacture steel cutting tools alongside their High Frequency Welding tools. In 2010 Stephenson & Blake acquired the Brass Welding/High Frequency Welding rule business from Caslon.
With speed welding, the plastic welder, similar to a soldering iron in appearance and wattage, is fitted with a feed tube for the plastic weld rod. The speed tip heats the rod and the substrate, while at the same time it presses the molten weld rod into position. A bead of softened plastic is laid into the joint, and the parts and weld rod fuse.
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