Welding Recovery Methods of the Pressure Casting Dies
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چکیده
Welding hot-work tool steels, containing 0.3-0.6% of carbon, is difficult both because of the elevated carbon content and because of significant hardening resulted from large amounts of alloying elements. A development of welding technology, i.e. better quality of electrodes, modern welding devices, improved welding technologies and better steel quality, make welding of such steel types possible today. A development of welding technology for tool steels, especially in the case of expensive tools, such as pressure casting dies has a profound justification taking into account economical advantages and quick repair possibilities, which is a matter of principal importance in the case of a lot production of pressure castings.
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