Abstract
Abstract One of the most important components of a tube end flaring machine is the flanging tool, which is subjected to mechanical stresses such as compression, bending and abrasion. It is therefore very important to choose the optimal material and manufacturing technology for the flanging tool. Böhler tool steel grades K110 and K340 were chosen as the subject of our research. Both materials were used to produce tube flanging tools, which were subjected to hardness testing, microscopic examination and surface wear testing after simple cooling or deep cooling and triple high temperature tempering after austenitisation in a vacuum at elevated temperature. Based on the measurements, the deep cooled and triple tempered K340 steel was found to be the most favourable tool steel for the production of the tube flanging tool.
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