RT Journal Article SR Electronic A1 Ťavodová, Miroslava A1 Kalincová, Daniela A1 Kaštan, Rudolf T1 The Research of Options for the Innovation Heat Treatment of the Tools for Coinage in Order to Increase their Lifetime JF Manufacturing Technology Journal YR 2016 VO 16 IS 1 SP 274 OP 280 DO 10.21062/ujep/x.2016/a/1213-2489/MT/16/1/274 UL https://journalmt.com/artkey/mft-201601-0056.php AB This paper describes research in technology of the heat treatment for tool steel Böhler K455 designed for cold work. The aim of the research was based on operational experiments to draft procedures for heat treatment of the tools in a vacuum hardening furnace. Testing of two alternative methods and comparison of the state of microstructure and the mechanical properties with the current state of these indicators of dies quality will highlight the importance of introducing innovations to achieve higher lifetime of dies and the justification for the purchase of new technological equipment.