PT Journal AU Dugin, A Volesky, L TI Effect of Cutting Fluids on the Tool Life in Turning and Milling of Construction Steel SO Manufacturing Technology Journal PY 2014 BP 290 EP 296 VL 14 IS 3 DI 10.21062/ujep/x.2014/a/1213-2489/MT/14/3/290 DE Machining; Cutting fluid; Wear AB Using cutting fluids often enables an increase of cutting tool life. A large amount of cutting fluids produced in the European Union exists on the market of Czech Republic. It is quite difficult for purchasers of cutting fluids to acquire reliable test data about the performance of the fluids in industrial conditions and choose the best cutting fluid, the use of which will guarantee the longest tool life. In this regard comparative tests of cutting fluids were conducted at the laboratory of the Department of Machining and Assembly of the Technical University of Liberec to determine the effect of cutting fluids from different producers (from England, Germany, Norway and Switzerland) on tool life in turning and milling. ER