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The Effectiveness of a Ceramic Tool for Caprolon Turning

O.Yu. Erenkov, S.A. Kovalchuk

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Pacific National University

e-mail: [email protected]

Received 21.02.2017

Abstract. The aim of this study is a comparative analysis of turning caprolon with indexable inserts made from different materials, namely: one plate made from wolfram and cobalt alloy VK8, another from ceramic material tungsten free carbide KNT16. The basis of the experimental setup is a laboratory research stand STD.201-2, which is used to study a dynamics of a technological system machine-tool tool blank and registration of cutting forces during turning. Functionally the stand consists of a head-tool holder, an interface unit, module connecting sensors, PC. It is experimentally proved that turning caprolon as by a cutting plate from alloy VK8 and a plate of ceramic material KNT16 is a stable process as evidenced by the slight changes of values of the main component of a cutting force however the range of change in the case of turning with the ceramic plate is smaller in comparison with the option of turning by wolfram and cobalt alloy VK8 plate for the selected processing modes. It is experimentally established that for the machining of caprolon it is advisable to use interchangeable cutting inserts made from ceramic material KNT16, and at the cutting speed 300 m / min applying of the ceramic plate is preferred over the plate from VK8 carbide, as indicated by the type of received chips.

Key words: caprolon, turning, cutting tool, tungsten free alloy, cutting force, chip forming.

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