Abstract
The paper presents an experimental-analytical method for determination of temperature in the cutting zone during the orthogonal turning of GRADE 2 titanium alloy. A cutting insert with a complex rake geometry was used in the experiments. The experimental part of the method involved orthogonal turning tests during which the cutting forces and the chip forming process were recorded for two different insert rake faces. The analytical part used a relationship between the cutting forces and the temperature in the Primary Shear Zone (PSZ) and the Secondary Shear Zone (SSZ), which are described by the Johnson-Cook (J-C) constitutive model and the chip forming model according to the Oxley’s theory. The temperature in the PSZ and SSZ was determined by finding the minimum difference between the shear flow stress determined in the J-C model and the Oxley’s model. Finally, using the described method, the relationship between the temperature in the PSZ and SSZ and the rake face geometry was determined. In addition, the temperature in the cutting zone was measured during the experimental tests with the use of a thermovision camera. The temperature distribution results determined experimentally with a thermovision camera were compared with the results obtained with the described method.
Highlights
Machining is one of the most important technologies of making the parts of machines and equipment
List et al determined the temperature in the cutting zone based on the developed numerical model which accounts for crater wear on the tool face [34]
The paper presents an experimental-analytical method for temperature determination in the Primary Shear Zone (PSZ) and SZZ during orthogonal turning
Summary
Machining is one of the most important technologies of making the parts of machines and equipment. The photolithography was used to make thin structures which are Ni-Cr thermocouples (Thin Film Thermocouples—TFTs) protected against the chip by the TiC or TiAlN/TTT layers Such prepared tools allow the temperature measurement in selected points on the rake face. The temperatures generated in the edge protective layers are obtained These methods allow obtaining information on the temperature distribution on the cutting insert rake face. Analytical calculation models are a separate group of temperature determination methods in the cutting zone They are based on the relationships from different fields of science (materials science, physics) applied to describe the material behaviour during decohesion. List et al determined the temperature in the cutting zone based on the developed numerical model which accounts for crater wear on the tool face [34]
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
