Generation of Temperature Rise Distribution at Chip of EN31 Steel Due to Primary Deformation Zone during Turning Using MATLAB® and to Study its Machinability Behavior with CVD Carbide Insert

  IJETT-book-cover  International Journal of Engineering Trends and Technology (IJETT)          
  
© 2014 by IJETT Journal
Volume-15 Number-3
Year of Publication : 2014
Authors : Ajay Goyal
  10.14445/22315381/IJETT-V15P229

Citation 

Ajay Goyal. "Generation of Temperature Rise Distribution at Chip of EN31 Steel Due to Primary Deformation Zone during Turning Using MATLAB® and to Study its Machinability Behavior with CVD Carbide Insert", International Journal of Engineering Trends and Technology (IJETT), V15(3),145-152 Sep 2014. ISSN:2231-5381. www.ijettjournal.org. published by seventh sense research group

Abstract

Temperature rise at chip during machining leads to formation of built up edge, reduced tool life and poor surface finish. In this paper, one of the author’s coding at MATLAB® is modified with small changes to determine temperature rise distribution at chip side due to primary deformation zone. The modified coding is a simplified program of an analytical model, linked with basic machining parameters and is expected to obtain temperature rise contour in few seconds during starting of turning operation. The modified coding is validated using already obtained results of scientists. The developed coding is used for EN31 Steel when turned with MTCVD coated carbide inserts. The work is carried out with number of turning operations on DRO lathe machine. Dynamometer & Digital Vernier are used as accessories to measure developed forces during machining & chip thickness respectively during each operation. The machining data is collected and is used to generate temperature rise contour graphs for every experiment from developed coding. A study of variation of developed forces & maximum temperature rise at chip during machining has also been done with respect to cutting parameters. It was seen that cutting parameters are directly proportional to developed forces and temperature rise during machining. Influence of Cutting Velocity is most and Depth of Cut is least in varying the forces and temperature rise.

References

1. AB Chattopadhyay,. “Cutting temperature causes, effects, assessment and control”, IIT Kharagpur Ministry of Human Resourse & Development NPTEL Manufacturing Science II, lecture 11, Version 2.
2. R. Komanduri, ZB Hou. “Thermal modeling of the metal cutting process * Part II: temperature rise distribution due to frictional heat source at the tool-chip interface.”, International Journal of Mechanical Sciences, vol. 43, pp 57-88, 2001
3. A. Goyal, S. Tyagi, S. Dhiman, RK Sharma, “A Study of Experimental Temperature Measuring Techniques used in Metal Cutting”, Jordan Journal of Mechanical and Industrial Engineering, vol. 8, pp 82-93, 2014
4. A. Goyal, S. Tyagi, S. Dhiman, RK Sharma, “Studying Analytical Models of Heat Generation at Three Different Zones in Metal Cutting”, 3rd International Conference on Production and Industrial Engineering, held at National Institute of Technology, Jalandhar, India, 882 – 894, 2013
5 A. Goyal, S. Tyagi, S. Dhiman, RK Sharma , “Studying Methods of Estimating Heat Generation at Three Different Zones in Metal Cutting: A Review of Analytical models”, International Journal of Engineering Trends and Technology, vol. 8, pp. 532-545, 2014
6. R. Komanduri, ZB Hou , “Thermal modeling of the metal cutting process Part I * Temperature rise distribution due to shear plane heat source”, International Journal of Mechanical Sciences, vol. 42, pp. 1715-1752, 2000
7. A. Goyal, RK Sharma, “Mathematical computation of thermal modeling at work piece & chip side for turning operation due to combined effect of deformation zones using MATLAB® programming”, Jordan Journal of Mechanical & Industrial Engineering., communicated on 7th September 2014.
8. EG Loewen, MC Shaw, “ On the analysis of cutting tool temperatures”, Transactions of ASME, vol. 71, pp. 217-31, 1954

Keywords
Machining, temperature rise, cutting force, shear zone, analytical modeling, MATLAB