Open Access Journal

ISSN : 2456-1290 (Online)

International Journal of Engineering Research in Computer Science and Engineering (IJERCSE)

Monthly Journal for Computer Science and Engineering

Open Access Journal

International Journal of Engineering Research in Mechanical and Civil Engineering (IJERMCE)

Monthly Journal for Mechanical and Civil Engineering

ISSN : 2456-1290 (Online)

An Experimental Investigation on Machinability of Titanium and Steels using Cryogenic Machining

Author : Samatham Madhukar 1 Aitha Shravan 2 Katarapu Ram Kumar 3 J. Jagadesh Kumar 4

Date of Publication :18th May 2017

Abstract: Machinability is a property or quality of any material that can be clearly defined and quantified, to indicate how easy (or difficult) it is, to perform machining operations on it. In fact, the term is ambiguous, but the machinability of any material can be assessed using parameters like (i) tool life (ii) cutting forces (iii) power consumption (iv) surface finish and (v) chip morphology. In the current paper machinability of the materials like Mild steel, Stainless Steel and Titanium are studied; however special emphasis is given to Titanium as it difficult to machine due to high cutting forces, temperatures, chemical reactions with tools, and a relatively low modulus of elasticity. Titanium does not form a built-up edge on tools which is a common problem while machining steels and this result in good surface finishes even at low cutting speeds. The lack of a built-up edge, however, increases the alloying and abrading action of the thin chip which races over a small tool-chip contact area under high pressures. The combination of above characteristics and relatively poor thermal conductivity of titanium results in abnormally high tool-tip temperatures. To overcome this, one of the best techniques available is Cryogenic Machining. Cryogenic machining is a process in which the traditional lubrocooling is replaced by liquid nitrogen (LN2). Liquid nitrogen is more preferable in machining to dissipate heat generated because it is cost effective, safe, non-flammable and environment friendly gas. In addition, it does not contaminate work piece and no separate mechanism for disposal is required. In the current paper, the overall machining is done on turning machine and the parameters like Cutting forces, Surface finish, Temperature at cutting area and power consumption are obtained for the three materials. The overall results are tabulated and the conclusions are drawn accordingly. The main objective of the research is to improve the machinability of materials by using Cryogenic Machining techniques.

Reference :

    1. S. Madhukar, A. Shravan, P. Vidyanand Sai and Dr. V.V.Satyanarayana (2016), A Critical Review on Cryogenic Machining of Titanium Alloy (Ti-6Al-4V). International Journal of Mechanical Engineering and Technology, 7(5), pp. 38-45
    2. Aitha Shravan, Samatham Madhukar, Bootla Akhil, Dr.A. A. Sri Rama Krishna , " Experimental and Numerical Analysis of Metal Removal Rate and Surface Finish on Al- Ti Alloy", International Journal of Scientific Research in Science, Engineering and Technology(IJSRSET), Print ISSN : 2395-1990, Online ISSN : 2394-4099, Volume 3 Issue 1, pp.407 411, January-February 2017. URL : http://ijsrset.com/IJSRSET1731104.php
    3. G. A. Salishchev, R. G. Zaripova, A. A. Zakirova and H. J (1996). McQueen: In Hot workability of steels and light alloys-composites ed. by H. J. McQueen, E. V. Konopleva and N. D. Ryan, (TMS-CIM, Montreal) pp. 217–226.
    4. V. K. Aleksandrov, N. F. Anoshkin, G. A. Bochvar et al (1979): Semiproducts out of titanium alloys, (Metallurgy, Moscow) p. 512 (in Russia).
    5. Samatham Madhukar, Birudala Raga Harshith Reddy, Rontala Saketh Reddy And Dr. V.V. Satyanarayana , 2017. Experimental Investigation Of Effect Of Heat Treatment On Nose Radius Of Insert And Temperature At Cutting Area In Turning Of Titanium (Grade 2).International Journal Of Mechanical Engineering & Technology (Ijmet).Volume:8,Issue:3,Pages:34-41
    6. A. Shokrani, V. Dhokia, and S. T. Newman, Environmentally conscious machining of difficult-to machine materials with regard to cutting fluids, International Journal of Machine Tools and Manufacture, vol. 57, pp. 83-101, 2012.

    1. S. Madhukar, A. Shravan, P. Vidyanand Sai and Dr. V.V. Satyanarayana (2016), A Critical Review on Cryogenic Machining of Titanium Alloy (Ti-
    2. 6Al-4V). International Journal of Mechanical Engineering and Technology, 7(5), pp. 38-45
    3. Aitha Shravan, Samatham Madhukar, Bootla Akhil, Dr. A. A. Sri Rama Krishna , " Experimental and Numerical Analysis of Metal Removal Rate and Surface Finish on Al- Ti Alloy", International Journal of Scientific Research in Science, Engineering and Technology(IJSRSET), Print ISSN : 2395- 1990, Online ISSN : 2394-4099, Volume 3 Issue 1, pp.407- 411, January-February 2017. URL : http://ijsrset.com/IJSRSET1731104.php
    4. G. A. Salishchev, R. G. Zaripova, A. A. Zakirova and H. (1996). McQueen: In Hot workability of steels and lightalloyscomposites ed. by H. J. McQueen, E. V. Konopleva and N. D. Ryan, (TMS-CIM, Montreal) pp. 217–226.
    5. V. K. Aleksandrov, N. F. Anoshkin, G. A. Bochvar et al (1979): Semiproducts out of titanium alloys, (Metallurgy, Moscow) p. 512 (in Russia).
    6. Samatham Madhukar, Birudala Raga Harshith Reddy, Rontala Saketh Reddy And Dr. V.V. Satyanarayana ,2017. Experimental Investigation Of Effect Of Heat Treatment On Nose Radius Of Insert And Temperature At Cutting Area In Turning Of Titanium (Grade 2).International Journal Of Mechanical Engineering & Technology (Ijmet).Volume:8,Issue:3,Pages:34-41
    7. A. Shokrani, V. Dhokia, and S. T. Newman, Environmentally conscious machining of difficult-to machine materials with regard to cutting fluids, International Journal of Machine Tools and Manufacture, vol. 57, pp. 83-101, 2012.
    8. D. Lung, F. Klocke, and A. Krämer, High Performance Cutting of Aerospace Materials,Advanced Materials Research, vol. 498, pp. 127-132, 2012.

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