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Surface roughness and tool wear on cryogenic treated CBN insert on titanium and inconel 718 alloy steel

Thamizhmanii, Sivaprakasam and Mohideen, Rasool and Zaidi, A.M.A. and Hasan, Sulaiman (2015) Surface roughness and tool wear on cryogenic treated CBN insert on titanium and inconel 718 alloy steel. In: International Conference on Mechanical Engineering Research (ICMER), 18-19 August 2015, Kuantan, Pahang.

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Abstract

Machining of materials by super hard tools like cubic boron nitride (cbn) and poly cubic boron nitride (pcbn) is to reduce tool wear to obtain dimensional accuracy, smooth surface and more number of parts per cutting edge. wear of tools is inevitable due to rubbing action between work material and tool edge. however, the tool wear can be minimized by using super hard tools by enhancing the strength of the cutting inserts. one such process is cryogenic process. this process is used in all materials and cutting inserts which requires wear resistance. the cryogenic process is executed under subzero temperature -186º celsius for longer period of time in a closed chamber which contains liquid nitrogen. in this research, cbn inserts with cryogenically treated was used to turn difficult to cut metals like titanium, inconel 718 etc. the turning parameters used is different cutting speeds, feed rates and depth of cut. in this research, titanium and inconel 718 material were used. the results obtained are surface roughness, flank wear and crater wear. the surface roughness obtained on titanium was lower at high cutting speed compared with inconel 718. the flank wear was low while turning titanium than inconel 718. crater wear is less on inconel 718 than titanium alloy. all the two materials produced saw tooth chips.

Item Type: Conference or Workshop Item (Paper)
Subjects: T Technology > TJ Mechanical engineering and machinery > TJ1125-1345 Machine shops and machine shop practice
Divisions: Faculty of Mechanical and Manufacturing Engineering > Department of Manufacturing and Industrial Engineering
Depositing User: Normajihan Abd. Rahman
Date Deposited: 23 Sep 2015 07:34
Last Modified: 23 Sep 2015 07:34
URI: http://eprints.uthm.edu.my/id/eprint/7234
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