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Slip-line solutions for orthogonal machining with a step-type chip breaker and experimental validation of cutting parameters

Chawla, B.S. and Biswas, C.K. and Das, N.S. and Khanna, I.K. (2008) Slip-line solutions for orthogonal machining with a step-type chip breaker and experimental validation of cutting parameters. Journal of the Institution of Engineers (India), Part PR: Production Engineering Division, 88 (MAR). pp. 31-36.

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Abstract

Slip-line field models for orthogonal cutting with step -type chip breaker assuming adhesion friction at chip -tool interface are developed using those proposed by Dewhurst and Kudo. The analytical results predict that with decrease in distance of chip breaker from the cutting edge of the tool, the breaking strain increases. The variation of radius of curvature of chip, cutting ratio, cutting and thrust forces with position of chip breaker for a constant height of chip breaker is studied by conducting orthogonal turning tests on mild steel bar of 40 mm diameter, using a HSS tool. It is found that radius of curvature of chip, cutting ratio, cutting and thrust forces decrease with decrease in distance of the chip breaker from the cutting edge of the tool. For higher feeds, the calculated results from Dewhurst's field are found to be in good agreement with experimental observations, whereas the same is found to be true for Kudo's first field for lower feeds.

Item Type:Article
Subjects:T Technology > TS Manufactures
Academic Subject One:metal cutting
Academic Subject Two:slip line field
Academic Subject Three:chip breaker
Departments / MOR / COE:Departments > Mechanical Engineering
ID Code:10075
Deposited By: Dr Chandan Kumar Biswas
Deposited On:25 Oct 2013 01:56
Last Modified:25 Oct 2013 01:56

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