Chip morphology as a performance predictor during high speed end milling of soda lime glass

International Conference on Advances in Manufacturing and Materials Engineering 2017

机械制造;材料科学

Bagum, M.N.^1 ; Konneh, M.^1 ; Abdullah, K.A.^2 ; Ali, M.Y.^1

Department of Manufacturing and Materials Engineering, Kulliyyah of Engineering, International Islamic University Malaysia, Jalan Gombak, Kuala Lumpur

53100, Malaysia^1

Department of Mechanical Engineering, Kulliyyah of Engineering, International Islamic University Malaysia, Jalan Gombak, Kuala Lumpur

53100, Malaysia^2

关键词: Central composite designs;    Chip morphologies;    Cutting parameters;    High speed end milling;    Machined surface;    Performance predictor;    Temperature-sensitive materials;    Tool-chip contact;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/290/1/012037/pdf
DOI  :  10.1088/1757-899X/290/1/012037

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

Soda lime glass has application in DNA arrays and lab on chip manufacturing. Although investigation revealed that machining of such brittle material is possible using ductile mode under controlled cutting parameters and tool geometry, it remains a challenging task. Furthermore, ability of ductile machining is usually assed through machined surface texture examination. Soda lime glass is a strain rate and temperature sensitive material. Hence, influence on attainment of ductile surface due to adiabatic heat generated during high speed end milling using uncoated tungsten carbide tool is investigated in this research. Experimental runs were designed using central composite design (CCD), taking spindle speed, feed rate and depth of cut as input variable and tool-chip contact point temperature (Ttc) and the surface roughness (Rt) as responses. Along with machined surface texture, Rtand chip morphology was examined to assess machinability of soda lime glass. The relation between Ttcand chip morphology was examined. Investigation showed that around glass transition temperature (Tg) ductile chip produced and subsequently clean and ductile final machined surface produced.