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http://dx.doi.org/10.14775/ksmpe.2019.18.10.060

Optimization of Machining Conditions in Milling of Titanium Alloy (Ti-6A1-4V) Using the Response Surface Method  

Kim, Jong-Min (Graduate School, Gyeongsang National Univ.)
Koo, Joon-Young (DMI)
Kim, Jeong-Suk (School of Mechanical Engineering, ERC/NSDM, Pusan National Univ.)
Jun, Cha-Soo (Department of Industrial and Systems Engineering & Engineering Research Institute, Gyeongsang National University)
Publication Information
Journal of the Korean Society of Manufacturing Process Engineers / v.18, no.10, 2019 , pp. 60-67 More about this Journal
Abstract
Recently, lightweight materials such as Ti alloys have been used increasingly in the aerospace and high-tech industries for weight loss and fuel efficiency. Because of built-up edges and workpiece deflection due to low stiffness, the Ti alloys have poor machinability. In our study, systematic experiments were conducted to investigate the milling characteristics of the Ti alloy (Ti-6A1-4V) with endmills. The independent variables in the experiment were spindle speed, feed per tooth, and axial depth. Cutting force, acceleration RMS, and surface roughness were measured. Using the response surface method, the optimal cutting conditions were analyzed to improve machining quality and productivity.
Keywords
Ti-6A1-4V; End Milling; Cutting Force; Acceleration RMS; Surface Roughness; Response Surface Method;
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