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KMID : 1159320120140040289
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Korean Journal of Vision Science
2012 Volume.14 No. 4 p.289 ~ p.294
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Machinability Evaluation of Novel Cellulose Acetate for Spectacle Frame for High Quality Machining
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Kang Ik-Soo
Choi Hyun-Jin
Lee Seung-Yong
Lee Tae-Ho
Go Young-Jun
Kim Ki-Hong
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Abstract
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Purpose: The aim of this study is to investigate the machinability of developed novel cellulose acetate(CA) for improving the machined quality and productivity. Methods: The machinability is evaluated under various cutting conditions with cutting speeds and feeds. Cutting experiments of CA are conducted to investigate the machinability in terms of cutting forces, surface roughnesses, and chip formations. Result: The cutting forces are low at higher speeds except for 20,000 and 30,000 rpm. The surface roughnesses at higher cutting speed conditions are better than that of lower speed conditions. The correlation between the cutting force and the surface roughness at high speed conditions is not sufficient. Conclusion: The machinability of developed CA for spectacle frames were discussed in terms of the cutting forces, surface roughnesses, and chip formations. The machinability is improved at high speed and low feed conditions. A machinability criteria using the experimental results is proposed in this study.
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KEYWORD
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Machinability, Cellulose acetate, Spectacle frame, Cutting force, Surface roughness
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