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Under the stress of dry milling stainless steel coated carbide end mill; alone may not be sufficient appropriate shape of the end mill (helix angle, rake angle and relief angle) has a direct influence on the strength of the cutting edge, which affect the life of the end mill milling material removal process in (Bouzakis, et al.), which should not be overlooked in the new.Moprasitthiphap this process appear to see research that attempts to improve education by cutting the shape of the cutting tool, such as Ema, S. et al (1989), et al., Omar O.E.E.K. (2007) has improved the efficiency of cutting with cutting tool geometry studies report that if the helix angle has the higher value will be reduced cutting force Zatarain, M. et al (2006) analyze, helix angle. Of the cutting tool, found that the helix angle is crucial for changing of the helix angle is when the vibrations harmonics is reduced to make the vibrations higher harmonics B. Moetakef et al., Imani (2008) studied the effects of helix angle diversity that affect stability in the bite forming materials by finite element found to be increasing more stable helix angle, milling processes, I.Rene Buj-Corral, et al (2011) has studied the influence of helix angle on end mill milling side milling showed high helix angle surface roughness decreases by Raja Izamshah, et al (2013), has studied the effects of helix angle on end mill accuracy for machining aerospace component thin-rib found that the helix angle can affect the deflection of high helix angle thin-rib the aerospace component of the deflection thin-rib aerospace will eventually reduce the quid.D Akira Hosokawa, et. al., has made improvement of CFRP sheet forming, etching (Carbon Fiber Reinforced Plastics) with increasing angle, helix with cutting tool found that cutting force decreases when the helix angle is high up and skin quality is improved when the helix angle, higher Izamshah, Raja et al. () to study the influence of cutting tool in contour milling material forming polyetheretherketones (PEEK) helix angle, rake angle and found that the angle affects the smooth skin significantly.
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