Effects of End Mill Helix Angle on Accuracy for Machining Thin-Rib Aerospace Component

Abstract:

Accuracy of machined component is one of the challenging tasks for manufacturer. In the aerospace industry, machining process is widely used for fabrication of unitized-monolithic component that contains a thin-walled structure. During machining, the cutting forces cause deflection to the thin-wall section, leading to dimensional form errors that cause the finished part to be out of specification or failure. Most of the existing research for machining thin-wall component only concentrated on the process planning and the effects of cutter geometric feature is often neglected. Tool geometric feature has a direct influence on the cutting performance and should not be neglected in the machining consideration. This paper reports on the effect of helix angle on the magnitude of wall deflection. The established effects will be used for the development of high performance cutting tool for specifically machining thin-wall component.

• Periodical: Applied Mechanics and Materials (Volume 315)
• Pages: 773-777
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.315.773
• Online since: April 2013
• Authors: Raja Izamshah, M.Yaakob Yuhazri, Mohd Hadzley, Mohd Amran Ali, Subramonian Sivarao
• Keywords: End Mill, Helix Angle, Machining, Surface Error

References

[1] W.A Kline, R.E. DeVor and I.A. Shareef, The prediction of surface accuracy in end milling, ASME J. Eng. Ind. 104 (1982) 272-278.

DOI: 10.1115/1.3185830

[2] R. Sagherian and M.A. Elbestawi, A simulation system for improving machining accuracy in milling, Computers in Industry 14 (1990) 293-305.

DOI: 10.1016/0166-3615(90)90037-p

[3] J.S Tsai and C.L. Liao, Finite element modeling of static surface errors in the peripheral milling of thin-walled wall, J. of Mat. Processing Tech. 94 (1999) 235-246.

DOI: 10.1016/s0924-0136(99)00109-0

[4] Y. Altintas, D. Montgomery and E. Budak, Dynamic peripheral milling of flexible structures, J. of Eng. for Industry (Transaction of the ASME) 114 (1992) 137-145.

DOI: 10.1115/1.2899766

[5] E. Budak and Y. Altintas, Peripheral milling conditions for improved dimensional accuracy, Int. J. of Mach. Tools and Manufacture 34 (1994) 907-918.

DOI: 10.1016/0890-6955(94)90024-8

[6] E. Budak and Y. Altintas, Modeling and avoidance of static form errors in peripheral milling of plates, Int. J. of Mach. Tools and Manufacture 35 (3) (1995) 459–476.

DOI: 10.1016/0890-6955(94)p2628-s

[7] H. Ning, W. Zhigang, J. Chengyu and Z. Bing, Finite element method analysis and control stratagem for machining deformation of thin-walled components, J. of Mat. Processing Tech., Vol. 139 (2003) 332-336.

DOI: 10.1016/s0924-0136(03)00550-8