Material Engineering and Mechanical Manufacturing

Boring Bar with Constrained Damping

  • XIA Feng ,
  • LIU Zhanqiang ,
  • SONG Qinghua
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  • Key Laboratory of High Efficiency and Clean Mechanical Manufacture, Ministry of Education, School of Mechanical Engineering, Shandong University, Jinan 250061, China

Received date: 2013-10-22

  Revised date: 2013-12-03

  Online published: 2013-12-10

Supported by

National Natural Science Foundation of China (U1201245,51375272);Major Science and Technology Program of High-end CNC Machine Tools and Basic Manufacturing Equipment (2012ZX04003-041)

Abstract

Cutting chatter is a key factor which influences the quality and accuracy in machining. In order to improve the machining quality of holes, a novel boring bar with constrained damping is designed and manufactured. It is made up of four modules, the cutting head, substrate layer, damping layer and constraining layer. First, the damping performance of the boring bar is effectively improved through increasing the natural frequency, static stiffness and damping ratio for cutting stability. Secondly, ANSYS is used to calculate the impact factor of the material substrate layer thicknesses for damping performance. The optimized damping boring bar is obtained by parameters optimization. The results show that both the natural frequency and the damping ratio for the damping boring bar are higher than those for a traditional boring bar. It is also shown that the amplitude of the optimized damping boring bar has decreased 34% than that of the traditional boring bar at the same exciting frequence. Finally, the damping performance of the designed boring bar is validated by practical cutting experiments. Experimental results show that the surface roughness of the damping boring bar is 50% lower than that of the traditional boring bar for the same cutting conditions and the same ratio of length to diameter (L/D=6). It demonstrates that the constrained damping boring bar has better anti vibration performance.

Cite this article

XIA Feng , LIU Zhanqiang , SONG Qinghua . Boring Bar with Constrained Damping[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2014 , 35(9) : 2652 -2659 . DOI: 10.7527/S1000-6893.2013.0484

References

[1] Jia F, Yi H, Wang X S. The new progress of metal cutting chatter mechanism and control[J]. Manufacture Information Engineering of China, 2006, 35(1): 67-71.(in Chinese) 贾方, 易红, 王兴松. 金属切削颤振机理及其控制研究的新进展[J]. 中国制造业信息化, 2006, 35(1): 67-71.

[2] Mei C, Cherng J G, Wang Y. Active control of regenerative chatter during metal cutting process[J]. Journal of Manufacturing Science and Engineering, 2006, 128(1): 346-349.

[3] Li W, Wang X M, Xu M G. Deep hole machining method for NC adjustable diameter ultrasonic elliptical vibration boring[J]. Acta Armamentarii, 2013, 34(8): 1021-1027. (in Chinese) 李文, 王晓梅, 徐明刚. 深孔数控变径超声椭圆振动镗削加工方法研究[J]. 兵工学报, 2013, 34(8): 1021-1027.

[4] Mei C. Active regenerative chatter suppression during boring manufacturing process[J]. Robotics and Computer-Integrated Manufacturing, 2005, 21(2): 153-158.

[5] Sathishkumar B, Sundaram K M. Experimental studies on impact of particle damping on surface roughness of machined components in boring operation[J]. European Journal of Scientific Research, 2012, 71(3): 327-337.

[6] Kong T R, Mei D Q, Chen Z C. Research on mechanism of cutting chatter suppression based on magnetorheological intelligent boring bar[J]. Journal of Zhejiang University:Engineering Science, 2008, 42(6): 1005-1009. (in Chinese) 孔天荣, 梅德庆, 陈子辰. 磁流变智能镗杆的切削颤振抑制机理研究[J]. 浙江大学学报: 工学版, 2008, 42(6): 1005-1009.

[7] Daghini L, Archenti A, Nicolescu C M. Design, implementation and analysis of composite material dampers for turning operations[J]. International Journal of Mechanical Systems Science and Engineering, 2010, 2(2): 65-72.

[8] Daghini L, Archenti A, Nicolescu C M. Design and dynamic characterization of composite material dampers for parting-off tools[J]. Journal of Machine Engineering, 2010, 10(2): 57-70.

[9] Brecher C, Weinzierl M. New approaches for an automated production in ultra-precision machining[J]. The International Journal of Advanced Manufacturing Technology, 2009, 47(1): 47-52.

[10] Rao M D. Recent applications of viscoelastic damping for noise control in automobiles and commercial airplanes[J]. Journal of Sound and Vibration, 2003, 262(3): 457-474.

[11] Wang J, Wu F H, Han Y L. Boring bar design with laminar composite structure and research on properties[J]. China Mechanical Engineering, 2013, 24(6): 711-715. (in Chinese) 王军, 吴凤和, 韩亚丽. 层状复合结构镗刀杆设计与性能研究[J]. 中国机械工程, 2013, 24(6): 711-715.

[12] Rashid A, Nicolescu C M. Design and implementation of tuned viscoelastic dampers for vibration control in milling[J]. International Journal of Machine Tools and Manufacture, 2008, 48(9): 1036-1053.

[13] Rivin E I, Kang H. Enhancement of dynamic stability of cantilever tooling structures[J]. International Journal of Machine Tools and Manufacture, 1992, 32(4): 539-561.

[14] Lee D G, Suh N P. Manufacturing and testing of chatter free boring bars[J]. CIRP Annals-Manufacturing Technology, 1988, 37(1): 365-368.

[15] Lee D G, Hwang H Y, Kim J K. Design and manufacture of a carbon fiber epoxy rotating boring bar[J]. Composite Structures, 2003, 60(1): 115-124.

[16] Harris G M. Shock and vibration handbook[M]. New York: McGraw-Hill, 1998: 1-20.

[17] Kim N H, Won D, Ziegert J C. Numerical analysis and parameter study of a mechanical damper for use in long slender endmills[J]. International Journal of Machine Tools and Manufacture, 2006, 46(5): 500-507.

[18] Sortino M, Totis G, Prosperi F. Modeling the dynamic properties of conventional and high-damping boring bars[J]. Mechanical Systems and Signal Processing, 2013, 34(1): 340-352.

[19] Li W, Luo H B, Tang C X. Parameters optimization of built-in dual vibration absorption boring bar based on ANSYS[J]. Modular Machine Tool and Automatic Manufacturing Technique, 2011, 9(9): 43-46. (in Chinese) 李伟, 罗红波, 唐才学. 基于ANSYS的内置式双减振镗杆参数优化[J]. 组合机床与自动化加工技术, 2011, 9(9): 43-46.

[20] Dong F, Sun D G. Optimization for vibration-noise damping reductive structures with tubular symmetrical shapes[J]. Chinese Journal of Mechanical Engineering, 2002, 38(3): 29-33. (in Chinese) 董峰, 孙大刚. 管状对称阻尼减振降噪结构的优化[J]. 机械工程学报, 2002, 38(3): 29-33.

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