Study on Cutting Chatter Stability of a Computerized Numerical Control Camshaft Grinder

Zhang Qing, Chen Wentao, Chen Miao, Wang Yuzhuo, Zheng Dateng

Abstract

The chatter in the follow-up grinding process will affect the quality of camshaft grinding. In order to suppressing chatter，the regenerative chatter model of follow-up grinding based on regenerative chatter theory and the characteristics of follow-up grinding was built，considering the regenerative chatter of both camshaft and grinding wheel. Based on the regenerative chatter model，the stability limit diagram was portrayed to study the regenerative chatter stability of the follow-up grinding. The grinding tests on the camshaft grinding machine were carried out to verify this model. The vibration features of the grinding machine were inspected in both frequency domain and time-frequency domain，and the results agreed well with the stability limit diagram. It testified the regenerative chatter model and feasibility of the chatter predicting and the machining parameters' optimizing by stability limit diagram.

 

Keywords:  camshafts, grinding machine, chatter, stability


Full Text:

PDF


References


SHENG X M，MI H Q，CHEN T，et al. The key technique in high speed and precision no grinding of cam axes[J]. New Technology & New Process，2006(8)：61—64.(In Chinese)

JIANG Z D，HE Y Y. Advances of research on the character of grinding chatter [J]. Manufacturing Technology & Machine Tool， 2012(9)：35—42.(In Chinese)

LI H Q，SHIN Y C. A study on chatter boundaries of cylindrical plunge grinding with process condition-dependent dynamics[J]. In－ ternational Journal of Machine Tools & Manufacture，2007，47(10)： 1563—1572.

ZHONG J L，SHEN S S，MI J. Research on stability prediction of plung grinding process [J]. Manufacturing Automation，2014，36(13)：48—50.(In Chinese)

CHI Y L，LI H L. Study on contact stiffness and natural frequency in cylindrical plunge grinding [J]. China Mechanical Engineering， 2016，27(4)：1294—1298.

LEONESIO M，PARENTI P，BIANCHI G. Frequency domain identification of grinding stiffness and damping[J]. Mechanical Systems and Signal Processing，2017，93：545—558.

WECK M，HENNES N，SCHULZ A. Dynamic behaviour of cylindrical traverse grinding processes [J]. Manufacturing Technology， 2001，50(1)：213—216.

PARIS H，PEIGNE G，MAYER R. Surface shape prediction in highspeed milling [J]. International Journal of Machine Tools & Manu－ facture，2004，44(15)：1567—1576.

JIANG Y X，WANG T Y，HUANG G L，et al. Theory of regenerative chatter stability and evaluation method for cylindrical traverse grinding [J]. Journal of Vibration and Shock，2008，27(12)：61—63. (In Chinese)

JIANG Y X，WANG T Y，ZHANG Y，et al. Analysis of regenerative chatter stability theory and evaluation method on cylindrical plunging grinding [J]. Journal of Tianjin University (Science and Tech－ nology)，2009，42(4)：283—286.(In Chinese)

JIANG Z D，HE Y Y. Research on stability prediction of the crankshaft CNC tangential point tracing grinding [J]. Mathematical Problems in Engineering，2015(6)：1—10.

YAN Y，XU J，WIERCIGROCH M. Regenerative and frictional chatter in plunge grinding[J]. Nonlinear Dynamics，2016，86(1)：283— 307.

REN C G，SHEN X L，PI Z M. Experimentation research on dynamic performance of high speed grinder and variable speed grinding flutter [J]. Machine Tool & Hydraulics，2011，39 (21)：66—69.(In Chinese)

BARRENETXEA D，MANCISIDOR I，BEUDAERT X，et al. Increased productivity in centerless grinding using inertial active dampers[J]. Manufacturing Technology，2018，67(1)：337—340.

AHRENS M，DAGEN M，DENKENA B，et al. An active damping method for chatter vibration in plunge grinding using electromagnetic actuators[J]. Procedia CIRP，2016，46：197—200.


Refbacks

  • There are currently no refbacks.