An Efficient Model for Trust Force Dynamic Analysis in Drilling of CFRP/AL Stack

Hui Cheng; Yuan Li; Kai Fu Zhang; Bin Luo

doi:10.4028/www.scientific.net/AMM.249-250.263

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 249-250An Efficient Model for Trust Force Dynamic...

An Efficient Model for Trust Force Dynamic Analysis in Drilling of CFRP/AL Stack

Abstract:

CFRP/AL stacks are widely used in modern aircraft manufacturing industry. Thrust force is the most important element which will cause delamination in the drilling of stack. This paper developed a thrust force dynamic analysis model for drilling of CFRP/AL stack, by firstly, representing the drilling process into a five-stage model. Secondly, the dynamic thrust force is decomposed into two parts (sub models for CFRP and AL drilling). Thirdly, the thrust force components on both tool major cutting edge and chisel edge is developed according to the analysis on infinitesimal cutting unit in both sub models for CFRP and AL drilling. Lastly, several experiments are performed to compare the result of thrust force analysis, which proves that the purposed model can analyze the dynamic thrust force in drilling of CFRP well.

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Periodical:

Applied Mechanics and Materials (Volumes 249-250)

Pages:

263-269

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.249-250.263

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Online since:

December 2012

Authors:

Hui Cheng, Yuan Li, Kai Fu Zhang, Bin Luo

Keywords:

CFRP/Al, Drilling, Dynamic, Thrust Force

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