Authors: Chong Zhang Songmei Yuan Muhammad Amin Huitao Fan Qiang Liu
Publish Date: 2015/10/19
Volume: 85, Issue: 1-4, Pages: 573-583
Abstract
Ceramic matrix composites of type C/SiC got paramount importance due to their special properties like high specific strength high specific rigidity hightemperature strength and high wear resistance Their applications are increasing rapidly for space military and aerospace industries However due to inhomogeneous anisotropic and varying thermal properties of these composites there are issues to achieve desired quality high efficiency and costeffective processing in machining In this regard the cutting force is the most critical parameter which is required to be minimized for such composites to achieve better quality and minimum defects especially in milling processes In this research brittle fracture approach was adopted and a cutting force model was developed from C/SiC composites for rotary ultrasonic face milling RUFM process The experimental RUFM was carried out on C/SiC material and found that the cutting force decreased significantly with the increase of cutting speed whereas the same was found increased with the increase of feed rate and cutting depth By comparison of the experimental and simulation data of the cutting force it was found that the errors are below than 10 in most of the sets of parameters The variation found is due to the heterogeneity and other complex properties of C/SiC composites The developed cutting force model then further validated through another set of experiments and the results were almost the same as before experiments So the cutting force model developed in this paper is robust and it can be applied to predict the cutting force and optimization of the process
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