Study of chip formation mechanism in CFRP turning

Abstract

Carbon fiber reinforced polymer (CFRP) is a composite material much less studied than steel and other metals. This material class has excellent properties and allows weight reduction in structural parts; however, the CFRP turning has not the same popularity in the industry of other machining processes as milling and drilling. In this work, a literature survey was conducted to clarify the behavior of CFRP in machining, especially turning. This study evaluated the influence of the composition of the material and the fiber orientation angle, the surface damage during chip formation, and, mainly, parameters as cutting speed, feed rate, depth of cut, and tool geometry and material in the chip formation mechanisms. After discussion, some gaps are identified to be explored using PCD and tools under high cutting parameters conditions. After considering the evaluated studies, an experimental procedure is proposed for future execution, in which the effect of the cutting speed, depth of cut, and tool clearance angle.