Improvement of machining accuracy in CFRP secondary working by constant load feeding

Comparison of constant load feeding with constant rate feeding

Abstract

A new cutting method, Constant Load Feeding, is proposed as a high precious secondary working tool in CFRP cutting. The constant load feeding of CFRP (work material) can restrain the occurrence of cutting defects such as burr and scuffing in a diamond saw cutting. Changing the contact condition between the cutting edges and CFRP, from a Line Contact to a Point Contact, also restrain the occurrence of chipping at the beginning of cutting and the formation of irregular shape at the cutting termination. The combining of Constant load Feeding with Point Contact eliminated most of the cutting defects even in the CFRP cutting with a low rigidity cutting tool like the diamond saw blade.