Abstract
The direct laser-assisted machining (DLAM) technique is introduced to improve the CFRP machining process. The DLAM technique applies focused laser at the tool edge through a sapphire tool. A fibre laser with 4.3 W power was used to have the desired temperature, estimated from the finite element model. Experimental orthogonal cutting tests were performed to compare the DLAM technique to the conventional dry cutting of the woven CFRP. We have observed reduced cutting forces in both in-plane and side cutting orientations. Observations with 3D surface profilometer also showed a decrease in defects and improved surface roughness when DLAM was applied.
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