20.500.12556/RUL-179637 Effect of tool geometry and LCO2 cooling on cutting forces and delamination when drilling CFRP composites using PCD tools Lightweight materials like Carbon Fiber Reinforced Polymers (CFRPs) present certain challenges, mainly regarding the resultant surface integrity of the holes. Different techniques such as optimized tool geometries, machining techniques and cooling/lubricating techniques have been tested for improving surface integrity on CFRPs. Unfortunately using coolants presents certain challenges when machining CFRPs, as the moisture absorption can degrade the mechanical properties of the composite, on top of the environmental and health hazards created by water and oil based metalworking fluids. Therefore, this study aims to evaluate the influence of environmentally friendly liquid carbon dioxide (LCO2) based cooling/lubricating conditions and Polycrystalline Diamond (PCD) drill bit geometries (point angle) on the delamination when drilling CFRP composites. The results showed significant influence of the tool geometry and cooling condition on the surface integrity of CFRPs, especially in the case of the former. LCO2 cooling drilling composites sustainable machining surface integrity LCO2 hlajenje vrtanje kompoziti trajnostno odrezavanje integriteta površine true false true Angleški jezik Slovenski jezik Članek v reviji 2026-02-18 13:39:57 2026-02-18 13:40:02 2026-02-21 03:43:49 0000-00-00 00:00:00 2022 0 0 Str. 752-757 Vol. 108 2022 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 621.9 2212-8271 10.1016/j.procir.2022.03.116 113755139 113744643 Rodriguez,_Pusavec..._Effect_of_tool....pdf Rodriguez,_Pusavec..._Effect_of_tool....pdf 1 246945AB12B8173752701AB8A438145F 18b299b572f6dff1a1d60f43c86b862b72a90e64b32f40d103f5f4c97e41b9be d7bd2eda-0cc6-11f1-a1ba-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=228394 https://www.sciencedirect.com/science/article/pii/S2212827122006084 1 b82e9c07-0cc6-11f1-a1ba-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=228392 Fakulteta za strojništvo 0 0 0