Lubrication Mechanism of Various Water-based Metallic-Cation Additives in Machining of Titanium Alloys
钛合金加工中不同金属离子添加剂的润滑机理研究

Various metal cations, including Na +, K +, Ca 2+ , and Ba 2+ , were introduced into water based load carrying additives by molecular modification. The machining efficiencies of the water based cutting fluid containing these additives were evaluated in tapping torque test of Ti 6Al 4V alloy. The morphology of the machined Ti alloy surface was examined with a scanning electron microscope. The chemical states of various elements on the machined Ti alloy surface were investigated by means of X ray photoelectron spectroscopy. It has been found that Ba containing additive shower the best tapping efficiency and surface quality.