Titanium alloys are widely used in military equipment because of theirs excellent physical properties, such as corrosion resistance, heat resistance, fatigue resistance, and high specific strength. However, the hardness and strength of titanium alloy are high, and the coefficient of thermal conductivity is poor, so the cutting performance is poor. The influence of solid lubricant on the parameters of the process of diamond grinding of hard-to-cut material – titanium alloy VT22 was studied. The evaluation was carried out on the basis of the surface roughness parameter Ra and the postcontact temperature Tpc. It has been established that the use of a solid lubricant based on stearic acid (65%) and molybdenum disulfide (35%) reduces the post-contact temperature by 1.4 ... 2.1 times and the roughness by 1.3 ... 1, 6 times in comprising with results under dry grinding conditions. Solid lubricant has an ambiguous effect on the grinding performance of VT22 depending on transverse feed. It may be linked up to state transition of stearic acid and growth its surface activity. The best results on the surface quality with solid lubrication were achieved under grinding with cutting speed Vc = 25 m/s and transverse feed f = 0.005 mm/double pass.
The influence of hard lubrication on the processes of diamond grinding (DG) and diamond spark grinding (DSG) of hard-working materials - hard alloy VK6, titanium alloy VT22 and heat-resistant stainless steel 10H11N23T3MP was studied. The conditions of the performed experimental researches are described. The evaluation was performed according to the parameters of the surface roughness parameter Ra of the postcontact temperature Tpk. It was found that the use of solid lubricants (SL) based on stearic acid (65%) and molybdenum disulfide (35%) reduces 1.4… 2.1 times post-contact temperature and roughness 1.3… 1.6 times with diamond grinding of alloy VT22 and steel 10Х11Н23Т3МР. At DSG the character of influence of SL on Ra and Tpk does not change, but their absolute values increase in 1,1… 1,5 times.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.