Abstract
Modern machining processes are now focused on machinability aspects of brittle and hard to machine materials. As per concerns raised in the field of machinability of brittle materials, the prime obstacle in the process is their hardness. Such car** issues can be suppressed through a bit increase in softness of the brittle materials. Therefore, heating of such material can raise the bar for the softness in such materials so as to their machinability. But the localized heating leads to a higher temperature gradient between heated and non-heated regions of the work material so as the thermal stresses in it which results into micro- as well as macro-cracks. Such deplorable issues can be solved through bulk heating of the work materials. Apparently, the comparisons of their softness can be examined through the scratch tests performed at different temperatures. In the view of above elucidation, 45S5 bioglass samples have been used for micro scratch tests as well as a portable heating setup is used to heat those samples. The temperature values are kept between room temperature (27 ℃) and 420 ℃ during the performed tests. Subsequently, traction force, coefficient of friction during the scratch tests and scratch images are compared as the elucidated outcome softness of the material. It is found that there is a significant reduction in traction forces and coefficient of frictions during tests with rise in the sample temperature.
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Singh, J.K., Rao, U.S., Pyare, R. (2023). Study of Traction Forces at Elevated Temperatures During Micro-Scratch Tests on 45S5 Bioglass. In: Maurya, A., Srivastava, A.K., Jha, P.K., Pandey, S.M. (eds) Recent Trends in Mechanical Engineering. Lecture Notes in Mechanical Engineering. Springer, Singapore. https://doi.org/10.1007/978-981-19-7709-1_57
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DOI: https://doi.org/10.1007/978-981-19-7709-1_57
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