Turning Studies on A356-TiB2/TiC In Situ Reinforced Composites
In the past one decade, in situ composites have received the widespread attention from many researchers due to improved mechanical properties through reinforcing with a lower volume fraction of ceramic particulates. The present study deals with the synthesis of A356-TiB2/TiC composites by reacting with the K2TiF6-KBF4-graphite, characterization and machinability behaviour of the synthesized composites. Cutting speed, cutting depth and tool feed rate are selected as turning parameters to conduct an experimental investigation. Cutting force, surface waviness and flank wear are considered to appraise the machinability behaviour. Multi-coated tungsten carbide tool is used for machining study, and Taguchi L16 orthogonal layout is followed to conduct the experimentation. This study is aimed to optimize the turning parameters to minimize the cutting force, surface waviness and flank wear by means of composite desirability grade approach. The analysis of variance (ANOVA) is conducted for composite desirability grade to recognize the influence of each turning parameter upon the responses.
KeywordsIn situ composites Characterization Turning Cutting force Flank wear Surface waviness Multi-response optimization
The authors are gratefully acknowledged for providing the measuring equipment from Science and Engineering Research Board, Department of Science and Technology, New Delhi, under Young Scientist Scheme (Ref. No. SB/FTP/ETA-0190/2014).
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