Abstract
Sustainable machining of titanium alloys have deficiency of studies on the built-up edges over the cutting tools and temperature correlation in minimum quantity cooling lubrication (MQCL) environment. Researchers focused on experimentation in dry, wet, and MQL (minimum quantity lubrication) conditions to analyze surface finish, cutting forces, and metal removal rates. This work focuses on the study of cutting parameters effects on temperatures and tool wear analysis by consideration of individual response and their optimality basing on signal-to-noise ratios. Efficacy of process parameters on wear of tool and temperatures requires a comprehensive understanding. An elaborated tool wear analysis is carried based on the microscopic flank wear investigations. Machining of Ti-6Al-4V alloy is carried in the environment of MQCL in form of mist using semi-synthetic fluid. Correlation study of tool wear with regard to temperatures is analyzed and regression models generated on tool wear and cutting temperatures individually showed 83% of goodness-of-fit and correlation regression is 85%.
Highlights
Metal cutting industries deprive of the cutting tool wear and tear studies for better production efficiencies and optimum costs
It is trend observed is with elevated parameters of speed, feed and depth of cut increase the cutting temperatures are increased in minimum quantity cooling lubrication (MQCL) cutting condition
From the experimental recordings, it can be inferred that the MQCL in form of mist is better suitable for machining of hard alloys at low to moderate cutting velocities in providing cooling effect as well as lubrication function by the water based synthetic lubricant;
Summary
Metal cutting industries deprive of the cutting tool wear and tear studies for better production efficiencies and optimum costs. (Rahman, Sun, Wang & Dargusch, 2012) in their work on titanium alloys machining reported the temperature in cutting zone vicinity was as high as 8000c during machining of β-titanium alloy Ti-6Cr-5Mo-5V-4Al. It is imperative to use lubricants in huge quantity to keep the work-piece and cutting tool interaction zone cool. It is imperative to use lubricants in huge quantity to keep the work-piece and cutting tool interaction zone cool Contrary, such high volume lubricant application results in unsustainable practices such as cost parameter escalation, pollution, machining workmen safety are issues. Sustainable machining of hard and low-machinability materials like Titanium alloys, have deficiency of studies on the cutting tools wear mechanisms and temperature correlation in Minimum Quantity Cooling lubrication (MQCL) environment. Correlation study of tool wear with regard to temperatures is analyzed for each and every experimental run
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