Abstract
Metal matrix composites (MMC) have found wide applications in the transportation sector. But, the presence of hard particles in the MMCs causes catastrophic tool failures. The current study presents a method to select process parameters to increase the material removal rate in finish turning of Al-MMC (Al 6061, 5% SiC, 3% C) using TiN coated carbide inserts. The key aspects of the method are (a) Using the fractional factorial method for performing experiments economically (b) Using radial force instead of cutting force (c) Using frame statistics and linear spectrum of the radial cutting force signal to select process parameters. The experiments were conducted on a precision lathe. A 6-component piezoelectric dynamometer was used to measure the cutting force.
Highlights
The automotive sector uses metal matrix composites (MMCs) to improve fuel economy and performance of the vehicle [1]
Use optimization techniques to select process parameters based on an objective like maximum material removal rate, lowest machining time or maximum tool life. [5,6,7,8]
In the case of finish turning, as the cutting forces are low, the current study uses radial force, which is more sensitive to vibrations due to the impact of hard particles in MMCs
Summary
The automotive sector uses metal matrix composites (MMCs) to improve fuel economy and performance of the vehicle [1]. For increasing material removal rate in machining MMC, analysis of the process and selection of process parameters is essential. 2. Measure the process output using average cutting force, surface roughness or tool wear[3,4]. 3. Use optimization techniques to select process parameters based on an objective like maximum material removal rate, lowest machining time or maximum tool life. Box et al [10], mentions the key limitation of Taguchi method as picking an optimum based on one shot experiment They suggest the use of limited runs and using graphical analysis as a better approach for initial experimentation. In the case of finish turning, as the cutting forces are low, the current study uses radial force, which is more sensitive to vibrations due to the impact of hard particles in MMCs
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
