Although the abrasive reinforcement in MMCs primarily controls their machining behavior, the properties of the matrix also exert an influence. A 1200 W diode laser was used, due to the large footprint (5×0.3 mm) and the short wavelength (0.94 μm) to pre-treat a 2618 (18% SiC) alloy. The laser heating and self-quenching of the material modified the matrix properties. Machining performance was then assessed by measuring tool wear and edge condition, cutting forces, surface finish, and sub-surface damage. Results indicated that pre-treatment gave less wear, lower forces, and less sub-surface damage although abrasion remained the primary wear mechanism.
Effect of Laser Pre-Treatment on the Machining Performance of Aluminum/SiC MMC
Contributed by the Materials Division for publication in the JOURNAL OF ENGINEERING MATERIALS AND TECHNOLOGY. Manuscript received by the Materials Division January 10, 2003; revision received June 17, 2003. Associate Editor: A. Pelegri and A. Karlsson.
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Barnes , S., Morgan , R., and Skeen, A. (September 22, 2003). "Effect of Laser Pre-Treatment on the Machining Performance of Aluminum/SiC MMC ." ASME. J. Eng. Mater. Technol. October 2003; 125(4): 378–384. https://doi.org/10.1115/1.1605112
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