Tech Front
theoretical improvement or demonstrating a new, nontrivial contribution to practice or policy.
While access to SME journal papers is generally fee-based and member-restricted, several of the new articles in Manufac- turing Letters are available free of charge until June 2014. For more information on submissions, subscriptions and member access to all SME journals, go to
www.sme.org/journals. In the paper (
http://tinyurl.com/Zhang-Jun) by Y. Zhang and M.B.G. Jun of the University of Victoria (Victoria, BC), a new system delivers independently atomized water and oil for effective cooling and lubrication in micromilling, where rapid tool wear is a significant problem. The system requires no sur- factant or emulsifiers because water and oil are mixed in the air. Better cutting performance was observed when a water and oil mixture was used, compared to water only, oil only and conventional cutting fluid. The results also show strong poten- tial for effectively tailoring oil and water amounts for different materials and cutting conditions.
abrasives were found suitable to finish the coatings with a satisfactory morphology, and the process did not have a significant impact on dimensional properties. The feasibility of a haptic position approach to measure the shape of soft and compliant objects with a hand-held magnetic sensor is demonstrated by University of Michigan (Ann Arbor, MI) researchers R. Chen, Y. Wang, B. Tai and A. Shih (http://
tinyurl.com/Roland-Chen). Applications of the haptic position measurement system (HPMS), when complex geometries preclude use of conventional CMMs, include measuring the deflection of thin guide wire and needle insertion into soft tissue, deformation of tissue during surgical manipulation and displacement of compliant mechanisms.
AFB (abrasive fluidized bed) finishing is a promising technique in the reprocessing of hard coatings. M. Barletta and colleagues from Italy applied AFB to finish axial-sym- metric workpieces coated by high-velocity oxygen fuel with a cobalt-chromium alloy (
http://tinyurl.com/Barletta-et-al). Al2
O3
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