Cutter path orientations when high-speed finish milling inclined hardened steel |
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Authors: | C.K. Toh |
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Affiliation: | (1) University of Birmingham, School of Engineering (Mechanical), Edgbaston Park Road, Birmingham, B15 2TT, UK;(2) Present address: Singapore Institute of Manufacturing Technology, Machining Technology Group, 71 Nanyang Drive, Singapore, 638075, Singapore |
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Abstract: | The use of high-speed milling (HSM) for the production of moulds and dies is becoming more widespread. Critical aspects of the technology include cutting tools, machinability data, cutter path generation and technology. Much published information exists on cutting tools and related data (cutting speeds, feed rates, depths of cut, etc.). However, relatively little information has been published on the evaluation of cutter paths for this application. Most of the research focuses on cutter path generation with the main aim on reducing production time. Work concerning cutter path evaluation and optimisation on tool wear, tool life and relevant workpiece machinability characteristics are scant. This paper investigates and evaluates the different cutter path orientations when high-speed finish milling inclined hardened steel, at a workpiece inclination angle of 75°. The results demonstrate that employing a vertical downward orientation achieved the longest life. However, in terms of workpiece surface roughness, vertical upward orientation is generally preferred. |
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Keywords: | Cutter path orientations Hardened steel High-speed milling |
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