EngineeringManufacturing EngineeringMaterials EngineeringAdditive ManufacturingMaterials ProcessingMicrofabricationMachiningMicrofabrication MaterialsMicrofabrication ProcessesMicromachiningGrinding Surface QualityMachining ProcessesMachining TechnologyMachining-induced RoughnessMicro-electro-discharge MachiningPulse Generator CircuitsThickness Control
This paper presents the application of micro wire electrical discharge machining (micro wire-EDM) for profile roughing and final dressing of polycrystalline diamond (PCD) wheels using a specific pulse generator. The pulse generator using anti-electrolysis circuitry and digital signal processor based pulse control circuit was developed to suppress damages on the machined surface of PCD while achieving stable machining. In comparison with wire-EDM, micro wire-EDM could achieve better surface quality and smaller thickness of damaged layer for the fabrication of PCD wheels. A grinding-edge thickness of 3 m could be sharpened by micro wire-EDM compared with an edge-thickness of 6 m for wire-EDM. Experimental results have verified the applicability of micro wire-EDM for the fabrication of PCD wheels.
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Precision Cutting of Aspherical Ceramic Molds with Micro PCD Milling Tool
Hirofumi Suzuki, Taro Moriwaki, Y. Yamamoto et al. · CIRP Annals · 2007 · 132 citations
Engineering, Manufacturing Engineering, Materials Engineering +16
V.R. Howes · Proceedings of the Physical Society · 1962 · 89 citations
Natural Sciences, Materials Engineering, Materials Science +5