The Influence of Machined Surface Microgeometry on Mechanical Hydraulic Removal Mechanism at Ultrasonically Aided EDM Finishing

[摘要] The paper deals with Finite Element Method (FEM) of mechanical-hydraulic component of material removal mechanism at electrical discharge machining aided by ultrasonics (EDM+US) finishing. The influence of two types of crater shapes - produced by commanded and relaxation pulses - is analyzed. Based on FEM results, the ratio between depth and crater diameter is correlated with the consumed power on ultrasonic chain in order to minimize the EDMed surface roughness.

[发布机构] Polytehnic University of Bucharest, 313 Splaiul Independentei, Bucharest, Romania^1;Technical Educational Institute of West Macedonia, Koila, Kozani, Greece^2

[效力级别] 能源学

[关键词] Crater diameter;Crater shapes;Electrical discharge machining;Hydraulic components;Machined surface;Material removal mechanisms;Removal mechanism