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

20th Innovative Manufacturing Engineering and Energy Conference

机械制造;能源学

Ghiculescu, D.^1 ; Marinescu, N.^1 ; Ganatsios, S.^2 ; Popa, L.^1 ; Seritan, G.^1

Polytehnic University of Bucharest, 313 Splaiul Independentei, Bucharest, Romania^1

Technical Educational Institute of West Macedonia, Koila, Kozani, Greece^2

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

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/161/1/012013/pdf
DOI  :  10.1088/1757-899X/161/1/012013

来源: IOP

【 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.