Online prediction method of tool-electrode consumption and prediction method of machining accuracy
AssigneeMetal Industries Research & Development Centre
InventorsChia-Ming Jan, Wen-Chieh Wu
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Abstract
An online prediction method of tool-electrode consumption adapted for an electrical discharge machining (EDM) apparatus includes an experimental design; extracting electrode consumption variables from machining parameters of the electrical discharge machining (EDM) apparatus; and obtaining a correlation between the machining parameters and the electrode consumption variables through a correlation analysis to obtain a prediction model capable of predicting an effective contact area of a tool-electrode and a workpiece. In addition, a prediction method of machining accuracy is provided.
Claims12
An online prediction method of tool-electrode consumption, adapted for an electrical discharge machining (EDM) apparatus, comprising:
- an experimental design;
- extracting electrode consumption variables from machining parameters of the electrical discharge machining (EDM) apparatus, wherein the electrode consumption variables comprise times of effective discharge, a machining depth, and accumulated machining time, the EDM apparatus has a main shaft and a tool-electrode disposed on the main shaft to perform electrical discharge machining on a workpiece through the tool-electrode,
- obtaining a correlation between the machining parameters and the electrode consumption variables through a correlation analysis to establish a prediction model capable of predicting an effective contact area of a tool-electrode and the workpiece,
- adjusting the machining parameters based on the predicted effective contact area, and
- controlling the electrical discharge machining apparatus based on adjusted machining parameters.
Dependencies are inferred from the claim text.