Surface treatment method and surface treatment device
AssigneeYasunaga Corporation
InventorsYosuke KIRYU, Yasuhiro TAWA, Tomohisa KATOU
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Abstract
A machining electrode (30) having a circular shape in plan view and an outer diameter equal to or larger than an outer diameter of a workpiece is positioned above the workpiece so that the machining electrode (30) partially overlaps the workpiece in plan view. The workpiece is rotated about a first central axis (X1); the machining electrode (30) is rotated about a second central axis (X2); and discharge is caused between the machining electrode (30) and the workpiece with both the workpiece and the machining electrode (30) being rotated.
Claims10
A surface treatment method for performing electrical discharge machining on a surface of a disc-shaped workpiece using a machining electrode,
- the machining electrode having a circular shape in plan view and an outer diameter equal to or larger than an outer diameter of the workpiece, the method comprising:
- positioning the machining electrode above the workpiece so that the workpiece and the machining electrode partially overlap each other in plan view;
- rotating the workpiece about a central axis of the workpiece;
- rotating the machining electrode about a central axis of the machining electrode;
- and
- discharging between the machining electrode and the workpiece, with both the workpiece and the machining electrode being rotated.
A surface treatment device configured to perform electrical discharge machining on a surface of a disc-shaped workpiece, the device comprising:
- a table on which the workpiece is placed and held;
- a machining electrode having a circular shape in plan view and an outer diameter equal to or larger than an outer diameter of the workpiece;
- a first rotator configured to rotate the workpiece about a central axis of the workpiece;
- a second rotator configured to rotate the machining electrode about a central axis of the machining electrode;
- and
- a controller electrically connected to the machining electrode, the first rotator, and the second rotator, wherein
- the controller causes the first rotator to rotate the workpiece and causes the second rotator to rotate the machining electrode, with the workpiece and the machining electrode partially overlapping each other in plan view to perform the electrical discharge machining.
Dependencies are inferred from the claim text.