Edm has the following advantages:
1. High precision machining: to achieve micron level to sub-micron level machining accuracy.
2. No contact processing: will not cause mechanical stress on the surface of the workpiece.
3. Can process complex shapes: suitable for processing complex shapes of the workpiece.
4. Wide applicability: It can process all kinds of metal materials, including difficult materials.
5. Low thermal impact: Avoid thermal deformation and residual stress.
6. High efficiency: It can process multiple workpieces at the same time to improve production efficiency.