Special material processing mainly includes the following methods:
Electrical Discharge Machining (EDM): EDM uses the electro-erosion effect generated by pulse discharge between two electrodes to remove conductive materials. It is suitable for processing conductive materials with high hardness, high strength, high toughness and high brittleness, especially for complex-shaped workpieces and precision small cavities, narrow slits, grooves and other parts that are difficult to process by traditional cutting methods.
Laser Machining (LBM): Laser machining uses a laser beam to irradiate the material, causing it to melt and vaporize instantly, thereby achieving processing. Laser machining is suitable for metal and non-metal materials, and has the characteristics of non-contact machining and no tool wear. It is often used for micro-holes, cutting, welding and heat treatment, etc..
Ultrasonic Machining (USM): Ultrasonic machining uses the end face of the tool with ultrasonic vibration to make the abrasive suspended in the working fluid rush to the working surface to remove the surface material of the workpiece. It is suitable for processing high-hardness materials and complex hole cavities, and has the characteristics of small force and small thermal impact.
The characteristics of these special processing methods include:
Non-contact processing: Both EDM and laser processing are non-contact processing, which avoids direct contact between the tool and the workpiece, reduces force deformation and tool wear.
Wide range of application: EDM is suitable for various conductive materials, laser processing is suitable for metal and non-metal materials, and ultrasonic processing is suitable for brittle materials.
High processing accuracy: These methods have a small heat-affected range during the processing process and are suitable for precision processing, especially for the processing of complex-shaped workpieces.