Why does EDM improve the processing accuracy of precision injection molds?
Electric Discharge Machining (EDM), or spark machining, is a manufacturing process that uses electrical discharges to remove material from a workpiece. Due to its unique advantages, EDM has become indispensable in the precision injection molding industry.
Why does EDM improve the processing accuracy of precision injection molds?
1. Processing of complex shapes:
Tiny holes and slits: EDM can easily process tiny holes, slits, and other complex shapes that are difficult to achieve with traditional cutting processes, meeting the mold's requirements for fine structures.
Sharp corners and chamfers: EDM can achieve precise processing of sharp corners and chamfers on molds, avoiding chipping and burrs caused by traditional processing methods.
2. Processing of hard materials:
High hardness and toughness: Since there is no direct contact between the tool and the workpiece in EDM, it can process materials with high hardness and toughness, such as cemented carbide and hardened steel, which are commonly used in precision molds.
3. No cutting force, reducing workpiece deformation:
Avoiding tool marks: As there is no cutting force during the EDM process, no tool marks are produced, ensuring the quality of the processed surface.
4. High precision and high surface finish:
Good surface quality: EDM can obtain a high-quality surface finish, reducing the mold's surface roughness and improving product quality.
