EDM Die Sinking Machine - Core Equipment for Precision Mold Manufacturing

In modern manufacturing, the processing level of precision molds is directly related to product quality and production efficiency. Among the many mold processing technologies, the EDM die sinking machine has become an indispensable key equipment in the mold manufacturing field due to its advantages of high precision and strong processing capabilities for complex cavities.
The equipment is mainly used to process high-hardness materials such as hardened steel, cemented carbide, graphite, etc. that are difficult to process by traditional cutting methods. It is particularly suitable for precision processing of mold cavities such as injection molds, die-casting molds, and forging molds.
The working principle of EDM Die Sinking Machine is based on the spark discharge corrosion effect:
The electrode (usually copper or graphite) and the workpiece are connected to the two poles of the power supply respectively;
A high-frequency pulse voltage is applied between the two, and a discharge channel is formed in the insulating liquid (usually deionized water or special oil);
The discharge instantly generates high temperature (up to 8000℃ or more), causing the local metal to melt and evaporate, thereby achieving material removal;
The CNC system controls the electrode movement trajectory and gradually "carves" the required complex cavity structure.
The whole process does not require direct contact, so no mechanical cutting force is generated, which is suitable for processing tasks with micron-level precision requirements.
EDM Die Sinking Machine's core advantages
Complicated cavities can be processed
It can easily complete the processing of deep cavities, narrow slits, special-shaped contours and other structures that cannot be achieved by traditional milling.
High-precision processing capabilities
The processing accuracy can reach ±1 to 3 microns, and the surface roughness Ra value can be lower than 0.2μm.
Suitable for high-hardness materials
Can directly process materials such as hardened steel and cemented carbide, eliminating the process of secondary processing after heat treatment.
No cutting stress influence
Non-contact processing method avoids material deformation problems and improves mold life.
High degree of automation
Modern EDM equipment is equipped with automatic electrode replacement, automatic trimming, automatic tool setting and other functions to improve processing efficiency.
Wide range of applications
Mold industry: used for automotive cover molds, electronic plastic molds, medical equipment molds, etc.;
Aerospace: used for complex structure processing such as turbine blade cooling holes and engine parts;
Watches and jewelry: production of micro precision parts and decorative textures;
Electronic components: used for the manufacture of high-precision parts such as micro connectors and sensors.
With the development of intelligent manufacturing and high-end manufacturing, EDM Die Sinking Machine is evolving towards higher precision, higher speed and higher automation. It not only promotes the advancement of mold manufacturing technology, but also provides strong process guarantees for aerospace, medical, electronics and other high-precision fields.
Choosing an EDM forming machine with superior performance is not only a key step for enterprises to improve their processing level, but also an important support for the new era of intelligent manufacturing. In the future, EDM technology will continue to play an irreplaceable role in the precision manufacturing stage with its unique advantages.