Explore the difference between EDM machine and CNC machine tools

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EDM machine (Electric Discharge Machining) and CNC (Computer Numerical Control) machine tools are two common types of machine tools in modern manufacturing. They have obvious differences in processing principles, scope of application, and processing accuracy. This article will introduce these two machine tools in detail in terms of principles, applications, advantages and disadvantages, etc.

EDM machine

First, let's learn about EDM machines. EDM machine is a machine tool that uses the principle of electric spark discharge for processing. Its working principle is to apply a voltage between the workpiece surface and the electrode to form an electric field, causing spark discharge to occur in the metal material on the workpiece surface, thereby corroding, melting, or oxidizing the metal material, and ultimately processing the workpiece. EDM machine is suitable for processing hard, brittle, and high-hardness materials, such as molds, titanium alloys, etc. Because its processing process is not limited by the hardness of the workpiece, it has unique advantages in some specific processing situations.

Corresponding to this is the CNC machine tool. The CNC machine tool is a machine tool controlled by a computer numerical control system. Its working principle is to control the cutter or workpiece table on the machine tool to perform various movements through pre-programmed instructions, thereby realizing the control of the workpiece. processing. CNC machine tools are suitable for processing various materials, including metal, plastic, wood, etc., and are widely used in automobile manufacturing, aerospace, mold manufacturing, and other fields.

In terms of processing accuracy, EDM machines are usually able to achieve very high processing accuracy and are especially suitable for processing tasks with high requirements on the surface shape and size of the workpiece. CNC machine tools can also achieve higher processing accuracy, but they may be subject to certain limitations when processing hard materials.

In addition, the EDM machine's processing process does not produce mechanical stress, so it is suitable for processing tasks with higher requirements on workpiece materials. CNC machine tools will generate certain mechanical stress during processing, so they may not be suitable in some situations that require higher material performance.

In terms of processing efficiency, CNC machine tools are usually able to achieve high processing efficiency, especially suitable for mass production. The EDM machine is usually slow during processing and is suitable for occasions where the processing speed requirements are not particularly high.

To sum up, there are obvious differences between EDM machines and CNC machine tools in terms of processing principles, scope of application, processing accuracy, and processing efficiency. Choosing the appropriate machine tool type requires comprehensive consideration based on specific processing requirements and workpiece characteristics. I hope this article can help readers better understand these two machine tool types and make wise choices in actual production.

https://www.jsxlskcnc.com/Explore-the-difference-between-EDM-machine-and-CNC-machine-tools.html

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