In the mold manufacturing sector, high-speed milling and electrical discharge machining (EDM) are two core technologies that are constantly being compared and integrated. This article will examine the advantages and applications of these two technologies, discuss their roles in mold processing, and provide guidance on how to select the appropriate technology based on processing requirements.
The question of whether the development of high-speed milling can replace EDM has been a hot topic in the industry. While high-speed milling has made significant progress in production efficiency and machining accuracy, its application in mold processing still cannot completely replace EDM. EDM possesses unique advantages in processing deep grooves, narrow slots, internal chamfers, clean edge finishes, and intricate, complex, and precise parts, especially in the processing of super-hard materials. With technological advancements, EDM has seen significant improvements in precision and efficiency, achieving mirror-like finishes with Ra values less than 0.1 micron and the development of technologies such as mixed powder EDM for large-area precision processing, expanding its application range.
On the other hand, high-speed milling is an important choice for mold processing due to its high efficiency and precision. It can machine hardened steel components with a hardness of 60HRC and perform cutting after heat treatment, simplifying the mold manufacturing process. High-speed milling is suitable for the majority of mold processing tasks, especially in scenarios where large material removal is required. However, there are still limitations with high-speed milling in processing sharp corners and deep cavities.
The integration of EDM and high-speed milling is an inevitable trend in industry progress. The application of high-speed milling in electrode manufacturing reduces the number of electrode designs, increases production efficiency, and improves electrode precision. They complement each other and promote each other's development, providing a perfect machining solution for the manufacturing of highly complex and precise molds.
In summary, high-speed milling and EDM each have a unique and irreplaceable role in the mold industry. The choice of technology depends on specific processing needs. The combination of both technologies brings higher efficiency and finer machining results to the mold manufacturing industry, pointing the way forward for industry development.
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