Plastics Technology
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High-Density Graphite Material Engineered for Precision Spline Machining

Eastec 2025: MWI’s EC-15 high-performance graphite is a high-density material known for its excellent properties, making it well suited for manufacturing components that require high precision and reliability.

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Source | MWI

MWI’s EC-15 high-performance graphite material is engineered for precision machining in demanding moldmaking applications. This graphite electrode is used to burn an involute spline detail on a 4140 steel plastic injection mold. Designed for the automotive industry, this process plays a critical role in manufacturing components that require high precision and reliability.

EC-15 is a high-density graphite material known for its superior properties, including enhanced electrode life, improved surface finishes and excellent flexural strength. These attributes make it well suited for machining intricate geometries and complex shapes. In applications like involute spline cutting, the durability of EC-15 enables extended electrode use while maintaining consistency and accuracy in production.

Graphite electrodes are essential in electrical discharge machining (EDM), where precision is a necessity. MWI’s EC-15 graphite ensures that spline cutting is efficient, thereby reducing material waste and improving machining performance. The ability of EC-15 to withstand high temperatures and maintain structural integrity makes it an optimal solution for industries requiring intricate and high-tolerance machining.

By using EC-15 graphite for electrodes, shops can achieve faster production cycles, reduced electrode wear and excellent surface finish. MWI’s expertise in graphite machining helps ensure reliable, high-performance solutions for the most demanding applications.

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