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Spring Steel Used in Precision Machining Service

Spring steel, a type of high-carbon or low-alloy steel with unique properties suitable for spring applications, is not commonly used in traditional CNC machining due to its hardness. However, CNC machining processes such as wire EDM (Electrical Discharge Machining) or waterjet cutting can be employed for cutting and shaping spring steel. Here are key points regarding the use of spring steel in CNC machining:

Material Overview:

  • Spring steel is characterized by its high yield strength, resilience, and ability to return to its original shape after deformation. It is often used for manufacturing various types of springs, including coil springs, flat springs, and other components requiring elasticity.

Applications in CNC Machining:

  1. Spring Manufacturing: Spring steel is primarily used for manufacturing different types of springs, such as those found in automotive suspension systems, mechanical devices, and industrial applications.

CNC Machining Processes for Spring Steel:

  1. Wire EDM (Electrical Discharge Machining): Wire EDM can be used for precision cutting of spring steel. It involves the use of a thin, electrically charged wire to cut through the material with high precision.

  2. Waterjet Cutting: Waterjet cutting is another method suitable for cutting spring steel. It utilizes a high-pressure stream of water mixed with abrasive particles to cut through the material.


  • Hardness: Spring steel is known for its hardness, which can pose challenges for traditional CNC machining processes like milling or turning. Specialized methods like wire EDM or waterjet cutting are often more suitable.

  • Heat Treatment: Spring steel may undergo heat treatment processes to achieve the desired mechanical properties. Considerations should be made for the material's heat-treated state when choosing cnc machining process.

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