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2025-08-16 17:17
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    Mandrel –A mandrel is one of the two primary methods for manufacturing coil springs. This process can be carried out using a lathe, winding machine, or hand crank machine. During production, a guide mechanism ensures that the wire is aligned correctly to achieve the desired pitch, which is the spacing between the coils as they are wrapped.

    Here, G represents the shear modulus of the material, d is the wire diameter, D is the mean diameter of the spring, and N is the number of active coils. These parameters help ensure that the selected material and dimensions provide the necessary stiffness without sacrificing durability.


    When designing coil springs for heavy-duty applications, it is important to consider factors that ensure durability, efficiency, and performance under extreme conditions. Applications demand springs that can withstand high stresses without failing, and so the choice of materials, as well as spring rate, is fundamental to product success.