Technology

Li-Hsing specializes in manufacturing low to medium volume, complex forged products. Our engineering team design and develop die according to our customer's specification. We employ cold forging process to manufacture our products. Cold forged products have superior finish and diemensional accuracy, and provide significant material cost saving. We use modern metallurgical processes to manufacture products with superior mechanical properties while protecting the forging die against deterioration during the cold forging process.

Forged Product Design & Development

Our engineers can develop die that precisely matches our customer’s specification. Our engineers can accurately analyze metal forming and heat treatment process to ensure that the die can be used for mass production. Our engineers ensure our forged products meets our customer’s requirement.

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Cold Forging

Cold Forging is a cold working process by which metal is shaped at room temperature. Cold forging offers significant advantages over hot forging because cold forged product is directly shaped without heat expansion and cold contraction, and thus a cold forged product has superior surface finish and dimensional accuracy. Manufacturing products through cold forging process provides significant material saving and offers very high production rates.

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Annealing and Normalizing

After a material is shaped with cold forging press, undesirable residual stress in the material may be introduced. Annealing is a heat treatment process used to relieve internal stresses, induce ductility, and improve the mechanical properties of cold forged products.

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Surface Treatment

Before a material is shaped with cold forging press, the material undergoes surface treatment processes to preserve the life of the forging die and ensure dimensional accuracy of the forged product.

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