Contribute to improving fatigue strength and rust resistance, as well as achieving uniform stress! Please utilize this for lightweighting methods.
At Sumihatsu Co., Ltd., we handle "taper leaf springs." We are capable of processing ultra-thick taper leaves. Additionally, through high hardening and enhanced stress peening, we aim to improve fatigue strength. By reducing the weight of the laminated leaf springs, we can achieve cost reductions, and the decrease in the number of leaves allows for a reduction in inter-leaf friction. 【Features】 ■ Using a pull-forming type rolling mill, we can achieve uniform stress or constant deflection rolling. ■ We can accommodate plate thicknesses of up to 50mm. ■ High hardening and enhanced stress peening improve fatigue strength. *For more details, please refer to the PDF materials or feel free to contact us.
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【Structure】 1. Design the tapered shape to ensure uniform stress or constant deflection. 2. Implement various measures against risks associated with increased hardness. - Fretting prevention (center spacer), stress concentration relief (center hole shape), rust prevention measures (zinc-rich coating). *For more details, please refer to the PDF document or feel free to contact us.
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For more details, please refer to the PDF document or feel free to contact us.
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Sumihatsu Co., Ltd. is a company that manufactures and sells automotive leaf springs, industrial machine coil springs, railway facility products, and more. Sumihatsu anticipates customer needs and continues to propose high-quality, value-added products. To achieve this, we will integrate the vitality and technical skills of each employee and continue to advance as the best partner for our customers.