High fatigue strength is effective! Suppresses chipping at the apex.
The "DURO series" includes mold steels that consist of high-speed steel, matrix high-speed steel, and hot work die steel, with a total of 8 steel types in the lineup. Here we introduce an example of use for the high toughness type matrix high-speed steel "DURO-F7." 【Example of Use】 Forming Rack (m0.5×PA20°) ■ Workpiece: Automotive parts shaft (S55CV, 22–28HRC) ■ Material Type Used: DURO-F7 <Conventional Material Type: Matrix High-Speed Steel (62HRC, ion nitriding treatment), lifespan affected by cracks> ■ Hardness: 62HRC ■ Surface Treatment: Ion Nitriding Treatment ■ Lifespan (Number of Shots): 50% increase (due to cracks) ◎ Suppresses chipping at the tooth tip ◎ The high fatigue strength of DURO-F7 is effective *For more details, please refer to the PDF document or feel free to contact us.
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【Features of DURO-F7】 ■ Combines hardness of 64HRC or higher with high toughness ■ Has wear resistance comparable to SKH51 ■ Excellent fatigue strength achieved through special melting process *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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Nachi-Fujikoshi contributes to the development of the manufacturing world through its machining business, including machine processing and robotics, its functional components business, including bearings and hydraulic equipment, and its materials business, including materials and heat treatment.