FIELD: plastic metal working, possibly manufacture of constructional members of upper structure of railway road. SUBSTANCE: method comprises steps of cutting rolled sheet by predetermined-width strips; placing strip in die set for cold blanking of spring from it along outer diameter; cold shaping for making spring profile with predetermined conicity angle and punching hole for tightening bolt. All forming operations may be realized during one pass of movable members of die set. Supporting surface of spring arranged in base of cone is rounded. EFFECT: enhanced strength characteristics of springs, lowered energy consumption for their manufacture. 3 cl, 2 dwg, 1 tbl
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Authors
Dates
2001-11-10—Published
2000-11-15—Filed