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首页> 外国专利> METHOD FOR ONE-PASS DIE FORGING THIN-WALLED LARGE-DIMENSIONED OGIVAL-SHAPED SHELLS OF CONE-SHAPED BLANK PARTS MADE OF LOW-DUCTILITY DIFFICULT-TO-FORM STEEL OF 'BHC-16' GRADE

METHOD FOR ONE-PASS DIE FORGING THIN-WALLED LARGE-DIMENSIONED OGIVAL-SHAPED SHELLS OF CONE-SHAPED BLANK PARTS MADE OF LOW-DUCTILITY DIFFICULT-TO-FORM STEEL OF 'BHC-16' GRADE

机译：低硬度难成型钢的圆锥形毛坯薄壁薄壁薄壁薄壁薄壁薄壁薄壁薄壁薄壁薄壁薄壁薄壁薄壁薄壳的一次通过模锻方法

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FIELD: mechanical engineering.;SUBSTANCE: invention refers to the field of mechanical engineering and may be used in forging thin-walled large-dimensioned ogival-shaped shell of cone-shaped blank parts made of difficult-to-form steel or alloy. One-pass forging is performed in the die with gap between mould and punch. Before forging, the flange is formed at the side of blank part larger diametre for clamping it in the mould. Blank part is preheated to temperature derived from the graph of heating temperature versus strength limit of heated blank part by heated blank part strength limit which is determined according to relation in formula.;EFFECT: part manufacturing with minimum efforts, prevention of wall jamming and overheating of blank part made of difficult-to-form alloy.;2 dwg, 1 ex
机译：领域：本发明涉及机械工程领域，并且可以用于锻造由难以成形的钢或合金制成的圆锥形坯件的薄壁大尺寸卵形壳。在模具和冲头之间留有间隙的模具中进行一次锻造。在锻造之前，将法兰形成在较大直径的毛坯部分的侧面，以将其夹紧在模具中。通过根据公式关系确定的加热的毛坯零件强度极限，将毛坯零件预热到加热温度与加热的毛坯零件的强度极限图之间的关系图;效果：以最小的努力制造零件，防止壁堵塞和过热难成型合金制成的毛坯零件的零件; 2 dwg，1 ex

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