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公开(公告)号：EP3281719A1
公开(公告)日：2018-02-14
申请号：EP16776474.5
申请日：2016-03-31
申请人： Hitachi Metals, Ltd.
发明人： MITSUNAGA, Hisashi , FUKUI, Tsuyoshi , TERAMAE, Toshiya , NONOMURA, Toshiaki , MATSUMOTO, Hideki , SHIMOHIRA, Eiji , KOHIKI, Satoshi
摘要： Provided are a hot forging die and a hot forging method which enables to perform necking easily using a radial forging machine, even with difficult-to-work materials used for turbine blades. The hot forging die for hot-forging a rod-shaped forging material by radial forging includes a pair of halved pressing portions between which the forging material is interposed, each of the halved pressing portions having a convex portion having a substantially semicircular cross-section, the convex portion being continuous so as to surround the forging material, wherein each of the halved pressing portions includes a rough processing portion and a finishing portion having a convex portion having a larger curvature radius than the rough processing portion.
摘要翻译： 本发明提供即使用于涡轮叶片的难加工材料也能够使用径向锻造机容易地进行颈缩的热锻模具和热锻造方法。 用于通过径向锻造对棒状锻造材料进行热锻造的热锻模包括一对半锻压制部分，锻造材料置于所述一对半锻压制部分之间，每个对开的压制部分具有大致半圆形横截面的凸起部分， 所述凸部以包围所述锻造材料的方式连续，所述对开按压部分别具有粗加工部和具有比所述粗加工部大曲率半径的凸部的精加工部。
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公开(公告)号：EP3281720B1
公开(公告)日：2020-09-02
申请号：EP16776475.2
申请日：2016-03-31
申请人： Hitachi Metals, Ltd.
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公开(公告)号：EP3281720A1
公开(公告)日：2018-02-14
申请号：EP16776475.2
申请日：2016-03-31
申请人： Hitachi Metals, Ltd.
发明人： MITSUNAGA, Hisashi , FUKUI, Tsuyoshi , TERAMAE, Toshiya , NONOMURA, Toshiaki , MATSUMOTO, Hideki , SHIMOHIRA, Eiji , KOHIKI, Satoshi
摘要： Provided are a hot forging die and a hot forging method which enables to perform even a difficult-to-work material used for a turbine blade can be easily swaged using a radial forging machine. The hot forging die for hot-forging a rod shaped forging material by radial forging includes a pair of halved pressing portions between which the forging material is interposed, each of the halved pressing portions having a smooth surface having a concave shape configured to surround the forging material, wherein the halved pressing portion includes a rough processing portion and a finishing portion, and a width of the finishing portion in a longitudinal direction of the forging material is wider than a width of the rough processing portion.
摘要翻译： 本发明提供一种即使在涡轮叶片中使用的难以加工材料也能够使用径向锻造机容易地进行铆接的热锻模具和热锻造方法。 用于通过径向锻造对棒状锻造材料进行热锻造的热锻模包括一对对开的挤压部分，锻造材料置于所述对开的挤压部分之间，所述对开的挤压部分中的每一个具有包围锻件的凹形形状的光滑表面 材料，其中，所述对开的加压部分包括粗加工部分和精加工部分，并且所述精加工部分在所述锻造材料的纵向上的宽度比所述粗加工部分的宽度宽。
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5.发明公开MANUFACTURING METHOD FOR BLADE MATERIAL AND MANUFACTURING DEVICE FOR BLADE MATERIAL 审中-公开HERSTELLUNGSVERFAHRENFÜREIN KLINGENMATERIAL UND HERSTELLUNGSVORRICHTUNGFÜREIN KLINGENMATERIAL
公开(公告)号：EP2623229A1
公开(公告)日：2013-08-07
申请号：EP11828931.3
申请日：2011-09-22
申请人： Hitachi Metals, Ltd.
CPC分类号： B21K3/04 , B21D53/78 , B21D53/92 , B21J13/10 , Y10T29/49336 , Y10T29/53996
摘要： Provided are a manufacturing method for a blade material and a manufacturing device for a blade material, by which a long blade material can be manufactured without using a large-sized press forging machine. A manufacturing method for a blade material, in which hot forging is sequentially performed by molds from the root side to a blade (vane) tip, wherein when a root-side portion is grasped and a material to be forged is restrained by a mold, twisting is performed on a region between the grasped portion and the restrained portion. A manufacturing method for a blade material, in which hot forging and twisting are repeated, is preferable, and a manufacturing method for a blade material, in which hot forging is performed while molds are sequentially changed, is more preferable.
摘要翻译： 提供了一种叶片材料的制造方法和用于叶片材料的制造装置，通过该方法可以在不使用大型压制机的情况下制造长叶片材料。 一种叶片材料的制造方法，其中通过模具从根侧到叶片（叶片）尖端依次进行热锻，其中当抓握根部侧部分并且通过模具约束待锻造的材料时， 在被夹持部和被约束部之间的区域进行扭转。 优选重复进行热锻加捻的刀片材料的制造方法，更优选在模具顺次变更时进行热锻的刀片材料的制造方法。
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公开(公告)号：EP3281719B1
公开(公告)日：2020-09-23
申请号：EP16776474.5
申请日：2016-03-31
申请人： Hitachi Metals, Ltd.
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公开(公告)号：EP3381579B1
公开(公告)日：2020-03-11
申请号：EP18163950.1
申请日：2018-03-26
申请人： Hitachi Metals, Ltd.
发明人： OHTOYO, Daigo , MATSUMOTO, Hideki
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公开(公告)号：EP3381579A1
公开(公告)日：2018-10-03
申请号：EP18163950.1
申请日：2018-03-26
申请人： Hitachi Metals, Ltd.
发明人： OHTOYO, Daigo , MATSUMOTO, Hideki
摘要： A method of producing a forged product is described, in which a forging component (6) is hot-forged using a lower die (1) and an upper die (2). The method includes a first process in which an die face (3) of the lower die (1) is covered with a first glass lubricant (5); a second process in which the lower die (1) is heated; a third process in which at least a part of the forging component (6) is covered with a second glass lubricant (7); a fourth process in which the forging component (6) is heated to a temperature that is higher than a heating temperature of the lower die (1) in the second process; and a fifth process in which the forging component (6) is placed on the die face (3) and hot forging is performed using the lower die (1) and the upper die (2).
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