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公开(公告)号：US20180099325A1
公开(公告)日：2018-04-12
申请号：US15562051
申请日：2016-03-15
发明人： Naofumi NAKAMURA , Yudai YAMAMOTO
IPC分类号： B21D22/28
CPC分类号： B21D22/28
摘要： A formed material 1 having a cylindrical trunk portion 10 and a flange portion 11 formed at an end section of the trunk portion is manufactured by performing multi-stage drawing of a material metal sheet. Multi-stage drawing includes: preliminary drawing that forms, from a material metal sheet 2, a preform 20 having a trunk element 20a; compression drawing that is performed at least once after the preliminary drawing and that forms the trunk portion 10 by drawing the trunk element 20a while applying a pressure-adjustable compressive force to the trunk element 20a; and finish-ironing that is performed for securing dimensional precision at least once following the compression drawing.
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公开(公告)号：US20160207085A1
公开(公告)日：2016-07-21
申请号：US14769669
申请日：2014-05-14
发明人： Naofumi NAKAMURA , Yudai YAMAMOTO , Jun KUROBE
IPC分类号： B21C1/22
摘要： A formed material is manufactured by performing forming including at least one drawing-out process and at least one drawing process performed after the drawing-out process. A punch 31 used in the drawing-out process is formed to be wider on a rear end side than on a tip end side. By pushing a raw material metal plate into a pushing hole 30a together with the punch 31, ironing is performed on a region of the raw material metal plate corresponding to a flange portion.
摘要翻译： 通过进行包括至少一个拉出工序和在拉出工序之后进行的至少一个拉拔加工的成形来制造成形材料。 在拉出工序中使用的冲头31在后端侧比前端侧形成得更宽。 通过将原料金属板与冲头31一起推入推动孔30a中，在对应于凸缘部的原料金属板的区域上进行熨烫。
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公开(公告)号：US20160001349A1
公开(公告)日：2016-01-07
申请号：US14768866
申请日：2013-07-10
发明人： Naofumi NAKAMURA , Yudai YAMAMOTO , Jun KUROBE
IPC分类号： B21J13/02
摘要： An ironing mold according to the present invention includes a punch that is inserted into a formed portion, and a die having a pushing hole into which the formed portion is pushed together with the punch. An inner peripheral surface extends non-parallel to an outer peripheral surface of the punch, and the inner peripheral surface is provided with a clearance that corresponds to an uneven plate thickness distribution, in the pushing direction, of the formed portion prior to the ironing relative to the outer peripheral surface to ensure that an amount of ironing applied to the formed portion remains constant in the pushing direction.
摘要翻译： 根据本发明的熨烫模具包括插入到成形部分中的冲头和具有推动孔的模具，所述成形部分与冲头一起被推入其中。 内周表面不平行于冲头的外周表面延伸，并且内周表面设置有相应于在熨烫之前的成形部分的推压方向上的不平坦板厚度分布的间隙 以确保施加到成形部分的熨烫量在推动方向上保持恒定。
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公开(公告)号：US20190232352A1
公开(公告)日：2019-08-01
申请号：US16381550
申请日：2019-04-11
发明人： Naofumi NAKAMURA , Yudai YAMAMOTO , Jun KUROBE
摘要： A formed material manufacturing method according to present invention includes the steps of forming a convex formed portion by performing at least one forming process on a surface treated metal plate, and performing ironing on the formed portion using an ironing mold after forming the formed portion. The ironing mold includes a punch that is inserted into the formed portion, and a die having a pushing hole into which the formed portion is pushed together with the punch. An inner peripheral surface of the pushing hole extends non-parallel to an outer peripheral surface of the punch, and the inner peripheral surface is provided with a clearance that corresponds to an uneven plate thickness distribution, in the pushing direction, of the formed portion prior to the ironing relative to the outer peripheral surface to ensure that an amount of ironing applied to the formed portion remains constant in the pushing direction.
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5.发明申请FORMED MATERIAL MANUFACTURING METHOD AND SURFACE TREATED METAL PLATE USED IN SAME 有权形成的材料制造方法和表面处理的金属板公开(公告)号：US20160311006A1
公开(公告)日：2016-10-27
申请号：US15104309
申请日：2014-10-23
发明人： Naofumi NAKAMURA , Yudai YAMAMOTO , Jun KUROBE
摘要： A formed material manufacturing method according to present invention includes the steps of forming a convex formed portion by performing at least one forming process on a surface treated metal plate, and performing ironing on the formed portion using an ironing mold after forming the formed portion. The ironing mold includes a punch that is inserted into the formed portion, and a die having a pushing hole into which the formed portion is pushed together with the punch. An inner peripheral surface of the pushing hole extends non-parallel to an outer peripheral surface of the punch, and the inner peripheral surface is provided with a clearance that corresponds to an uneven plate thickness distribution, in the pushing direction, of the formed portion prior to the ironing relative to the outer peripheral surface to ensure that an amount of ironing applied to the formed portion remains constant in the pushing direction.
摘要翻译： 根据本发明的成形材料制造方法包括以下步骤：通过在表面处理的金属板上进行至少一个成形工艺来形成凸形成部分，并且在形成部分之后使用熨烫模具在成形部分上进行熨烫。 熨烫模具包括插入成形部的冲头和具有推动孔的模具，所述成形部与冲头一起被推入其中。 推动孔的内周面与冲头的外周面不平行地延伸，并且内周面设置有对应于形成部分的推压方向上的不平坦板厚度分布的间隙 相对于外周面的熨烫，以确保施加到成形部分的熨烫量在推动方向上保持恒定。
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公开(公告)号：US20190054515A1
公开(公告)日：2019-02-21
申请号：US16079555
申请日：2017-03-02
发明人： Naofumi NAKAMURA , Yudai YAMAMOTO
摘要： An object of the present invention is to provide a method for manufacturing a molded member, which can maintain high accuracy circularity of an inner diameter of a tubular body even if a thickness of a base metal sheet varies and which can prevent occurrence of adhesion, seizure of the like of the base metal sheet to a die used for finishing ironing. The base metal sheet is subjected to multi-stage drawing to manufacture the molded member including a tubular body and a flange formed at an end portion of the body. The multi-stage drawing includes: preliminary drawing for forming a preliminary body having a body element from the base metal sheet; at least one compression drawing performed after the preliminary drawing and forming the body by drawing the body element while applying a compressive force to the body element; and at least one finishing ironing performed after the at least one compression drawing to ensure dimensional accuracy.
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公开(公告)号：US20170128998A1
公开(公告)日：2017-05-11
申请号：US15317244
申请日：2015-02-06
摘要： The invention provides a formed material manufacturing method by which unnecessary thickening of a flange can be avoided. The formed material manufacturing method allows a formed material to be manufactured by forming processes that include at least one drawing-out process, at least one drawing process performed after the drawing-out process, and at least one coining process performed after the drawing process. The width of the rear end side of a punch used in the drawing-out process is set to be wider than the width of the tip end side thereof. An ironing process is performed on a region corresponding to the flange of the base metal sheet by pushing the base metal sheet together with the punch into a pushing hole.
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公开(公告)号：US20160144418A1
公开(公告)日：2016-05-26
申请号：US14782848
申请日：2014-11-07
摘要： A formed material having a tubular body and a flange formed at an end of the body is manufactured by multistage drawing of a blank metal sheet. The multistage drawing includes preliminary drawing in which a preliminary body having a body preform is formed from the blank metal sheet, and at least one compression drawing which is performed after the preliminary drawing and in which the body is formed by drawing the body preform while applying a compressive force to the body preform. The at least one compression drawing is performed so as to be completed before the pad portion of pressurization means reaches bottom dead center, and a support force supporting the pad portion acts as the compressive force upon the body preform when the body preform is drawn.
摘要翻译： 通过空白金属板的多段拉伸，制造具有管状体和形成在本体的端部的凸缘的成形材料。 多级图包括由坯料金属板形成具有本体预制件的预备体的初步图，以及在预备拉拔之后执行的至少一个压缩图，并且其中通过在施加时拉伸主体预成型体而形成主体 对身体预制件的压缩力。 执行至少一个压缩图，以在加压装置的焊盘部分到达下止点之前完成，并且当拉制主体预制件时，支撑该焊盘部分的支撑力用作主体预制件上的压缩力。
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