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公开(公告)号：US11224908B2
公开(公告)日：2022-01-18
申请号：US15762824
申请日：2016-09-28
发明人： Takashi Yasutomi , Takashi Matsuno , Tohru Yoshida
IPC分类号： B21D28/04 , B21D28/34 , B23K31/00 , B21D35/00 , B21D28/16 , B23D35/00 , B21D24/16 , B21D22/02 , B23D15/08
摘要： A cutting method using a stamping press according to the present disclosure is a method to cut a workpiece that is configured from a first metal sheet and a second metal sheet joined at a weld portion and that has a heat-affected zone around the weld portion, in which the workpiece is cut using a punch. The punch includes a flat portion and a projecting portion projected more toward the workpiece than a flat portion of the punch. The workpiece is positioned with respect to the punch at a position such that the projecting portion starts cutting at least at one out of the heat-affected zone or the weld portion before the flat portion cuts the workpiece. The workpiece is then cut by moving the punch and a die relative to each other in this state of positioning so as to shear across the weld portion on the workpiece.
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公开(公告)号：US20200282441A1
公开(公告)日：2020-09-10
申请号：US16881772
申请日：2020-05-22
发明人： Kazuhiko Yokoi , Yasuhisa Sakashita
摘要： A hot-stamped and trimmed part is produced by hot pressing a blank and then cutting off an excess outer peripheral portion by laser machining, an outer peripheral shape of the hot-stamped and trimmed part includes a laser trim line formed by cutting in the laser machining, and a press trim line formed by shearing in the hot pressing or pressing performed before the hot pressing, and the laser trim line and the press trim line are connected via a projecting corner portion.
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公开(公告)号：US20200078846A1
公开(公告)日：2020-03-12
申请号：US16128587
申请日：2018-09-12
申请人： Dajun Zhou , Changqing Du , Robert D. Miller
发明人： Dajun Zhou , Changqing Du , Robert D. Miller
摘要： A method of forming a finished stamped product includes positioning a blank on a blank holder between an upper die and a lower die, inserting a movable wedge block between the blank holder and the upper die to establish a first binder gap, and while the movable wedge block is inserted, performing a first strike of the blank by lowering the upper die a first distance to contact and partially form the blank, the movable wedge block limiting downward movement of the upper die relative to the lower die. After the first strike, withdrawing the movable wedge block to establish a second binder gap between the blank holder and the upper die, and while the movable wedge block is withdrawn, performing a second strike of the blank by lowering the upper die a second distance to finally form the blank into the finished product.
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公开(公告)号：US20190388948A1
公开(公告)日：2019-12-26
申请号：US16018506
申请日：2018-06-26
摘要： A method of forming a hot stamped, die quenched, and die trimmed part is provided. The method includes hot stamping and die quenching a blank with a quench die and forming a die quenched panel. The quench die includes at least one slow-cooling channel. The die quenched panel is die trimmed along the at least one localized soft zone that is adjacent a hard zone. The blank may be formed from a press hardenable steel (PHS), and the at least one soft zone may have a ferritic microstructure and the at least one hard zone may have a martensitic microstructure. The at least one localized soft zone may have a microhardness between about 200 HV and about 250 HV and the hard zone may have a microhardness between about 400 HV and about 500 HV.
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公开(公告)号：US20190176205A1
公开(公告)日：2019-06-13
申请号：US16306760
申请日：2017-06-21
申请人： Sandro Mizzon
发明人： Sandro Mizzon
摘要： A machine for forming metal stampings comprising an upper die holder on which an upper die half and an upper clamping yoke are mounted; a lower die holder on which a lower die half and a lower clamping yoke are mounted; handling means suitable to achieve the bringing together and moving apart of the upper die holder and the lower die holder; and an edge cutting/bending unit suitable to carry out both the cutting and bending of the edge and arranged between the two die halves and the two clamping yokes. The edge cutting/bending unit comprises a cutting blade suitable to cut the edge of a sheet to be formed; an outer bending blade arranged below said cutting blade and which forms a pushing step with it, facing in use towards said upper die half and said lower die half, and an inner bending blade arranged to slide along said outer bending blade.
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公开(公告)号：US09669447B2
公开(公告)日：2017-06-06
申请号：US13569525
申请日：2012-08-08
摘要： The invention relates to a device for drawing components from a blank (1) made of metal using a drawing punch (2) and a die (3), the drawing punch (2) having a cutting edge (4) for trimming the blank (1) during the drawing procedure and a run-in contour (5) being provided in the die (3). The invention also relates to a method for drawing a blank using the device according to the invention and to a use according to the invention of the method. The run-in contour (5) of the die (3) is configured such that the cutting edge (4) and the run-in contour (5) are only in cutting engagement in certain regions in the drawing punch position at the start of the cutting procedure along the cutting line (7).
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公开(公告)号：US09242287B2
公开(公告)日：2016-01-26
申请号：US14048631
申请日：2013-10-08
申请人： Xiangfan Fang
发明人： Xiangfan Fang
IPC分类号： B21D28/24 , B21D24/16 , B21D37/16 , C21D1/673 , B29C51/08 , B29C51/26 , B29C51/32 , B29C51/42
CPC分类号： B21D28/24 , B21D24/16 , B21D37/16 , B29C51/082 , B29C51/262 , B29C51/32 , B29C51/428 , C21D1/673
摘要： The invention relates to a hot forming tool for hot forming a metal workpiece, having at least two dies which may be moved relative to one another for forming the workpiece, and having a cooling device by means of which the workpiece may be cooled in the hot forming tool from a first, higher temperature to a second, lower temperature. To improve the hot forming tool, it is provided that the hot forming tool is equipped with a separating device by means of which a separating operation may be carried out on a workpiece present in the hot forming tool. The invention further relates to a method for hot forming.
摘要翻译： 本发明涉及一种用于热成型金属工件的热成形工具，其具有至少两个可相对于彼此移动的模具以形成工件，并具有冷却装置，通过该冷却装置可将工件冷却至热 成型工具从第一个更高的温度到第二个较低的温度。 为了改善热成形工具，提供了热成形工具配备有分离装置，通过该分离装置可以在存在于热成形工具中的工件上进行分离操作。 本发明还涉及一种热成型方法。
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公开(公告)号：US20150273559A1
公开(公告)日：2015-10-01
申请号：US14646862
申请日：2012-11-30
发明人： Kazumi Saito
CPC分类号： B21D24/16 , B21D22/22 , B21D35/001 , B23D27/00
摘要： Provided is a technique capable of inexpensively working a steel sheet. A method for working a workpiece with an apparatus for working a workpiece, includes: a drawing step for performing drawing with a drawing device having an upper die and a lower die; and a cutting step for cutting the drawn workpiece with a cutting device having nibblers. The nibbler has a cylindrical case, a punch housed in the case, which reciprocates in a top-bottom direction to punch the workpiece, and a die arranged below the case, the die having a die hole into which the punch enters, and an ejecting hole communicating with the die hole, through which a scrap is ejected. The nibbler trims the workpiece fed between the case and the die.
摘要翻译： 提供能够廉价地加工钢板的技术。 一种用于加工工件的装置的工件的方法，包括：拉拔步骤，用具有上模和下模的拉丝装置进行拉伸; 以及切割步骤，用切割装置切割拉出的工件。 冲击器具有圆筒形壳体，容纳在壳体中的冲头，其在上下方向上往复运动以冲压工件;以及模具，其布置在壳体下方，模具具有冲头进入的模孔，并且弹出 与模具孔连通的孔，通过该孔与废料弹出。 冲击器将进给到壳体和模具之间的工件进行修整。
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公开(公告)号：US09056347B2
公开(公告)日：2015-06-16
申请号：US13885082
申请日：2011-11-15
申请人： Hiroyuki Eguchi , Toshifumi Matsuda , Kazuya Saito , Jiro Watanabe , Kohei Teshima , Michio Nakamura , Masayasu Nishida , Ken Hashimoto
发明人： Hiroyuki Eguchi , Toshifumi Matsuda , Kazuya Saito , Jiro Watanabe , Kohei Teshima , Michio Nakamura , Masayasu Nishida , Ken Hashimoto
摘要： A press-die is provided with a lower die and an upper die. The lower die includes a drawing punch, a blank holder, and a cushion part. The upper die includes a drawing die part, and a trimming part. The blank holder includes a first holder part disposed to face to an end portion of the drawing die part, and a second holder part disposed to face to the trimming part. The second holder part has a drawing support portion that supports a first portion of a bottom surface of the first holder part. The drawing punch has a trimming support portion that supports a second portion of the bottom surface of the first holder part. The first holder part has a lower trimming blade at an outer edge thereof. The trimming part has an upper trimming blade at an inner edge thereof.
摘要翻译： 压模具有下模和上模。 下模包括拉拔冲头，坯料夹持件和缓冲部件。 上模具包括拉伸模具部分和修剪部分。 所述坯料夹持器包括设置成面对所述拉伸模具部分的端部的第一保持器部分和与所述修剪部分相对设置的第二保持器部分。 第二保持器部分具有支撑第一保持器部分的底表面的第一部分的拉伸支撑部分。 拉伸冲头具有支撑第一保持器部分的底表面的第二部分的修剪支撑部分。 第一保持器部件在其外边缘处具有下修剪刀片。 修剪部件在其内边缘处具有上修剪刀片。
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公开(公告)号：US09050641B2
公开(公告)日：2015-06-09
申请号：US13717382
申请日：2012-12-17
发明人： Jong Kun Cho
CPC分类号： B21D28/00 , B21D22/022 , B21D22/208 , B21D24/08 , B21D24/16 , B21D37/16
摘要： Disclosed herein is a hot stamping device for forming, cooling and trimming a material heated to a set temperature including a lower stanchion having a lower mold steel formed to a shape corresponding to a bottom surface of the material and a blank holder vertically movable on an exterior of the lower mold steel; a lower trimming steel mounted on the blank holder, configured to support the edges of the material; an upper stanchion having an upper mold steel formed to a shape corresponding to an upper surface of the material, and configured to move the upper mold steel up and down; an upper trimming steel disposed on an exterior of the upper mold steel move downwardly with the lower trimming steel to trim the edges of the material; and a cooling unit disposed on to the lower and the upper mold steels and the lower and the upper trimming steels, and configured to circulate coolant.
摘要翻译： 本文公开了一种用于形成，冷却和修整加热到设定温度的材料的热冲压装置，包括具有形成为对应于材料的底表面的形状的下模具的下支柱，以及可在外部垂直移动的坯件 的下模钢; 安装在所述坯料保持器上的下修剪钢，构造成支撑所述材料的边缘; 具有形成为与所述材料的上表面相对应的形状的上模具的上支柱，并且被配置为上下移动上模具; 设置在上模具钢的外部的上修边钢与下修剪钢向下移动以修剪材料的边缘; 以及设置在下模具钢和上模具钢以及下部和上部修整钢上并且构造成使冷却剂循环的冷却单元。
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