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公开(公告)号：US20220118503A1
公开(公告)日：2022-04-21
申请号：US17075947
申请日：2020-10-21
发明人： Evangelos Liasi , Liang Huang , Yinong Shen , Joon Kang , Rob Vaughn Degenhardt
IPC分类号： B21D53/88
摘要： A method of manufacturing a panel using an initial die and a series of secondary dies includes sequentially defining multi-dimensional models for the series of secondary dies. The method includes simulating a geometry of an nth pre-panel, defining a multi-dimensional model of the nth secondary die based on the simulated geometry of the nth pre-panel, simulating operation of the nth secondary die on the nth pre-panel to determine geometry of an (n+1)th pre-panel, and determining a deviation between the simulated (n+1)th pre-panel and a target pre-panel geometry. If the deviation is outside tolerance, the method includes iteratively: adjusting the multi-dimensional model of the nth secondary die, simulating operation thereof to determine an adjusted simulated geometry of the (n+1)th pre-panel, and determining a deviation between the adjusted simulated geometry of the (n+1)th pre-panel and the target (n+1)th pre-panel, until the deviation is within the tolerance limit.
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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：US20220280994A1
公开(公告)日：2022-09-08
申请号：US17194505
申请日：2021-03-08
发明人： Evangelos Liasi , Liang Huang , Feng Ren , Andrey M. Ilinich , Yuan Gan , S. George Luckey, JR.
IPC分类号： B21D37/10
摘要： A forming die includes a first die component with a male bead and a second die component with a female bead. The male bead and the female bead form a bead with a reverse bead geometry with the male bead having a groove and the female bead having a protrusion complimentary with the groove such that the protrusion is aligned with the groove when the male bead extends into the female bead. The male bead includes a push surface, a pair of sidewalls extending from the push surface to a main surface of the first die component, and the groove extends inwardly into the rib. And the female bead includes a stop surface and a pair of sidewalls extending from the stop surface to a main surface of the second die component, and the protrusion extends outwardly from the stop surface into the female bead.
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公开(公告)号：US20170304886A1
公开(公告)日：2017-10-26
申请号：US15135661
申请日：2016-04-22
发明人： Liang Huang , Evangelos Liasi
摘要： An exemplary die assembly includes, among other things, a first die having a male bead, a second die having a female bead configured to receive the male bead to hold a workpiece between the first die and the second die, and a step in the male bead, the female bead, or both. An exemplary forming method includes, among other things, holding a workpiece between a male bead of a first die and a female bead of a second die, wherein the male bead, the female bead, or both have at least one step.
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