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公开(公告)号：US12282717B2
公开(公告)日：2025-04-22
申请号：US17380464
申请日：2021-07-20
Applicant: Ford Motor Company
Inventor： Evangelos Liasi , Liang Huang , Robert Vaughn Degenhardt , Christian Richard Genereux , Ryan Muirhead
Abstract: A method for compensating springback of a part includes running a finite element analysis (FEA) simulation of forming a panel using a model of forming die such that a panel with springback is simulated, determining at least two zero springback locations on the panel where hanging apertures are simulated, running an FEA simulation of the panel hanging from the hanging apertures, and comparing a geometry of the hanging panel to a geometry of a reference panel such that a difference between the geometry of the hanging panel and the geometry of the reference panel due to the springback is determined and compensated.
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公开(公告)号：US11014137B2
公开(公告)日：2021-05-25
申请号：US15795196
申请日：2017-10-26
Applicant: Ford Motor Company
Inventor： Liang Huang , Evangelos Liasi
Abstract: A method of forming a part is provided by the present disclosure. The method includes forming a blank from a material, heating the blank, stamping the blank into a panel, and trimming the panel in a trim die. Trimming the panel includes heating a portion of the trim die locally adjacent a trim area of the panel at a temperature below an austenitizing (phase transformation) temperature of the material and trimming the panel with a cutting member.
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公开(公告)号：US11198167B2
公开(公告)日：2021-12-14
申请号：US16018506
申请日：2018-06-26
Applicant: Ford Motor Company
Inventor： Raj Sohmshetty , Constantin Chiriac , Mikhail Minevich , Liang Huang
Abstract: 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：US20230026889A1
公开(公告)日：2023-01-26
申请号：US17382574
申请日：2021-07-22
Applicant: Ford Motor Company
Inventor： Evangelos Liasi , Liang Huang , Rudolf Gerich , Eric Frevik , Christian Richard Genereux , Keith Zobay
Abstract: 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. Also, the protrusion is adjustable in real-time within the female bead. A stamping machine with the first die component and the second die component has a control unit configured to adjust the protrusion in real-time as a function of mechanical property testing data, width testing data, thickness testing data, lubrication testing data and/or image sensor module data on one or more blanks to be stamped and/or one or more blanks that have been stamped.
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公开(公告)号：US10065228B2
公开(公告)日：2018-09-04
申请号：US15202662
申请日：2016-07-06
Applicant: Ford Motor Company
Inventor： Liang Huang , Evangelos Liasi
IPC: B21D22/02
Abstract: An exemplary die assembly includes a die member, a blankholder, and a collapsible spacer moveable back-and-forth between an extended position and a collapsed position. The collapsible spacer establishing a first gap between the die member and the blankholder in the extended position. The collapsible spacer establishing a second, smaller gap between the die member and blankholder in the collapsed position. An exemplary forming method includes maintaining a distance between a die member and a blankholder with a collapsible spacer when forming a workpiece into a desired shape, and collapsing the collapsible spacer to permit the die member and the blankholder to move closer together.
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Patent Agency Ranking
公开(公告)号：US12083607B2
公开(公告)日：2024-09-10
申请号：US16858908
申请日：2020-04-27
Applicant: FORD MOTOR COMPANY
Inventor： Liang Huang , Evangelos Liasi
CPC classification number: B23D15/04 , B21D19/005 , B21D21/00 , B21D24/16 , B21D28/02 , B23D33/00 , B23P23/04 , B24B27/033
Abstract: An apparatus for trimming a sheet metal panel in a die set. A grinding tool including a grinding wheel driven by a rotary drive is used to grind away a shear affected zone from the trimmed edge formed by the trim steel. The grinding tool is disposed within a cavity defined by the reciprocating die and is oriented to grind away a shear affected zone as the reciprocating die moves the grinding tool into engagement with the trimmed edge.
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公开(公告)号：US20230028435A1
公开(公告)日：2023-01-26
申请号：US17380464
申请日：2021-07-20
Applicant: Ford Motor Company
Inventor： Evangelos Liasi , Liang Huang , Robert Vaughn Degenhardt , Christian Richard Genereux , Ryan Muirhead
Abstract: A method for compensating springback of a part includes running a finite element analysis (FEA) simulation of forming a panel using a model of forming die such that a panel with springback is simulated, determining at least two zero springback locations on the panel where hanging apertures are simulated, running an FEA simulation of the panel hanging from the hanging apertures, and comparing a geometry of the hanging panel to a geometry of a reference panel such that a difference between the geometry of the hanging panel and the geometry of the reference panel due to the springback is determined and compensated.
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公开(公告)号：US20190126337A1
公开(公告)日：2019-05-02
申请号：US15795196
申请日：2017-10-26
Applicant: Ford Motor Company
Inventor： Liang Huang , Evangelos Liasi
Abstract: A method of forming a part is provided by the present disclosure. The method includes forming a blank from a material, heating the blank, stamping the blank into a panel, and trimming the panel in a trim die. Trimming the panel includes heating a portion of the trim die locally adjacent a trim area of the panel at a temperature below an austenitizing (phase transformation) temperature of the material and trimming the panel with a cutting member.
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公开(公告)号：US10052673B2
公开(公告)日：2018-08-21
申请号：US15135661
申请日：2016-04-22
Applicant: Ford Motor Company
Inventor： Liang Huang , Evangelos Liasi
Abstract: 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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公开(公告)号：US20180009018A1
公开(公告)日：2018-01-11
申请号：US15202662
申请日：2016-07-06
Applicant: Ford Motor Company
Inventor： Liang Huang , Evangelos Liasi
IPC: B21D22/02
CPC classification number: B21D22/022 , B21D22/02 , B21D24/06
Abstract: An exemplary die assembly includes a die member, a blankholder, and a collapsible spacer moveable back-and-forth between an extended position and a collapsed position. The collapsible spacer establishing a first gap between the die member and the blankholder in the extended position. The collapsible spacer establishing a second, smaller gap between the die member and blankholder in the collapsed position. An exemplary forming method includes maintaining a distance between a die member and a blankholder with a collapsible spacer when forming a workpiece into a desired shape, and collapsing the collapsible spacer to permit the die member and the blankholder to move closer together.
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