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    Apparatus and methods for single sheet forming using induction heating
    43.
    发明授权
    Apparatus and methods for single sheet forming using induction heating 有权
    使用感应加热单片成型的装置和方法

    公开(公告)号：US06914225B2

    公开(公告)日：2005-07-05

    申请号：US10464796

    申请日：2003-06-18

    申请人： John R. Fischer ,  Marc R. Matsen ,  Dwayne C. Joseph ,  Larry D. Hefti ,  Ronald W. Brown

    发明人： John R. Fischer ,  Marc R. Matsen ,  Dwayne C. Joseph ,  Larry D. Hefti ,  Ronald W. Brown

    IPC分类号： A61K47/48 ,  H05B6/10

    CPC分类号： A61K47/48215 ,  A61K47/60

    摘要： Apparatus and methods for single sheet forming using induction heating include a pair of dies defining a die cavity for containing a workpiece, which is inductively heated by an oscillating magnetic field within the die cavity. A susceptor is positioned between the workpiece and one die surface defined by one of the dies. The susceptor is capable of coupling with the oscillating magnetic field to induce a current within the susceptor to heat the susceptor. The susceptor transfers heat to the workpiece. An inlet for pressurized forming fluid injects the fluid between the susceptor and the workpiece to form the workpiece into direct contact with a forming surface defined by one of the dies. The susceptor may be electrically connected to the workpiece to inhibit electrical arcing from the susceptor to adjacent electrically conductive components when current is induced in the susceptor. The apparatus may further include a seal frame that releasably engages the workpiece to form a pressurizing cavity between the susceptor and the workpiece. The inlet injects the fluid into the pressurizing cavity to develop and apply forming pressure to the workpiece.

    摘要翻译： 使用感应加热的单片成形的装置和方法包括一对模具，其限定用于容纳工件的模腔，该模具被模腔内的振荡磁场感应加热。 基座位于工件和由一个模具限定的一个模具表面之间。 感受器能够与振荡磁场耦合以在感受器内感应电流以加热感受体。 基座将热量传递给工件。 用于加压成形流体的入口在基座和工件之间喷射流体，以使工件与由一个模具限定的成形表面直接接触。 当在基座中感应电流时，基座可以电连接到工件以防止从基座到相邻的导电部件的电弧。 该装置还可以包括密封框架，其可释放地接合工件以在基座和工件之间形成加压空腔。 入口将流体注入加压腔中以对工件形成和施加成形压力。

    Induction heating of composite materials
    49.
    发明授权
    Induction heating of composite materials 失效
    复合材料的感应加热

    公开(公告)号：US5571436A

    公开(公告)日：1996-11-05

    申请号：US423549

    申请日：1995-04-17

    申请人： Paul S. Gregg ,  Marc R. Matsen

    发明人： Paul S. Gregg ,  Marc R. Matsen

    IPC分类号： B21D26/055 ,  B22F3/105 ,  B23K20/02 ,  B29C33/06 ,  B29C35/08 ,  B29C43/36 ,  B29C65/00 ,  B29C65/32 ,  B29C65/34 ,  B29C65/36 ,  B29C65/48 ,  B29C70/44 ,  B29C70/54 ,  B64C3/18 ,  H05B6/02 ,  H05B6/14 ,  H05B6/36 ,  B23K13/01

    CPC分类号： B29C43/52 ,  B21D26/055 ,  B22F3/105 ,  B23K20/023 ,  B29C33/06 ,  B29C35/08 ,  B29C43/3642 ,  B29C70/44 ,  B29C70/542 ,  B32B37/06 ,  B64C3/18 ,  H05B6/365 ,  B23K2201/18 ,  B29C2035/0811 ,  B29C2043/3233 ,  B29C33/08 ,  B32B2305/024 ,  B32B2310/0812 ,  C09K2205/12 ,  Y02T50/433

    摘要： Apparatus and method for superplastic forming. The workpiece is held between a pair of dies that are electrically and thermally nonconductive, and is heated inductively by a coil embedded within the dies. The dies are formed of a material that is substantially transparent to inductive heating. A plurality of electrical conductors are embedded within the die. The electrical conductors are interconnected into one or more electrically conductive coils that surround the workpiece. The electrical conductors are used to produce a time varying magnetic field that is used to heat the workpiece. In one embodiment, the workpiece is a composite material that is susceptible to inductive heating. The composite material includes an electrically conductive material. The time varying magnetic field heats the electrical conductive material, thereby heating the workpiece. The die also includes a forming surface having a shape corresponding to a desired shape of the workpiece. A pressure differential is created between the first and second sides of the workpiece to deform the workpiece to the shape of the forming surface.

    摘要翻译： 超塑性成型装置及方法 工件被保持在电和热不导电的一对管芯之间，并且被嵌入在管芯内的线圈感应加热。 模具由对感应加热基本透明的材料形成。 多个电导体嵌入在管芯内。 电导体被互连成围绕工件的一个或多个导电线圈。 电导体用于产生用于加热工件的时变磁场。 在一个实施例中，工件是易于感应加热的复合材料。 复合材料包括导电材料。 时变磁场加热导电材料，由此加热工件。 模具还包括具有对应于工件的期望形状的形状的成形表面。 在工件的第一和第二侧之间产生压差，以使工件变形成成形表面的形状。