Method of fabricating metallic sandwich structure
    2.
    发明授权
    Method of fabricating metallic sandwich structure 失效
    制作金属夹心结构的方法

    公开(公告)号:US4304821A

    公开(公告)日:1981-12-08

    申请号:US79781

    申请日:1979-09-28

    摘要: The structure and the process for making a metallic sandwich structure in which metal worksheets, preferably made from titanium alloy, are joined in a preselected pattern by an intermittent or discontinuous weld. The joined sheets are sealed by a continuous weld to form an expandable envelope. Application of inert gas pressure to the envelope in a limiting fixture superplastically produces the sandwich structure as the expanded structure diffusion bonds to itself or other worksheets. Core configuration of the structure is determined by the intermittent weld pattern. Face sheets of the sandwich structure may be formed from one sheet of the envelope or may be inserted in the limiting fixture and the envelope expanded against the face sheets. Additionally, the face sheets may be preformed or formed concurrently with the core to produce the desired core and sandwich shape in a single operation.

    摘要翻译: 制造金属夹层结构的结构和方法,其中优选由钛合金制成的金属工作片通过间歇或不连续焊接以预选图案接合。 连接的片材通过连续焊接来密封以形成可扩展的封套。 在限制性夹具中将惰性气体压力施加到封套上,由于膨胀结构扩散与其自身或其它工作表结合而超塑性地产生夹层结构。 结构的芯体结构由断续焊接图形决定。 夹层结构的面片可以由一片信封形成,或者可以插入限制夹具中,并且信封相对于面纸膨胀。 此外,面片可以与芯部同时预成型或形成,以在单次操作中产生期望的芯和夹层形状。

    Metallic sandwich structure and method of fabrication
    3.
    发明授权
    Metallic sandwich structure and method of fabrication 失效
    金属夹层结构及其制造方法

    公开(公告)号:US4217397A

    公开(公告)日:1980-08-12

    申请号:US898197

    申请日:1978-04-18

    IPC分类号: B23K11/00 B23K20/00 B23K31/02

    摘要: The structure and the process for making a metallic sandwich structure in which metal worksheets, preferably made from titanium alloy, are joined in a preselected pattern by an intermittent or discontinuous weld. The joined sheets are sealed by a continuous weld to form an expandable envelope. Application of inert gas pressure to the envelope in a limiting fixture superplastically produces the sandwich structure as the expanded structure diffusion bonds to itself or other worksheets. Core configuration of the structure is determined by the intermittent weld pattern. Face sheets of the sandwich structure may be formed from one sheet of the envelope or may be inserted in the limiting fixture and the envelope expanded against the face sheets. Additionally, the face sheets may be preformed or formed concurrently with the core to produce the desired core and sandwich shape in a single operation.

    摘要翻译: 制造金属夹层结构的结构和方法,其中优选由钛合金制成的金属工作片通过间歇或不连续焊接以预选图案接合。 连接的片材通过连续焊接来密封以形成可扩展的封套。 在限制性夹具中将惰性气体压力施加到封套上,由于膨胀结构扩散与其自身或其它工作表结合而超塑性地产生夹层结构。 结构的芯体结构由断续焊接图形决定。 夹层结构的面片可以由一片信封形成,或者可以插入限制夹具中,并且信封相对于面纸膨胀。 此外,面片可以与芯部同时预成型或形成,以在单次操作中产生期望的芯和夹层形状。

    Stops for curved SPF/DB sandwich fabrication
    4.
    发明授权
    Stops for curved SPF/DB sandwich fabrication 失效
    弯曲SPF / DB三明治制造的停止

    公开(公告)号:US4916928A

    公开(公告)日:1990-04-17

    申请号:US318967

    申请日:1989-03-06

    IPC分类号: B21D26/055 B21D47/00

    摘要: The process for forming a metallic sandwich structure having a curved surface, particularly a surface curving about more than one axis, such as a quadric surface partially by direct displacement and partially by a fluid interface. Additionally, means to restrain the work sheets being formed with respect to the shaping fixture which allow a portion of the work sheets to flow into the forming cavity before absolute restraint is applied and the restraining means function independently of the clamping force of the press.

    摘要翻译: 用于形成具有弯曲表面的金属夹层结构的方法,特别是围绕多于一个轴线弯曲的表面,例如部分通过直接位移部分地由流体界面弯曲的二次曲面。 此外,限制相对于成形夹具形成的工作片的装置,其允许一部分工作片在施加绝对约束之前流入成形腔,并且限制装置独立于压力机的夹紧力起作用。

    Curved SPF/DB sandwich fabrication
    5.
    发明授权
    Curved SPF/DB sandwich fabrication 失效
    弯曲的SPF / DB三明治制造

    公开(公告)号:US4833768A

    公开(公告)日:1989-05-30

    申请号:US187601

    申请日:1988-04-28

    摘要: The process for forming a metallic sandwich structure having a curved surface, particularly a surface curving about more than one axis, such as a quadric surface partially by direct displacement and partially by a fluid interface. Additionally, means to restrain the work sheets being formed with respect to the shaping fixture which allow a portion of the work sheets to flow into the forming cavity before absolute restraint is applied and the restraining means function independently of the clamping force of the press.

    摘要翻译: 用于形成具有弯曲表面的金属夹层结构的方法,特别是围绕多于一个轴线弯曲的表面,例如部分通过直接位移部分地由流体界面弯曲的二次曲面。 此外,限制相对于成形夹具形成的工作片的装置,其允许一部分工作片在施加绝对约束之前流入成形腔,并且限制装置独立于压力机的夹紧力起作用。