公开(公告)号：US5467626A

公开(公告)日：1995-11-21

申请号：US130545

申请日：1993-10-01

申请人： Daniel G. Sanders

发明人： Daniel G. Sanders

IPC分类号： B21D26/055 ,  B21D37/20 ,  B21D26/02

CPC分类号： B21D26/055 ,  B21D37/20 ,  Y10S72/709

摘要： A free standing, self-supporting ceramic superplastic forming die assembly having a configuration that provides sufficient strength to resist a compressive load exerted by a press to hold a die lid on a die body against an oppositely directed force generated by gas at superplastic forming pressures within the die, and provides sufficient tensile strength, when under pressure of compressive loads exerted by the press to resist internal bursting force exerted by gas at superplastic forming pressures within the die, thereby making possible the use of a ceramic die for superplastic forming applications without the need of a surrounding containment pressure vessel.

摘要翻译： 一种独立的自支撑陶瓷超塑成形模具组件，其具有提供足够的强度以抵抗由压力机施加的压缩载荷以将模具盖保持在模具本体上的压力的构造，以抵抗在超塑性成形压力下由气体产生的相反方向的力 并且当由压机施加的压缩载荷的压力下提供足够的拉伸强度以抵抗由在模具内的超塑性成形压力下由气体施加的内部破裂力，由此可能使用陶瓷模具用于超塑性成形应用，而不需要 需要周围的容器压力容器。

公开(公告)号：US5457884A

公开(公告)日：1995-10-17

申请号：US255773

申请日：1994-06-07

申请人： John O. Fowler ,  Brian Richardson

发明人： John O. Fowler ,  Brian Richardson

IPC分类号： B21D26/055 ,  B23K20/00 ,  B23P15/04 ,  B23K20/18

CPC分类号： B21D26/055 ,  B23K20/002 ,  Y10T29/49339

摘要： A plurality of workpieces are assembled into a stack. Two of the workpieces are machined on one surface at predetermined positions from the edges of the workpieces. The workpieces are stacked so that the machined surfaces of the workpieces face away from each other. Two workpieces are provided with a stop off material on one of their surfaces to prevent diffusion bonding at predetermined positions. The edges of the workpieces are welded together and a pipe is welded to the stack to interconnect with the stop off material to form a sealed assembly. The workpieces are diffusion bonded together. The integral structure formed is heated and opposite ends of the integral structure are twisted relatively to contour the integral structure to a predetermined shape. The integral structure is heated and the machined portions on the workpieces are isothermally forged and then the twisted integral structure is internally pressurized to superplastically form one workpiece to produce an article, e.g. a fan blade.

摘要翻译： 多个工件组装成堆叠。 两个工件在工件的边缘的预定位置在一个表面上加工。 工件被堆叠，使得工件的加工表面彼此远离。 两个工件在其一个表面上设置有停止材料，以防止在预定位置的扩散粘结。 工件的边缘被焊接在一起，并且管道被焊接到堆叠以与停止材料互连以形成密封组件。 工件扩散粘合在一起。 所形成的整体结构被加热，并且整体结构的相对端被相对地扭曲以将整体结构轮廓化为预定的形状。 整体结构被加热，并且工件上的加工部分被等温锻造，然后扭转的整体结构在内部被加压以超塑性地形成一个工件以产生制品，例如制品。 风扇叶片。

公开(公告)号：US5419791A

公开(公告)日：1995-05-30

申请号：US95109

申请日：1993-07-21

申请人： Carroll W. Folmer

发明人： Carroll W. Folmer

IPC分类号： B21D26/047 ,  B21D26/055 ,  C21D1/673 ,  C21D9/00 ,  C21D9/08 ,  B21D22/06

CPC分类号： B21D26/055 ,  B21D26/047 ,  C21D9/0025 ,  C21D9/08 ,  C21D1/673

摘要： This is a method for heat assisted forming, annealing, and hardening 360.degree. sheet metal shapes in a clean environment in a single facility that results in dimensionally correct, cost-effective, contaminant free parts.

摘要翻译： 这是在单一设施的清洁环境中热辅助成型，退火和硬化360°钣金形状的方法，其导致尺寸正确，成本有效，无污染物的部件。

公开(公告)号：US5363555A

公开(公告)日：1994-11-15

申请号：US45097

申请日：1993-04-12

申请人： John O. Fowler ,  Brian Richardson

发明人： John O. Fowler ,  Brian Richardson

IPC分类号： B23K20/00 ,  B21D26/055 ,  B21D53/04 ,  B23K20/02 ,  B23K20/18 ,  B23K31/02

CPC分类号： B21D26/055 ,  B21D53/045 ,  B23K20/023 ,  B23K20/18 ,  B23K2201/001 ,  Y10T29/49339

摘要： A plurality of titanium sheets are assembled into a stack. At least one of the sheets is provided with a stop off material on one of its surfaces to prevent diffusion bonding at predetermined positions. The edges of the sheets are welded together and a pipe is welded to the stack to interconnect with the stop off material to form a sealed assembly. The assembly is heated and externally pressurized to diffusion bond the sheets together. The integral structure so formed is heated and opposite ends of the integral structure are twisted relatively to contour the integral structure to a predetermined shape. The integral structure is internally pressurized to break the adhesive bonds. The integral structure is heated and internally pressurized to superplastically form one sheet to produce an article, e.g. a fan blade.

摘要翻译： 将多个钛片组装成堆叠。 至少一个片材在其一个表面上设置有停止材料，以防止在预定位置的扩散接合。 板的边缘被焊接在一起，并且管被焊接到堆叠以与停止材料互连以形成密封组件。 组件被加热和外部加压以将片材扩散粘合在一起。 这样形成的整体结构被加热，并且整体结构的相对端被相对扭转以将整体结构轮廓化为预定的形状。 整体结构内部加压以破坏粘结。 整体结构被加热并在内部被加压以超塑性地形成一片以产生制品，例如。 风扇叶片。

公开(公告)号：US5345799A

公开(公告)日：1994-09-13

申请号：US973104

申请日：1992-11-06

申请人： Pavel Miodushevski ,  Oleg Sosnin ,  Galina Rajevskaya

发明人： Pavel Miodushevski ,  Oleg Sosnin ,  Galina Rajevskaya

IPC分类号： B21D11/20 ,  B21D26/055 ,  B21D37/16 ,  C21D1/00 ,  C21D9/00 ,  C21D9/46 ,  B21D11/00

CPC分类号： B21D26/055 ,  B21D11/20 ,  B21D37/16 ,  C21D1/00 ,  C21D9/0025 ,  C21D9/46

摘要： A method of manufacturing workpieces (6) and a device for effecting the same are related to the field of plastic metal working and can be used in the machine building industry. In order to improve the precision and strength of the workpieces (6) and to extend their service life, the workpiece blank is subdivided into heating zones, loading zones and cooling zones. The number of deforming steps is determined, the workpiece (6) is deformed under creeping conditions with stresses below the limit of elasticity, and, to avoid irreversible deformations, the stresses are relaxed. For this purpose, the thermal chamber (1) is provided with a multisectional housing (7) which has its sections (8) connected pivotally with each other where each section (8) has its own heater (2) and cooler (9), and within each of the zones a portion of the workpiece blank (6) is to be positioned which has the same geometrical and thermal physical properties throughout it.

摘要翻译： 制造工件（6）的方法和实现该方法的装置与塑料金属加工领域有关，可用于机械制造业。 为了提高工件（6）的精度和强度，延长使用寿命，工件坯料分为加热区，加载区和冷却区。 确定变形步骤的数量，工件（6）在应力低于弹性极限的蠕变条件下变形，为了避免不可逆变形，应力松弛。 为此，热室（1）设置有多部分壳体（7），其具有彼此枢转地连接的部分（8），其中每个部分（8）具有其自己的加热器（2）和冷却器（9）， 并且在每个区域内，工件坯料（6）的一部分被定位，其整个结构具有相同的几何和热物理性质。

公开(公告)号：US5309747A

公开(公告)日：1994-05-10

申请号：US12788

申请日：1993-02-03

申请人： Ken K. Yasui

发明人： Ken K. Yasui

IPC分类号： B21D26/055 ,  B21D26/02

CPC分类号： B21D26/055 ,  Y10S72/709

摘要： A forming die which includes a die cavity contains a forming blank composed of a metallic alloy having superplastic properties. The forming pressure in a pressurized space adjacent the forming blank is regulated by a pressure regulator. The volume of the die cavity is determined, as is the mass of gas initially contained in the die cavity at the beginning of the forming cycle. The total forming time is empirically determined. The average gas mass flow rate that will be exhausted from the die cavity is calculated by dividing the total mass of gas initially contained in the die cavity by the total forming time. A gas mass flow meter fluidly communicates with the die cavity and measures the mass flow rate of the gas displaced by the forming blank and exhausted from the die cavity. The gas mass flow meter is continuously monitored during the forming cycle or a gas mass flow rate signal is fed back to the pressure regulator. The forming pressure is regulated by the pressure regulator so that the gas mass flow rate exhausted from the die cavity approximates the predetermined average gas mass flow rate.

摘要翻译： 包括模腔的成形模具包含由具有超塑性的金属合金构成的成形坯料。 邻近成形坯料的加压空间中的成形压力由压力调节器调节。 确定模腔的体积，以及在成型周期开始时最初包含在模腔中的气体的质量。 总成型时间经验确定。 通过将最初包含在模腔中的气体的总质量除以总形成时间来计算将从模腔中排出的平均气体质量流量。 气体质量流量计与模腔流体连通并测量被成形坯料置换并从模腔排出的气体的质量流量。 气体质量流量计在成形循环期间被连续监测，或气体质量流量信号被反馈给压力调节器。 成形压力由压力调节器调节，使得从模腔排出的气体质量流量接近预定平均气体质量流量。

公开(公告)号：US5243758A

公开(公告)日：1993-09-14

申请号：US803852

申请日：1991-12-09

申请人： Jeffrey LeMonds ,  Jung-Ho Cheng ,  Gene E. Wiggs ,  Gary T. Martini ,  Ralph E. Patsfall

发明人： Jeffrey LeMonds ,  Jung-Ho Cheng ,  Gene E. Wiggs ,  Gary T. Martini ,  Ralph E. Patsfall

IPC分类号： B21D26/055 ,  B23K20/02 ,  B23P15/04 ,  B64C11/20

CPC分类号： B21D26/055 ,  B23K20/023 ,  B23P15/04 ,  B64C11/20 ,  Y10T29/49336 ,  Y10T29/49339 ,  Y10T29/49893

摘要： A method for making a three-piece hollow airfoil includes preforming three metal sheets into initial shapes and sealing them together to form an in-process assembly. Internal cavities are formed in the assembly prior to sealing. The assembly is subjected to high temperature and pressure to diffusion bond the sheets together at selected points. The cavities are then subjected to internal pressure at high temperature in order to inflate and superplastically deform the assembly to the desired shape. Excess material may be machined off after inflation.

公开(公告)号：US5129248A

公开(公告)日：1992-07-14

申请号：US636791

申请日：1991-01-02

申请人： Ken K. Yasui

发明人： Ken K. Yasui

IPC分类号： B21D26/055

CPC分类号： B21D26/055 ,  Y10S72/709

摘要： An apparatus and method for controlling the superplastic forming process by measuring and controlling the gas mass flow rate of the gas displacing the blank being formed.

摘要翻译： 一种用于通过测量和控制排出形成的坯料的气体的气体质量流量来控制超塑性成形工艺的装置和方法。

公开(公告)号：US4984348A

公开(公告)日：1991-01-15

申请号：US492314

申请日：1990-03-06

申请人： Gilbert C. Cadwell

发明人： Gilbert C. Cadwell

IPC分类号： B21D26/055

CPC分类号： B21D26/055 ,  Y10T29/4981

摘要： An improved method of superplastic forming comprises the steps of selecting a relatively larger driver sheet and a relatively smaller part blank, both being made of Titanium, Titanium alloy or other metal capable of exhibiting superplasticity. A ceramic die is placed on a bottom wall of an upwardly opening ceramic forming chamber having sidewalls with upper edges. The ceramic chamber has an outer supporting steel jacket. The part blank is positioned over the die. The driver sheet is positioned over the part blank so that the peripheral edges of the driver sheet rest on the upper edges of the sidewalls of the forming chamber. A cover is provided for closing the chamber. It has a peripheral seal extending from an underside thereof. The cover and the chamber are clamped together in order to impinge the seal into a periphery of the driver sheet. The driver sheet and part blank are then heated to a predetermined temperature at which they exhibit superplasticity. Next a pressurized inert gas is introduced into an interior formed by the closed cover and chamber and thereafter released so that the driver sheet presses and forms the part blank around the die. The peripheral edges of the part blank are free to draw in during the forming to thereby avoid any undesired necking or thinning. The cover is lifted from the chamber and the formed driver sheet and part blank are removed.

摘要翻译： 改进的超塑性成形方法包括以下步骤：选择相对较大的驱动片和相对较小的部分坯料，它们均由钛，钛合金或能显示超塑性的其它金属制成。 将陶瓷模具放置在具有具有上边缘的侧壁的向上开口的陶瓷成形室的底壁上。 陶瓷室具有外部支撑钢外套。 零件坯料定位在模具上。 驱动片位于零件坯件上方，使得驱动片的周边部分位于成形室的侧壁的上边缘上。 提供用于封闭腔室的盖子。 它具有从其下侧延伸的外围密封件。 盖和腔被夹在一起以便将密封件撞击到驱动片的周边。 然后将驱动片和零件坯料加热至预定的温度，在此温度下它们表现出超塑性。 接下来，将加压的惰性气体引入由封闭的盖和腔室形成的内部中，然后释放，使得驱动片材压制并在模具周围形成零件坯料。 零件坯料的周边边缘在成形期间自由地拉入，从而避免任何不希望的颈缩或变薄。 将盖从室中提起并且形成的驱动片和部件坯件被移除。

公开(公告)号：US4833768A

公开(公告)日：1989-05-30

申请号：US187601

申请日：1988-04-28

申请人： Richard C. Ecklund ,  Masashi Hayase ,  Robert J. Walkington

发明人： Richard C. Ecklund ,  Masashi Hayase ,  Robert J. Walkington

IPC分类号： B21D26/055 ,  B21D47/00 ,  B23K20/00

CPC分类号： B21D26/055 ,  B21D47/00 ,  Y10S72/709 ,  Y10T29/49805 ,  Y10T29/49861

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。