公开(公告)号：WO2003013757A1

公开(公告)日：2003-02-20

申请号：PCT/GB2002/003634

申请日：2002-08-07

Applicant: UNIVERSITY OF THE WEST OF ENGLAND, BRISTOL ,  ACKERMAN, Michael, Colin ,  FLOWER, Terry ,  KEEVIL, Allan ,  WAY, Jerome ,  JOCELYN, Alan ,  NASH, Douglas ,  KAR, Aravinda

Inventor： ACKERMAN, Michael, Colin ,  FLOWER, Terry ,  KEEVIL, Allan ,  WAY, Jerome ,  JOCELYN, Alan ,  NASH, Douglas ,  KAR, Aravinda

IPC: B21D26/02

CPC classification number: B21D26/055

Abstract: A method of forming a workpiece (18) comprises: holding the workpiece adjacent a mould (20); using a laser (30) to heat at least a part of the workpiece to a temperature sufficient to induce superplasticity; and applying a fluid pressure to the workpiece, so that it takes the shape of the mould. This has the advantage that the superplastic properties of the material can be used to form the workpiece precisely to the required shape, without needing to heat all of the processing chamber to the superplastic temperature. Before using the laser to heat the workpiece to its superplastic temperature, the laser can be used to heat the whole of the workpiece to a substantially uniform temperature to anneal it. Similarly, after using the laser to superplastically form the workpiece, the laser is used to heat the whole of the workpiece to a substantially uniform temperature to remove any residual stresses. This has the advantage that the whole of the forming can be carried out as a single process, in a single processing apparatus.

Abstract translation: 一种形成工件（18）的方法包括：将工件保持在模具（20）附近; 使用激光器（30）将至少一部分工件加热到足以引起超塑性的温度; 并向工件施加流体压力，从而使其具有模具的形状。 这具有这样的优点：材料的超塑性能可用于将工件精确地形成为所需形状，而不需要将所有的处理室加热到超塑性温度。 在使用激光将工件加热到其超塑性温度之前，激光可用于将整个工件加热至基本均匀的温度以使其退火。 类似地，在使用激光器超塑性地形成工件之后，使用激光将整个工件加热到基本上均匀的温度以去除任何残余应力。 这具有以下优点：整个成型可以在单个处理装置中作为单个工艺进行。

公开(公告)号：WO01051229A1

公开(公告)日：2001-07-19

申请号：PCT/GB2001/000109

申请日：2001-01-11

IPC: B21D26/031 ,  B21D26/045 ,  B21D26/047 ,  B21D26/055 ,  B21D26/02

CPC classification number: B21D26/055 ,  B21D26/031 ,  B21D26/045 ,  B21D26/047 ,  B21D37/16

Abstract: Apparatus for superplastically forming large parts from titanium comprising: a furnace (10) having an interior, the inside surface of the furnace (10) being contoured and finished so as to form a mould for the part to be superplastically formed; means (70) for heating the interior of the furnace (10); and a supply (60) of an inert gas. The surface of the mould is adapted to receive a substantially unformed titanium blank (80). The heating means (70) is adapted to heat the titanium blank (80) to the required temperature for superplastic forming. The supply (60) of the inert gas is operable to exert a pressure onto the surface of the titanium blank (80) furthermost from the surface of the mould such that the inert gas causes the titanium blank (80) to deform and take up the shape of the mould, thereby forming the required part. The heating means (70) includes one or more electrical induction coils positioned in the furnace (10) so as to be on the side of the titanium blank (80) furthermost from the mould when that titanium blank (80) is positioned in the furnace (10) for superplastic forming in the mould, such that the or each induction coil induces a current in the titanium blank (80) which is heated thereby.

Abstract translation: 用于从钛中超大量形成钛的部件的装置包括：具有内部的炉子（10），所述炉子（10）的内表面被成形和加工成形成用于所述部件被超塑性成型的模具; 用于加热炉子（10）内部的装置（70）; 和惰性气体供应源（60）。 模具的表面适于接收基本上未成形的钛坯料（80）。 加热装置（70）适于将钛坯（80）加热至超塑性成形所需的温度。 惰性气体的供给装置（60）可操作以将压力施加到模具表面最远的钛坯料（80）的表面上，使得惰性气体使得钛坯料（80）变形并吸收 模具的形状，从而形成所需的部件。 加热装置（70）包括位于炉子（10）中的一个或多个电感应线圈，以便当钛坯料（80）位于炉子中时位于最靠近模具的钛坯料（80）的一侧 （10），用于模具中的超塑性成形，使得该感应线圈或每个感应线圈在钛坯（80）中感应电流，由此加热。

公开(公告)号：WO01019546A1

公开(公告)日：2001-03-22

申请号：PCT/JP2000/006262

申请日：2000-09-13

IPC: B21D26/055 ,  B21D26/02

CPC classification number: B21D26/055

Abstract: A blow molding method for superplastic materials, which uses a time-related gas pressure, based on a maximum strain velocity, as a time-related target gas pressure pattern when a metal plate having superplastic characteristics is heated to a preset temperature and then is blow-molded at high speed, and which comprises a data input step for inputting the molding shape data of the metal plate and the characteristic data of the metal plate material for storing in a storage device, a step of determining a time-related target gas pressure pattern from the input molding shape data and the material characteristics data, a step of dividing the determined target gas pressure pattern into an appropriate number of segments in terms of time, a step of determining a gas pressure control parameter for each divided target gas pressure pattern segment, and a step of controlling a gas pressure pattern according to the determined gas pressure control parameters.

Abstract translation: 一种超塑性材料的吹塑成型方法，当将具有超塑性特性的金属板加热到预定温度然后被吹制时，将基于最大应变速度的时间相关气体压力用作时间相关的目标气体压力图案 并且包括用于输入金属板的模制形状数据的数据输入步骤和用于存储在存储装置中的金属板材料的特性数据，确定时间相关目标气体压力的步骤 根据输入成型形状数据和材料特性数据的图案，将所确定的目标气体压力图形在时间上划分为适当数量的段的步骤，确定每个分割的目标气体压力模式的气体压力控制参数的步骤 段，以及根据确定的气体压力控制参数来控制气体压力模式的步骤。

公开(公告)号：WO00016925A1

公开(公告)日：2000-03-30

申请号：PCT/GB1999/002962

申请日：1999-09-07

IPC: B21D26/055 ,  B21D26/02

CPC classification number: B21D26/055

Abstract: A method of superplastic forming at least two superplastically formable metal workpieces (34, 35) comprises producing a die (10) having a face (22) contoured to a predetermined shape. The superplastically formable metal workpieces (34, 35) are placed on the face (22) of the die (10) and another metal workpiece (36, 38 and 40) is placed on the remaining faces (24, 26, 28, 30, 32 and 34) of the die (10). The edges of at least one of the superplastically formable metal workpieces (34, 35) are sealed (42) to the edges of the other metal workpieces (36, 38 and 40) to form a sealed assembly (46) such that the metal workpiece (35) and the die (10) are enclosed by the sealed assembly (46). The interior of the sealed assembly (46) is evacuated and the sealed assembly (46) is placed in a pressure vessel. Sufficient heat and pressure is applied to the interior of the pressure vessel to superplastically form the superplastically formable metal workpieces (34, 35) at isostatic pressure to the predetermined shape of the face (22) of the die (10) and to diffusion bond the metal workpieces (34, 35) together. The superplastically formed metal workpiece (34) and the other metal workpieces (36, 38 and 40) are removed from the die (10).

Abstract translation: 至少两个超塑性成形金属工件（34,35）的超塑性成形方法包括制造具有成形为预定形状的表面（22）的模具（10）。 将超塑性成形金属工件（34,35）放置在模具（10）的表面（22）上，将另一个金属工件（36,38和40）放置在其余的表面（24,26,28,30， （10）的模具（32和34）。 至少一个可超塑性金属工件（34,35）的边缘被密封（42）到另一个金属工件（36,38和40）的边缘，以形成密封组件（46），使得金属工件 （35）和模具（10）被密封组件（46）包围。 将密封组件（46）的内部抽真空，将密封组件（46）放置在压力容器中。 将足够的热和压力施加到压力容器的内部，以等压压力将超塑性成形金属工件（34,35）超塑成型到模具（10）的面（22）的预定形状，并将 金属工件（34,35）在一起。 将超塑性金属制工件（34）和其它金属工件（36,38和40）从模具（10）上移除。

公开(公告)号：WO99066095A1

公开(公告)日：1999-12-23

申请号：PCT/US1998/012815

申请日：1998-06-18

IPC: B21D5/02 ,  B21D26/055 ,  C22F1/18

CPC classification number: B21D26/055 ,  B21D5/02 ,  C22F1/183

Abstract: Thick plate is difficult to form because it cracks when localized strain exceeds the limits of the material. Forming thick titanium would significantly reduce manufacturing costs for finished parts by reducing machining time and by allowing standard stock blanks to be used where twelve inch thick or thicker blanks are needed today. Using finite element analysis, we model the plate forming to determine processing constraints that allow forming the thick, coarse grained alpha-beta titanium plate according to SPF principles with controlled strain rates. We form the part at an elevated temperature with a press ram. We complete the part by machining the formed plate, thereby greatly machining time and material cost. Typically we bend a 20 cm thick plate to about 130 DEG with a 5-6 inch inner radius bend, or we form 2 inch thick plate with a complex curvature exceeding twelve inch depth over an area of 30 x 60 inches.

Abstract translation: 厚板难以形成，因为当局部应变超过材料的极限时，它会发生裂纹。 通过减少加工时间，并且通过允许使用标准坯料坯料来形成厚钛将大大降低成品零件的制造成本，现在需要十二寸厚或更厚的坯料。 使用有限元分析，我们对板成型进行建模，以确定允许根据具有受控应变速率的SPF原理形成厚的粗粒α-β钛板的加工约束。 我们用压力机在升高的温度下形成零件。 我们通过加工成型板完成零件，从而大大加工了时间和材料成本。 通常，我们用一个5-6英寸内半径的弯曲将20厘米厚的板弯曲到约130度，或者在30×60英寸的区域上形成具有超过12英寸深度的复杂曲率的2英寸厚的板。

公开(公告)号：WO99051372A1

公开(公告)日：1999-10-14

申请号：PCT/GB1999/001007

申请日：1999-03-31

IPC: B21D26/055 ,  E04C2/08 ,  E04C2/34 ,  B21D26/02

CPC classification number: B21D26/055 ,  E04C2/08 ,  E04C2/34 ,  Y10T29/4981 ,  Y10T428/24149 ,  Y10T428/24273

Abstract: The present invention provides a method of forming and a composite superplastically formed structure comprising a panel (40) provided by at least a pair of superplastically-formed sheets (12, 14, 16, 18), which together form a plurality of cells (42), the panel having an opening (20) therein or therethrough defined by a side wall (48) of a respective one, or side walls (48) of respective ones, of the cells; and an insert plug (38) received in the opening and bonded to the said wall or walls.

Abstract translation: 本发明提供一种形成方法和复合超塑性结构，其包括由至少一对超塑性成形片（12,14,16,18）提供的面板（40），它们一起形成多个单元（42 ），所述面板在其中或穿过其中的各个单元的侧壁（48）或相应单元的侧壁（48）限定的开口（20）; 和插入式插头（38），容纳在开口中并结合到所述壁或壁上。

公开(公告)号：WO1998013166A1

公开(公告)日：1998-04-02

申请号：PCT/US1997014105

申请日：1997-08-11

Applicant: THE BOEING COMPANY

Inventor： THE BOEING COMPANY ,  SANDERS, Daniel, G.

IPC: B23K20/02

CPC classification number: B21D26/055 ,  B23K20/02

Abstract: Compression diffusion bonding according to the present invention uses a CRES template to apply increased pressure in the areas designated for diffusion bonds (DB) to improve the bond quality and to reduce the processing time. The CRES template is patterned to correspond with the DB arrangement in the superplastically formed part. The forming press forces the template against the pack of SPF sheets to provide 300 - 1200 psi or more pressure along the bond lines to speed their formation.

Abstract translation: 根据本发明的压缩扩散接合使用CRES模板在指定用于扩散键（DB）的区域中施加增加的压力，以提高粘结质量并缩短加工时间。 图案化CRES模板以与超塑性部件中的DB布置相对应。 成型压力机迫使模板抵抗SPF片材组，以沿着粘合线提供300-1200psi或更大的压力以加速它们的形成。

公开(公告)号：WO1995027575A1

公开(公告)日：1995-10-19

申请号：PCT/US1995004223

申请日：1995-04-06

Applicant: THE BOEING COMPANY

Inventor： THE BOEING COMPANY ,  FISHER, John, R.

IPC: B21D26/02

CPC classification number: B21D26/055 ,  Y10S72/709 ,  Y10T29/49805

Abstract: A process for superplastically forming a part from a blank of superplastic material such as titanium alloy, including enclosing and capturing a sheet of superplastic material having uniform thickness between a die lid and a die base. The die (38) lid has a deep recess (50) where localized prethinning of the blank would minimize excessive thinning of the formed part elsewhere on its topography. The peripheral edges of the blank is clamped between the lid and the base by exerting a squeezing force, typically be a press, and the die is heated, along with the blank, to the superplastic temperature of the blank. The die base is pressurized to preform portions of the blank opposite the lid recess into the recess to form a prethinned bulge. After preforming, the die lid above the blank is pressurized to reverse the prethinned bulge down into the cavity and to form the blank into the cavity. The localized prethinning facilitates forming in areas that would tend to form slowest or least and makes material available for other areas of the part that would normally become excessively thinned by virtue of the shape of the adjacent areas or depth of the die cavity, thereby making possible the tailoring of thickness in particular areas of the formed part.

Abstract translation: 一种用于从诸如钛合金的超塑性材料的坯件超塑性地形成部件的方法，包括在模具盖和模具基座之间封装并捕获具有均匀厚度的超塑性材料的片材。 模具（38）盖具有深的凹部（50），其中坯料的局部预制将使形成的部件在其形状上的其他部分的过度变薄最小化。 通过施加挤压力将坯料的周边边缘夹在盖子和基座之间，通常是压力机，并且模具与坯料一起被加热到坯料的超塑性温度。 模具基座被加压到坯料的与盖子凹口相对的预成型件部分进入凹槽中以形成预浸的凸起。 在预成形之后，坯料上方的模具盖被加压，以将预浸的凸起向下倒入腔中，并将坯料形成空腔。 局部预制有助于在倾向于形成最慢或最小的区域中形成，并且通过相邻区域的形状或模腔的深度使材料可用于通常变得过度变薄的零件的其它区域，从而使得可能 在形成部分的特定区域中裁剪厚度。