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]. The limit of relative bending radius of computer numerical control (CNC) bending is 1.5 by using special mandrel and tooling [9,10]. A push-bending was proposed to manufacture aluminum alloy tubes... manufactured by Harbin Institute of Technology (HIT, China). The shear hydro-bending tooling includes left punch, right punch, fixed die and movable die, as shown in Fig. 1. Axial feeding and tangential stroke......
tooling of creep age forming 首先,进行常温静力加载实验.调节螺钉高度对构件施加载荷,并保证构件蒙皮与下模紧密接触；保持构件几何变形5 min后卸载；其次,进行高温蠕变时效实验.首先,对构件加载并保证其与下模紧密贴合；然后将模具与构件放入时效炉中进行高温处理,设定构件的时效温度为120 ℃,时效总时间为24 min；最后,结束高温,打开炉门,在构件空冷结束后卸载螺钉加载... to control springback effects[J]. Computers and Structures, 2006, 84(26/27): 1651-1663. [14] KARAFILLIS A P, BOYCE M C. Tooling design in sheet metal forming using springback calculations[J]. International......
with the existing methods used to make FML parts, this new approach eliminates the prerequisite of heating/solidification/ reheating of the blank assembly/tooling and the requirements to strictly control.... Furthermore, the needs to make a different set of tooling (punch/die) for each layer of the multi-structural part are also eradicated. A detailed literature survey and discussion about the advantages......
boost device. The tooling parameters are shown in Table 1 and Table 2[14]. Table 1 Tooling geometry dimensions Table 2 Mandrel geometry dimensions Different friction conditions are set to lubricate... the bending fail, such as toolings rigidity and bender’s stability, which is up to the quality of the bender and toolings. It is observed that the tooling rigidity influences the wrinkling instability......
) [8] and TC4 sheets warm deep drawn at 400 °C [9]. According to LAI et al [8], the formability of TC4-tailored welded blanks (TWBs) can be enhanced by elevated tooling temperatures, and the optimum forming behavior of TC4-TWB is achievable under the nearly isothermal forming condition at (550±10) °C for both tooling and TWB specimen. Thus, it is believed to be a practical method to achieve bending......
the same conditions. Fig.1 Schematic of tooling used in VPB test The Automated Strain Analysis and Measurement Environment (ASAME, CamSys Inc., US) (see Fig.2) was used to analysis the strain......
with different thickness and/or properties offers various advantages. It is possible to reduce the mass of a specific component, to lower the manufacturing costs and to lower tooling numbers and costs [3-4......
modelling and tooling design for near net shaped components using hot isostatic pressing [J]. J Mater Process Technol, 2007, 182: 39-49. [10] KHOEI A R, AZAMI A R, AZIZI S. Computational modeling......
: 5379-5386. [7] WOHLER T. Rapid prototyping, tooling and manufacturing state of the industry annual worldwide progress report[R]. Colorado: Wohlers Associates, Inc., 2005. [8] MURR L E, AMATO K N, LI Shu......
high velocity forming of EMF to form the whole metal parts alone. Due to the practical limits of strength of tooling materials and the capacity of capacitor bank, the electromagnetic forces cannot be made arbitrarily large to form large parts. To reduce the requirements of the robust tooling and the large capacitor bank, the high power pulses will be applied only in the final forming and only......
