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- Keywords aluminum;extrusions;stretch bending forming;numerical simulation; 铝合金;型材;拉弯成形;数值模拟;
- stretch bending forming 拉弯成形
- stretch bend forming 拉弯成形
- The double groove steel is suspended under the two nodes of bottom chord of steel roof truss to prevent the bottom chord from stretch bending. 文章论述了在设计中采用钢屋架下弦两节点下悬吊双槽钢作为分布梁避免钢屋架下弦拉弯工作。
- Write and edit the simple program of CNC milling machine and stretch bending machine. 编写和修订简易的CNC数控铣床和拉伸折弯机（与普通CNC语言相同）程序。
- Clamps hold the wood laminations to the bending form until they dry. 用夹具夹住层积木毛料，固定需要的弯曲形态，直到木材干透。
- It also describes the development of heat roller bend forming technique abroad. 还就因外加热辊弯成型技术的发展作了评述。
- The key to numerical simulation of stretch bending of extrusions is determination of loading path of the clamped ends of extrusion. 型材拉弯成形有限元模拟关键在于型材夹持端运动轨迹的合理描述。
- The second body can therefore easily fly， spin， roll， twist， stretch， bend， bounce. 第二身体因此能够轻易地飞行、旋转、滚动、扭曲、伸展、弯曲、弹跳。
- In this paper, a research was conducted on the on-line identification of material properties in stretch bending process and the prediction of the springback. 本文由此入手,对拉弯成形中材料性能参数的在线识别及拉弯成形回弹预测进行了研究。
- FEM analysis software of DYNAFORM was used to simulate the bending form for the support. 运用DYNAFORM有限元数值模拟分析软件,对汽车转向柱后支架的弯曲成形进行了数值模拟。
- Technology: sandblasting, bending forming, laser engraving, three-dimensional sculpture, seamless hot, bonding, screen printing. 工艺范围：开料，喷砂，热弯成型，激光雕刻，三维雕刻，无缝热压，粘结，丝网印刷。
- Further more,as a part of the research of foundational experiment,it enriches the systematical research of tube bending forming ... 同时,为管材弯曲成形机理研究作了相应的基础准备工作。
- To analyse stretch bending of narrow strip by numerical calculation, taking the loading history into account, the deformed zone was divided into many elements to determine their strain by the condition that constant volume remains in deformation. 摘要在考虑加载历史的情况下，为采用数值方法研究窄板拉弯成形，将变形区划分成若干个单元，按塑性变形体积不变条件，确定单元应变。
- The bent form of the tree is the work of wind and rain. 弯曲的树为风雨所致。
- The technique character of the baffle of inspirator was introduced.A feasible process plan was determined and the integral piercing blanking bending forming die was designed. 介绍了呼吸器挡板零件工艺特点,确定了合理的工艺方案,设计1副落料、冲孔、压弯三道工序一次成形的模具。
- The establishment and development of theory on the elastic plastic stretch bend straightening were introduced,and the calculation for the residual elongation of straightened strip was presented. 介绍弹塑性拉伸弯曲矫直理论的建立和发展,以及拉弯矫直后带材残余延伸率的计算。
- Aimed at large arc shape frame, the die with once bending forming structure is designed, the working procedure is reduced, and the costs are lowed as well. 针对大圆弧形机壳,设计了一次折弯成形结构模具,减少工序,降低成本。
- The results show that the medial surface wrinkling and the lateral surface unstability are the main failure form of the thin-wall stainless steel tubes in cold bending forming. 结果表明，薄壁不锈钢管件弯曲冷成形的主要失效形式是内侧部分的起皱和外侧部分的失稳。
- This paper introduces the structure and operating principle,the design method of critical parts,and the calculation of bending forming forces of double-roller bending dies for load bearing supports. 主要介绍了承力隔架用“双转辊弯曲模具”的结构、工作原理、主要工作零件设计及其弯曲力的计算方法.
