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- Keywords drawing coefficient;stretch forming die;spraycone cavity of die;spraycone blank holder; 拉伸系数;拉伸成形模;锥形凹模;锥形压边圈;
- stretch forming die 拉伸成形模
- According to the principle that the volume of work piece is invariable during die forging, combining the roughcast pre forming and heat stretch forming process, the steel half spherical shell with double flange( equator and waist flange) can be forged. 按照模锻体积不变原理，锻造预成形毛坯与热拉伸成形工艺相结合的方法，压制出带双法兰（道法兰和腰法兰）钢半球壳。
- In this paper, an artificial neural network is built in the research of springback prediction during the stretch forming process. 以蒙皮拉形为对象,探索了人工神经网络技术在拉形回弹预测中的应用。
- In our manufacture, HFP stretch forming is first both in process and in material(AK4-1),and it is a key role in aircraft manufacture in out country. 1材料的高筋条壁板条拉伸成型,目前在我国飞机制造业中,不论结构还是材料、工艺成型都是全新的。这一结构及工艺成型研究对发展我国的航空制造业有着重要作用。
- The die structure for the shaping was simplified due to the cancel of a prebending forming die. 采用该方法模具结构简单,生产效率高,产品质量好,与同类技术相比减少了1副预弯成形模。
- To study the deformation behavior of skin parts during the process of stretch-forming, a 1MN numerical control skin stretch forming testing system was developed. 为研究蒙皮零件在拉伸成形过程中的变形行为,自行研制开发了1MN数控蒙皮拉伸成形试验机系统。
- The design of forming die and manufacturing engineering for CRT shadow mask was described and the flow chart was given. 介绍了彩色显像管荫罩成形模设计与制造工艺,给出了荫罩成形模的设计流程。
- The spinning lathes is mainly used for noncutting process forming of thin walled rotary workpieces, with functions of stretch forming, rib-forming, reefing, flanging etc. 本系列旋压机是生产旋压皮带轮的专用设备。旋压皮带轮做为一种新工艺产品，已经广泛用于汽车发动即中，如电机轮，水汞轮、空调轮和风扇轮等。
- The construction and processing (including the EDM for detent) of net shape forming die for detent gear have been emphatically studied. 带爪齿轮目前被广泛应用于各种摩托车的档位机构。
- The relative aspects regarding the forming of the boss of the flywheel shell was analyzed, and a simple_structure forming die and its working process were introduced. 分析了飞轮壳凸台成形模的有关问题 ,介绍了一种结构简单的成形模及其工作过程
- 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 results demonstrate that the life of bakelite forming die can be effectively improved by optimzing its heat treatment process and changing it parameters. 研究结果表明，通过优化和改进模具的热处理工艺及其参数，有效地改善了胶木成型模具的使用性能，提高了模具的使用寿命。
- Through analyzing the forming process of the parts, a new_conception and practical compound forming die with simple structure for floating slides was introduced. 通过对工件的成形工艺分析,介绍一种构思新颖巧妙,结构简洁实用的浮动滑块复合成形模具设计。
- The paper puts forward a reconfigurable sheet forming die, it is constructed with detached poles.The die can be reconfigured for variable surfaces of die with "Variant heads". 提出了一种可重构的板料冲压成形模具,其使用若干个离散的可伸缩的压杆组合成模具体,通过更换与板件局部形状相似的冲压头和调节压杆的伸缩量构成模具成形面,以适应成形板件的形状。
- The place used to be a stretch of barren land. 早先这里是一片不毛之地。
- Can you work for six hours at a stretch? 你能不能不休息连续工作6小时吗？
- The lorry skidded on a stretch of black ice. 货车在薄冰路面上打滑。
- The controllable mould and sheet forming die were designed and manufactured for researching the influences of the shearing field on the polymer structure and properties of PET sheet. 设计制造了一套可控剪切场熔体取向专用口模和片材成型口模，用于研究剪切场对PET片材聚集态结构和性能的影响。
