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- A calculation theory of diffuse neck-down and local neck-down limit strain curves during bulge forming is put forward. 提出了复合管胀形过程中发生分散性失稳及集中性失稳时极限应变的计算理论。
- By plasticity increment theory,the stress strain numerical calculate methods of bellows bulge forming, solvers theory calculating problems of bellows bulge forming technology are put forward. 采用塑性增量理论，建立了波纹管液压胀形的应力、应变数值计算方法，解决了波纹管液压胀形工艺的理论计算问题。
- However,there are few papers published to deal with the plastic bulge forming (the application of BF technique to polymer processing,PBF). 挤胀成型作为一种金属压力加工方法已经得到深入研究并获得广泛的实际应用。
- Based on the FEM simulation results, a series of UPVC branch pipes were prepared successfully in a custom-built bulge forming test-bed. 在模拟和优化的基础上，利用自行设计的实验台成功地实现了UPVC三通管的挤胀成型。
- Numerical simulation of the vacuum hot bulge forming of BT20 Titanium alloy was carried out using the finite element software MSC. 建立了BT20钛合金筒形件真空热胀形的二维非线性准静态热弹塑性有限元模型。
- In this paper, with the help of theory of forming limit and plasticity failure, the forming limit of a thin claded tube in bulge forming is analyzed. 采用成形极限理论及塑性失稳理论,将单层管胀形成形极限理论推广到复合管,对复合管胀形成形极限进行了分析。
- Based on this theory, the new conceit of bulge forming technology of minimal thinned rate bellows is formulated and realized, minimal rate bellows is developed successfully. 在该理论分析基础上，制定并实现了小变薄率胀形波纹管的特殊液压胀形工艺的新构思，成功地研制出了小变薄率波纹管。
- Theory Research of Plastic Bulge Forming Process 塑料挤胀成型过程的理论研究
- Does your handwriting slope forward or backward? 你的书法向前斜还是向后斜?
- Structure Design of Backward Bulging Die 反向起鼓模具结构设计
- Youth looks forward and age backward . 青年展望未来，老人回顾过去。
- She kept moving backward ( s ) and forward ( s ). 她不停地来回走动。
- By bulging forming technology analysis of color kinescope shaded cover, die structure and main parts designs are introduced. 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 superplastic gas bulging forming of a rolled magnesium alloy AZ31 at different temperature and gas pressure was researched. 研究了AZ31镁合金板材不同工艺条件下的气胀成形性能。
- You can travel forward and backward through time. 你可以通过时间穿梭于过去和未来。
- Simulation of Hydraulic Compound Bulge Forming of Tee-tube 三通管复合胀形过程模拟
- Youth looks forward and age backward. 青年展望未来，老人回顾过去。
- My foot caught in a creeper and I pitched forward. 藤蔓缠住我的脚，使我向前倒下。
- Research of plastics bulge forming and processing equipment 塑料挤胀成型工艺及设备研制
- Einstein put forward his new theory of relativity. 爱因斯坦提出了相对论的新学说。
