胀形后残余应力的这种有利分布，提高了球罐的抗应力腐蚀性能。
This favourable distributions of residual stresses after hydrobulging can improve the anti stress corrosion cracking ability of the spherical vessels.
详细介绍了用扩冲法对液压胀形出现凹形的护环进行修复的方法。
This article has described expanding method for repairing the concave retaining ring caused by the hydraulic bulging.
在以生产出合格零件为前提的条件下，胀形复合度有极限值存在。
Under the condition of producing qualified parts, the compound degree of stretching is limited to some extremity.
利用非线性有限元理论方法，建立了后桥壳液压胀形有限元模型。
By using non-linear finite element theory, a non-linear finite element model for hydroforming for rear axle housing is established.
根据后桥壳液压胀形的特点，选择刚塑性材料模型进行模拟分析。
According to the characteristic of hydroforming for rear axle housing, rigid-plastic material model is elected as tube blank material model process simulation analysis.
该方法在很多方面优于国际上先进的液压胀形法及常用的橡胶凸形法。
This process proves more advantageous than the advanced hydraulic bulging process abroad and the conventional rubber-bulging process in many respects.
为了进一步检验液压胀形轧辊改善板形的能力，进行了铝板轧制实验。
The aluminum strip rolling experiment is performed in order to test further the capacity of hydraulic bulging roller in improving the strip shape.
研究了多曲率旋转壳体胀形过程中各部分的应变分布及位移变化规律。
The strain distribution and displacement variation of multi-curvature revolving-shell in the hydro-bulge forming process was investigated by experimental method.
采用大变形刚塑性有限元法模拟超塑性材料轴对称锥形模约束胀形过程。
The constrained superplastic bulging process is investigated by a large rigid-plastic finite element method.
液压胀形轧辊本身的结构参数对于该技术能否成功具有举足轻重的地位。
The construction parameters of the hydraulic elastic bulging roller itself play an important part on whether the technique is successful or not.
介绍了铝合金茶壶橡胶胀形模具结构，阐明了聚氨酯橡胶制作凸模的优点。
The structure of rubber bulging die for the aluminium alloy teapot is introduced. The advantage of the manufacturing punch with the polyurethane rubber is expounded.
得出了各种因素对胀形系数的影响趋势，最后给出了提高胀形系数的方法。
The influencing of the factors are obtained. At last, the methods of raising the bulging coefficient are given.
提出应力屈服条件的应变屈服轨迹，给出了复合胀形极限成形系数的解法；
The strain yield locus of the stress yield criterion was advanced and the strain ellipse method for calculating the limit bulging coefficient was given.
散热器胀形连接装置是一种主要用来对冷却器件进行胀形连接的专用设备。
"Radiator bloated shape connect device?" is a kind of special device carrying on the "bloated connection?", for the main purpose of cooling other equipments down.
所得结论在开发及应用液压胀形轧辊系统方面具有直接的理论和实际指导意义。
The results are of theoretical and practical significance for developing and applying the hydraulic elastic bulging roll system.
采用塑性变形理论研究了薄壁管液压胀形过程中轴向载荷与内压力的变化情况。
Based on the theory of plasticity, the variety rule of internal pressure and axial force in the process of thin tube bulge forming is studied.
介绍了管材无模轴压胀形的实验，研究表明，适度的褶皱有助于提高成形极限。
It has been experimentally indicated that moderate wrinkle will make a contribution to enhancing the formability of the dieless tube hydroforming.
通过对壳体胀形过程中的容积变化量进行测定和分析得到了壳体的体积变化规律。
The law of the shell volume changing during the process is obtained by measuring and analysing the volume change amount.
通过对壳体胀形过程中的容积变化量进行测定和分析得到了壳体的体积变化规律。
The law of the shell volume changing during the process is obtained by measuring and analysing the volume ch…
研究结果表明，计算机数值模拟技术在金属复合管胀形技术研究中具有重要的作用。
It was found that the numerical simulation technology plays and important role in the study of bulging technology of metal multiunit tube.
同时，在分析单型腔简单胀形件加压曲线的基础上讨论多型胶复杂胀形件的加压规范。
Furthermore, the proper specifications of bulging pressure of complex multi-mould parts are discussed on the basis of analysing singlemould bulging parts.
简述了液压胀形三通管件的特性，分析了胀形过程中各工艺环节对三通管件质量的影响。
This article briefly describes the characteristics of hydraulic bulge forming tee tubes, and analyzes the effect of technical chains in the processing on quality of tee tubes.
并利用韧性断裂准则作为胀形高度极限的判断依据，将模拟得到的必要数据代入到准则中。
Using the ductile fracture criterion as the reference for judging the limit height of the process to put the necessary simulation results into the criterion.
本文根据液压胀形的特点，利用塑性变形原理，提出评定板材成形性能的液压胀形试验法。
According to the character of hydraulic bulge and the theory of plastic deformation, a testing method of hydraulic bulge to evaluate the forming property of sheet metals is put forward.
胀形生产实践表明，加载路径的选择和管坯的成形极限对管件成形及成形质量有着重要影响。
The practice of tube bulge shows that the choice of loading route and forming limit of tube is important to the shape and quality of produce.
基于已有的电模拟坯料展开方法，提出了一种新的关于胀形件的类等势场反推坯料展开方法。
Based on the electric analog method for blank unfold which has already exist, a new reverse educing method about bulge-blank unfold based on equipotential field is introduced.
分析了带轮成形工艺特性，介绍了皮带轮液压胀形模具结构，论述了模具结构特点和工作原理。
The technologic property and working procedure of the strap wheel was analyzed and the structure of the die, the character and working principle of the die were described.
对三角形底盘筒形件的成形工艺进行了分析，决定采用弯曲、拉深、胀形复合模等进行复合成形。
As the shape technology of triangle chassis canister is analyzed, then the processes of bending, stretching and bulging compound mould are adopted to reunite the shape.
分别比较了轴向压缩胀形和复合胀形中管件支管顶部双向拉应力、应变以及支管高度等指标的变化。
The variation of two-way tensile stress, strain distribution and branch height in the axial compressive bulging and compound bulging were compared respectively.
分别比较了轴向压缩胀形和复合胀形中管件支管顶部双向拉应力、应变以及支管高度等指标的变化。
The variation of two-way tensile stress, strain distribution and branch height in the axial compressive bulging and compound bulging were compared respectively.
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