lumber是什么意思

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用法例句

The expression approach of sheet metal forming defects towards the integration of FEM with optimization method;

面向数值模拟和优化集成的板材成形缺陷的量化表示

Two methodologies for the simulation of ductile damage in sheet metal forming processes;

金属板材成形中拉深损伤模拟的两种求解方法

Wrinkle and fracture are great faults during sheet metal forming, and hold-banker force(HBF) is an important technologic parameter of contronlling sheet metal forming.

在板材成形中,起皱和拉裂是主要的缺陷,而压边力是控制板材成形的重要工艺参数。

Application of ductile fracture criterion to prediction of forming limit in aluminum alloy sheet forming;

基于韧性断裂准则的铝合金板材成形极限预测

Mechanical property indexes of materials in sheet forming are analyzed by way of comparing one way drawing forming with two way equal drawing forming.

本文通过单向拉伸与双向等拉的对比计算 ,对在板材成形中材料机械性能指标结果进行了分析 ,认为将单向拉伸实验测出的机械性能指标直接用于板材成形有较大的片面性 。

The advances of finite element simulation of sheet forming processes are illustrated by a comparison of several simple problems and benchmark tests widely studied by many researchers in different periods.

本文以不同时期引起人们广泛注意的标准考题１）为主要线索，对板材成形有限元数值模拟的发展作了简要的综述。

Application of magnetostrictive displacement sensor in sheet metal forming control system;

磁致位移传感器在板材成型控制系统中的应用

The Research on Calculation of Springback and Shape Adjusting for Adjustable Plate Forming Device

基于活络式板材成形装置板材回弹量及压点调形计算的研究

Research on the formability of 2E12 aluminum alloy

2E12铝合金板材成形性能试验研究

Research on Forming Limits of Sheet Metal Basing on Continuum Damage Mechanics;

基于连续损伤力学的金属板材成形极限研究

Modularization Development of Pre-and Post-Processors of CAE Software KMAS for Sheet Forming Based on COM;

板材成形CAE软件KMAS前后处理器的COM组件化开发

Technological Parameter and Forming Rule Study of Metal Sheet's Laser Forming

金属板材激光成形工艺参数及成形规律研究

Research on the Key Problems of NC Incremental Sheet Metal Forming;

金属板材数控渐进成形关键技术研究

Study on Laser Bending for Metal Sheets and Mechanism;

金属板材激光弯曲成形及其机理研究

Hot Formability of Ti-Ni Alloy Sheet;

Ti-Ni合金板材热成形性能研究

Research on Gas Bulging Forming of AZ31 Magnesium Alloy Sheet in High Temperature;

AZ31镁合金板材高温气胀成形性能研究

Study on Numerical Simulation and Experimental Research of Sheet Metal HydroForming;

板材液压成形的数值模拟及实验研究

Finite Element Simulation of Sheet Metal Deep Drawing Process;

金属板材深冲成形过程的有限元模拟

Hot Drawing Forming and Simulation of AZ31B Magnesium Alloy Sheet;

AZ31B镁合金板材热拉深成形及数值模拟

Research on the Drawability Properties of AZ31B Magnesium Alloy Sheets on Warm Forming

AZ31B镁合金板材温成形冲压性能研究

A Study on Surface Reconstruction of Sheet Metal CNC Incremental Forming

金属板材数控渐进成形曲面重建研究

The Factors of Effecting the Punching Properties of Megnesium Alloys

影响镁合金板材冲压成形性能的因素

A New Process of Hydro-mechanical Deep Drawing for Magnesium Alloy Sheets at Gradient Temperature

镁合金板材液压梯温拉深成形新工艺

Research on the property of 6061 alloy sheet drawing

6061铝合金板材冲压成形性能研究

Forming limits and cavitation behaviors of superplastic Al6061/20SiC_w sheet

Al6061/20SiC_w板材的超塑成形极限与空洞行为