查询词典 sheet metal

Visual numerical simulations and experiments of laser peen forming on stainless SUS304 sheet metal are done.

对不锈钢SUS304板料进行了激光喷丸成形的可视化数值模拟分析和实验研究。

Shot peen forming is an important sheet metal forming process for aircraft industries. But after using CNC system, peen forming process parameters choosing in industry has been done still by trial and error or relied on a large number of pre-production tests.

喷丸成形是航空制造工业中机翼整体壁板不可替代的或者是首选的成形方法，可是在采用喷丸计算机数字控制系统后工艺参数的选择仍然依靠试验数据和操作经验，这已成为喷丸成形工艺中的瓶颈。

At the recentyears, finite element analysis method is applied in technical analysisof sheet metal forming more and more pervasively.

采用动态显式有限元算法对薄板类件多点成形过程进行数值模拟是本文的重要研究内容。本文所作的主要工作如下：1。

The research results show as follows. As plastic deformation increases, the Young's modulus of material continuously changes. This variation law is able to be described using a piecewise linear function .Hardening model and whether the variation is considered or not make great effet on springback prediction. It is proved that the springback prediction result which adopts the elastic-plastic constitutive model based on INLK hardening model and the variation of Young's modulus is considered, is more close to experimental result. After the sheet metal undergoes multiple bending, the corner radius and bending height also affect springback greatly.But the effect trend is different. At the same time, the reliability of springback research using numerical simulation is proved.

研究结果表明：材料弹性模量随塑性变形的变化是不断变化的，该变化规律可用分段线性函数进行描述；强化模型及考虑弹性模量变化与否对回弹预测有很大的影响，基于INLK强化模型和考虑弹性模量变化的弹塑性本构模型对回弹的预测结果与试验最接近；多次弯曲中圆角半径与弯曲高度对板料变形后的回弹有较大影响，但影响趋势不同；证明了数值模拟方法对回弹研究的可靠性。

To resolve the low efficiency and high energy consume problems of traditional ball mill in the preparation of micrometer and nanometer sheet metal powder ,new type ball mill was designed by combining the crushing theory and structure of traditional ball mill and mix mill.

为了解决目前普通球磨机在制备微纳米片状金属粉时存在的粉碎效率不高、能耗高等问题，结合球磨机和搅拌磨的粉碎原理和结构，设计并研制了一种内部搅拌轴和外部筒体反向旋转的球磨机。

Is a professional operation of the wholly-owned CNC machine tools, the main agent of Taiwan well-known brands,"Friend," Machining Center, CNC lathes, Taiwan Qing hung wire EDM, such as walking mold manufacturing equipment, as well as laser cutting machine, CNC folding bed, CNC punching, CNC press bed surrounding sheet metal processing equipment.

深圳市一统数控机电设备实业有限公司是一家专业经营数控机床的独资公司，主要代理台湾知名品牌"友嘉"加工中心机、CNC车床，台湾庆鸿慢走丝线切割机等模具制造设备，以及激光切割机、数控折床、数控冲床、数控压床等钣金加工周边设备。

The company owns the world's most advanced Bystronic laser cutting machine, Japan AMADA CNC punch press, such as more than 10 sets of world-class sheet metal production and testing equipment.

公司拥有目前世界最先进的瑞士百超激光切割机，日本AMADA数控冲床等十多套世界一流的钣金制作和检测设备。

"Punch press: Machine tool that changes the size or shape of a piece of material, usually sheet metal, by applying pressure to a die in which the workpiece is held."

冲床：将压力加到装有工件的模具上，以改变一片材料，通常是金属片的大小和形状的机床。

Through structural optimization, the strength and rigidity of sheet metal parts can be improved in the case of light weight.

通过对这种零件结构的优化设计，可以在轻量化的基础上实现较高的强度和刚度。

There was a high screech of sheet-metal cutting over the sawing and hammering.

刺耳的钢板切割声盖过了电锯和电锤的声音。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。