深拉

Cup drawing die has been used widely in automobile, tractor, airplane, horologe, electrical appliance and instrument products. It is important to study and develop three-dimensional CAD system of cup drawing die.

筒形件拉深模具在汽车、拖拉机、飞机、钟表、电器和仪表产品中，均有广泛应用，研究、开发三维筒形件拉深模CAD系统，对于提高模具设计效率和质量，推进模具CAD的普及和发展，具有重要意义。

During the process of pulling and stretching,the quality of pulling and strething parts mainly show: wrinkle、plosion thin、rebound、lug etc.

在薄板拉深过程中，拉深件的质量问题主要表现为起皱、破裂、变薄、回弹、凸耳等。

Taking drawing of tail lamp strength plate in a car for example, the characteristics of drawing complex components with thin steel sheet has been described with some solutions for quality defection during the process of tooling adjustment.

摘要以一款轿车尾灯加强板为例，说明了薄板复杂拉深类冲压件在拉深时的特点，同时提出了模具调整过程中相关缺陷问题的解决措施。

Harbin 150001, China）Abstract: Based on the mould features, the fluid mechanics models were founded. Integrating with the finite element method, the hydro-mechanical deep drawing of alumite LF6 was simulated. The alumite LF6 was formed by hydro-mechanical deep drawing, and the reasonable process parameters were obtained.

摘 要：根据模具几何特征，通过建立流体力学模型描述液体对板料单元的动态影响，结合有限元数值模拟技术对塑性差、难成形材料防锈铝LF6的充液拉深进行数值模拟，并进行实验研究，得到了防锈铝充液拉深合理工艺参数。

Based on the mould features, the fluid mechanics mode ls were founded. Integrating with the finite element method, the hydro-mechanical deep drawing of alumite LF6 was simulated. The alumite LF6 was formed by hydro -mechanical deep drawing, and the reasonable process parameters were obtained.

根据模具几何特征，通过建立流体力学模型描述液体对板料单元的动态影响，结合有限元数值模拟技术对塑性差、难成形材料防锈铝LF6的充液拉深进行数值模拟，并进行实验研究，得到了防锈铝充液拉深合理工艺参数。

RESULTS: The mild traction group showed angulus anterior individual neuron slightly engorged, neuron and nerve fiber morphous was normal essentially; individual substantia alba demyelinates in fragmentis; medullary sheath and auxiliary fibers of nerve root were hydropsia slightly without conspicuous myelinolysis. The moderate traction group demonstrated myelinolysis change in the spinal cord, and neurofibras lined up chaos, auxiliary fibers disaggregated, neuron dropsy, tigroid body disappeared with karyopycnosis and anachromasis in neurons; nerve root showed myelinolysis. The severe traction group displayed a great demyelination region; anterior motor neurons with karyopycnosis and anachromasis; myelinated nerve fiber of nerve root shrinked, decreased in number, with severe demyelination changes.

结果：轻度牵拉组牵拉侧前角个别神经元稍肿胀，神经元及神经纤维形态基本上正常，个别白质小片状脱髓鞘样改变，神经根髓鞘和轴索轻度水肿，脱髓鞘不明显；中度牵拉组白质有脱髓鞘改变，神经纤维排列紊乱，轴索崩解、断裂；灰质神经元水肿明显加重，前角运动神经原细胞尼氏体消失，核固缩、深染，神经根髓鞘和轴索水肿，局部轻度脱髓鞘改变；重度牵拉组牵拉侧白质为不规则的大片脱髓鞘区，前角运动神经元胞体固缩、变形、核深染，神经根有髓神经纤维萎缩、数目减少，重度脱髓鞘改变。

The intellectualization of axisymmetrical workpiece is an important research field of sheet-metal-forming intellectualization and is the basis of intellectualization of complicated curved face workpiece.

轴对称件拉深成形的智能化是板材成形智能化研究的一个重要领域，是研究复杂曲面件智能化拉深成形的基础。

The fluid takes an important role in the hydromechanical deep drawing, but the research whick the fluid action is effectively integrated with the sheet metal forming is deficient.

充液拉深中的流体流动行为在充液拉深过程中起著重要的作用，但目前对流体的流动规律和如何把流体压力作用与板料的成形有效地结合起来缺乏深人的研究。

This article focuses on the washing machine inside the barrel process analysis, process drawing program to identify and design of deep drawing dies.

本文中重点阐述洗衣机内桶工艺分析、拉深工艺方案的确定以及拉深模具设计。

After analyzing a large number of typical deep-drawing process design plans, process design knowledge of deep-drawing process is summarized.

在分析了大量的典型拉深件成形工艺方案的基础上总结了拉深件工艺设计知识，并将它们按照冲压件工艺设计过程进行模决化组织。

This brought fixed cost, but it also is meant at the same time use a source to won't make you singlehanded assume a problem.

这带来了一定的成本，但它同时也意味着使用开源不会让你独力承担问题。

He gained a small fortune in real estate.

他在房地产上发了一笔小财。