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中文字数:6463,中文页数:6 英文字数:3744 页数:9
虚拟制造在汽车覆盖件模具制造中的应用
虚拟制造自从产生以来人们就力图给它一个统一的定义，但虚拟制造涉及的知识范围十分广泛，不同的研究人员，出发点和侧重点也不同，因而理解也大不相同，导致虚拟制造至今为止仍没有一个确切的定义。
随着国民经济的高速发展，人民生活水平的大幅提高，人们对汽车的需求量越来越大，汽车模具的市场竞争也越来越激烈。“质量好”、“精度高”、“价格低”、“交货期短”等是人们对现代汽车模具的基本要求。但是，汽车模具是一种大型模具，它体积庞大、结构复杂、尺寸精度和表面粗糙度要求较高，制造相当困难。而且，为了减轻模具的重量采用的底座掏空的薄壁式结构和为了维修容易中间型面采用的镶拼结构，给设计和制造带来了更大的困难。通常来说，一个汽车覆盖件零件需要3道或3道以上的工序才能完成，也就是说，生产一个汽车覆盖件零件至少需要3副或3副以上的模具。如果汽车覆盖件零件在设计的时候没有考虑到实际制造情况，那么设计出来的模具在制造的时候可能根本就无法进行加工，或者是制造出来的模具无法生产出预期的产品，从而导致模具的报废，延长产品的开发周期，这种经济损失是无法想象的。但是，模具在设计阶段是无法预料在制造过程中将出现的困难的。虚拟制造技术是一种软件技术，是CAD/CAE/CAM/CAPP和仿真技术的更高阶段，它能在计算机上实现模具从设计到制造到检验的全过程，根据虚拟模型的仿真过程，可以在计算机上根据“实际”的加工情况来修改模具的设计，避免了在模具制造过程中可能出现的问题，从而达到缩短模具的开发周期、降低开发成本、提高生产效率的目的，因而是汽车模具开发最有潜力最实用最有效的技术之一。
Virtual manufacturing in the automotive panel die Manufacturing
Virtual manufacturing since people have been trying to give it a uniform definition, but the virtual manufacturing involving a wide range of knowledge, different researchers, the starting point and the focus is different, and thus also far different from the understanding, leading to virtual manufacturing is still so far do not have a precise definition.
With the rapid development of the national economy, a substantial increase in people''s living standards, people are increasing demand for motor vehicles, automotive mold has become increasingly fierce market competition. "Good quality", "high accuracy", "low prices", "short delivery time" and other people''s Hyundai Motor is the basic requirement of mold. However, the car is a large-scale die molds, which are huge in size and structural complexity, size, accuracy and surface roughness higher, creating considerable difficulties. Moreover, in order to reduce the weight of molds used in the base hollowed out of thin-walled structure and easy maintenance in order to face the middle inlay structure used for the design and manufacture of greater difficulties. Generally speaking, a car parts cover the needs of three or more than 3 to complete the process, that is, the production of an automotive panel parts need at least 3 or more than three mold. If the automotive panel parts in the design, when manufacturers do not take into account the actual situation, then designed the molds in the manufacturing time may simply not be able to carry out processing, or created by the mold can not produce the desired product, resulting in mold scrapped to extend the product development cycle, such an economic loss is unthinkable. However, the mold at the design stage can not be expected to occur in the manufacturing process will be difficult.。Virtual Manufacturing Technology is a software technology, is a CAD / CAE / CAM / CAPP and simulation technology, a higher stage, it can die on your computer to achieve from design to manufacturing to test the entire process, in accordance with the virtual model of the simulation process can be in the computer on the basis of "real" situation of the processing to modify the design of molds to avoid in the mold manufacturing process problems that may arise so as to achieve to reduce mold development cycle, reduce development costs, improve production efficiency, so it is automotive die the most potential to develop the most practical one of the most effective technology.
