数值模拟技术在金属成形过程中的应用

金属成形过程非常复杂,不能像常规机械设计那样进行比较精确的设计计算.现代制造业对塑性成形工艺分析和模具设计方面的高要求使得数值模拟技术在这一领域得到了广泛的应用.通过在计算机上描述整个挤压成形过程,计算分析成形过程中影响较大的一些因素,通过逐步修改逼近过程,以检查模具设计是否合理,以避免起皱、充填不满、自由边变形不合要求等缺陷.通过图象终端对分析结果及影响因素进行反复修改,以趋近最佳结果.最终达到代替或部分代替试验工作,提高设计效率和产品质量,节约资源以及人力、物力的目的.

Technology of Numerical Simulation in Metal Forming

The course of metal forming is complex.As a result,the design of metal forming can not be accurate as that of normal mechanical. Because of the requirement of more accurate result in modern manufacturing the technology of numerical simulation found an extensive application in metal forming.Based on the simulation by computer,the design could be checked,therefore the defection of the design which will lead to crisp,no adequate filling or no propriety deform could be avoided.The design will be more accurate through modifying the parameter.And part of the test could be substituted.Not only the efficiency of the design,but also the quality of the product,will be improved.