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Product Design Advisor by use of Producibility Evaluation based on Product and Manufacturing Resource Models

使用基于产品和制造资源模型的生产率评估进行产品设计顾问

基本信息

批准号：
02452108
负责人：
KIMURA Fumihiko
金额：
$ 4.03万
依托单位：
The University of Tokyo
依托单位国家：
日本
项目类别：
Grant-in-Aid for General Scientific Research (B)
财政年份：
1990
资助国家：
日本
起止时间：
1990 至 1991
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-02452108/
关键词：
Machinability Producibility Cutting Simulation Design Support CAD CAM Cutting Process Model Form Feature プロダクトモデリング工程設計加工形状特徴 CIM 数値制御加工

项目摘要

The aim of this research is to realize an advising system for product design enhancement by use of producibility evaluation based on product and manufacturing resource models. By using this system, product designers are able to predict the possible difficulty of production about his products, and ask for advises how to improve the manufacturability while keeping the functionality of products. It is fairly difficult to achieve the above-stated target, and here we restrict our research on machinability evaluation only, and do not consider the other manufacturing methods or processes. However, the underlying approach and methods would be equally effective for other types of production.We first extend our previous work on product modelling in order to be able to present, in addition to product shape, tolerances, materials, surface roughness and property, machining form features, etc., and utilize those model attributes for dealing with products, their blank materials, and manufacturing res … More ources, such as machine tools. We combine these models with cutting process models to be able to predict cutting forces and torques very precisely. By this cutting process simulation, we can predict the stability boundary of chatter vibration correctly, and set up the appropriate cutting conditions automatically. We apply these results to the generation of numerically controlled cutter paths for complicated pocket mining. By this approach, the efficiency of NC pocket milling could be substantially enhanced.We combine the above-stated results with our own process planning system to automatically generate pertinent process plans for products being designed. The generated process plans are evaluated by various rules extracted from past machining experiences and product property requirements. The result of the evaluation is a very useful advice for product designers to improve their design according to the manufacturability. The result of the research is summarized in a form of software tools which are useful for constructing advising systems for specific machining operations. Less

本研究的目的是在产品与制造资源模型的基础上，利用可生产性评估来实现产品设计改进的建议系统。通过使用该系统，产品设计人员能够预测其产品可能的生产难度，并询问如何在保持产品功能的同时提高可制造性的建议。实现上述目标是相当困难的，在这里我们仅限于对可加工性评价的研究，而不考虑其他制造方法或工艺。然而，基本的方法和途径对于其他类型的生产同样有效。我们首先扩展了我们以前在产品建模方面的工作，以便能够呈现除了产品形状、公差、材料、表面粗糙度和属性、加工形式特征等之外的产品。并利用这些模型属性来处理产品及其毛坯材料和制造资源， ...更多信息机器，如机床。我们联合收割机将这些模型与切削过程模型相结合，能够非常精确地预测切削力和扭矩。通过对切削过程的仿真，可以准确地预测颤振的稳定边界，并自动设置合适的切削条件。我们将这些结果应用于复杂口袋采矿数控刀具路径的生成。将上述结果与我们自己开发的工艺规划系统结合起来，联合收割机可以自动生成所设计产品的相关工艺方案。生成的工艺方案进行评估的各种规则提取从过去的加工经验和产品的性能要求。评价结果为产品设计人员根据工艺性改进设计提供了有益的建议。研究的结果总结在一个软件工具的形式，这是有用的，为特定的加工操作构建建议系统。少