Computer aided process planning ( capp ) , which helps to organize the preparation work for production , plays an important role in shortening product - manufacturing period , enhancing product quality and reducing product cost 计算机辅助工艺设计( computeraidedprocessplanning , capp )是促进生产准备工作自动化的有效途径，其应用对于缩短产品制造周期、提高产品质量、降低产品成本具有重要意义。
Based on the optimization system and algorithm frame , the co - evolution optimization model of minimization of makespan , minimization of workload variation , leveling of the material flow and u - line is established , and some instances is given also 在多目标协同优化体系和算法框架的基础上，本文分别建立了混合流水生产系统的基于制造周期、负荷、物流和u型布局等多目标协同优化模型，并给出了优化实例。
Under the mode , it is becoming more necessary that how to utilize the limited resources , to decrease the produce cost , to shorten the produce circle , to ensure the delivery before due date , to upgrade the credit standing , to widen the clients and so on 在这种模式下如何运用有限的资源，降低产品的生产成本，缩短产品的制造周期，保证按时交货，提高企业信誉，赢得更多客户，成为制造业在竞争中生存的一个重要的条件。
Technology information system ( tis ) assures the agility of enterprises and plays an important role in integrating and sharing of interior technology information , improving the efficiency in developing new product and shortening producing period and so on 技术信息系统( technologyinformationsystem ，简称tis )对制造企业的信息集成与共享、提高产品的设计效率、保证设计与制造的有效性、缩短制造周期和提高快速响应市场能力等具有重要的作用。
In the process of maintainability virtual analysis , sample based on computer is used instead of full - scale sample , which has the disadvantage of long manufacture cycle , high cost , and difficult correcting . it will expose the design problem of maintainability of civil airplane to the early stage of design 维修性虚拟分析以基于计算机的样机代替实物样机,克服了实物样机制造周期长、成本高、难以修改的缺点,并能将维修性设计问题暴露在设计初期。
Production data management ( pdm ) is the integration platform of enterprise information , is the bridge of information communication among every departments in the enterprise . through managing and controlling data information of production , the cycle of design and manufacture can be shorten , the quality can be improved and the cost of production can be reduced , thus pdm has been widely used in lots of enterprise 产品数据管理( pdm )系统是企业信息的集成平台，是企业各部门信息沟通的桥梁，由于它具有管理和控制企业产品数据信息，缩短产品的设计制造周期，提高产品质量，降低产品成本等功能，受到众多企业的重视。
Based on calculation method on unfold size and piece form , theory analysis and research are given on ellipse , circle tube , box as equal - high , irregular , unequal - high , irregular piece , process and condition on possibility of drawing are introduced , through calculation coefficient , number of drawing , drawing testing dies are made , results are given , it is similar to calculation method , in the same time , complex drawing presswork is planed , to avoid wrinkle , critical in drawing process . in this paper , die designing is introduced based on complex drawing unfold size calculation , press center is automatic calculated , apartments of press tools are calculated too with material mechanic production process and press form are better , period of die designing is to reduced , and cost of product is lower 对基于复杂拉深件展开尺寸计算的模具设计也作了详细的论述，指出了现有复杂拉深件模具设计制造程序的不合理性，本文在复杂拉深件展开尺寸基础上自动生成冲裁中心、冲裁周长，运用材料力学中杆件强度及抗失稳条件，实现对冲压模具参数的自动计算，简化了冲压模具弹性元件、打料装置的设计过程，给出了冲压模具结构设计流程，使得模具材料核算，制造过程，冲压方式更趋合理，缩短了模具设计制造周期，降低了产品生产成本。
In view of the problems in the design of the large andmedium - sized indoor substations built by guangzhou power bureau in recent years , points for attention in the design of indoor substations are expounded in terms of ventilation , cable channel , reservation of hangers and space for transportation and installation , ground wire , lighting for the whole substation , etc 本文介绍了12 . 5万千瓦汽轮发电机定子扇形片双胞胎冲模的工艺设计和制造技术,以及模具在制造过程中常见的质量问题和预防措施.指出采用合理可行的方法对提高模具制造质量和缩短产品制造周期的重要作用
So how to determine the trimming shape and dimension for exact flanging is very important for reducing the period of producing trimming mould and saving the cost . simultaneously it is a difficult problem in whole mould manufacture . several common methods of calculating the cutting contour were discussed in this thesis 拉延后如何确定修边线的尺寸和形状,使翻边后突缘轮廓正好达到零件所需翻边高度,对于缩短模具制造周期,减少生产成本都具有重要意义,同时也是整个模具行业亟待解决的一大难题。
Design for production includes design guidelines , capacity analysis , and estimate manufacturing cycle time . it determines manufacturing a new product design affects the performance of the manufacturing system . in this paper , a general dfp approach which can reduce manufacturing cycle time during product design is presented 该方法通过制造系统生产能力分析和新产品制造周期估算，可以分析反馈影响产品制造周期和制造系统性能的问题信息，通过及时修改设计，从而缩短产品开发周期。
