Cost-optimized planning of changes in manufacturing of safety-critical components through systematic manufacturing change management

通过系统化的制造变更管理，对安全关键部件的制造变更进行成本优化规划

• 批准号: 437763513
• 负责人: Professor Dr.-Ing. Thomas Bergs
• 金额: --
• 依托单位: Werkzeugmaschinenlabor - WZL
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2020
• 资助国家: 德国
• 起止时间: 2019-12-31 至 2022-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/437763513?language=en
• 关键词: Cost; optimized; planning; changes; manufacturing

The frequency with which products or components are changed has been increasing considerably in recent years. As reasons for this, changed customer requirements, product optimizations or shortened life cycles are mentioned. However, the increase of product changes does not only take place during the development phase, but also after market entry. If a product is already on the market and then undergoes a change, the existing manufacturing process chain of the product must be adapted in order to implement the required product change.Changes of existing products and manufacturing process sequences pose a particular challenge for the manufacture of safety-critical components from medical technology and aerospace. The reasons for this are legally required, time-consuming and cost-intensive certifications of products and manufacturing, which must be carried out again after changes have been made to products or in manufacturing. These new certifications require a high degree of planning reliability to ensure that the product functionality is guaranteed after changes have been made in manufacturing. In order to increase planning reliability and to reduce certification efforts, a methodical procedure is required by the help of which technology planners can systematically plan changes in manufacturing of safety-critical components. However, a methodology for planning changes in manufacturing of safety-critical components does not currently exist. Thus, cost saving potential remains untapped.The goal of the proposed research project is to develop a methodology for planning changes in the manufacturing of safety-critical components. The goal was divided into four subgoals. First, a methodology will be developed that makes it possible to identify alternative changes in manufacturing that modify the existing manufacturing process chain so that the changed product can continue to be manufactured in line with requirements. The second subgoal is to develop a methodology to analyze the identified changes in manufacturing for unwanted impacts on the considered product. Subgoal three is the development of a methodology for the evaluation of the identified and analyzed changes, in order to generate a decision basis for the selection of an alternative. Finally, the fourth subgoal comprises the synthesis of the three methodologies for the identification, analysis and evaluation of changes in manufacturing into a holistic methodology, by means of which changes in manufacturing of safety-critical components can be planned in a cost-optimized manner.

近年来，产品或部件的更换频率大大增加。其原因包括客户需求的变化、产品优化或生命周期的缩短。然而，产品变化的增加不仅发生在开发阶段，而且在进入市场之后。如果一个产品已经上市，然后进行了更改，则必须调整该产品的现有制造工艺链，以便实施所需的产品更改。现有产品和制造工艺序列的更改对医疗技术和航空航天领域的安全关键部件的制造提出了特别的挑战。其原因是法律要求的、耗时且成本密集的产品和制造认证，在产品或制造发生变化后必须再次进行认证。这些新认证要求高度的规划可靠性，以确保在制造过程中进行更改后，产品功能得到保证。为了提高规划的可靠性并减少认证工作，需要一个系统的程序，技术规划人员可以借助该程序系统地规划安全关键部件制造过程中的变更。然而，目前还没有一种方法来规划安全关键部件制造过程中的变更。因此，节约成本的潜力仍然有待开发。拟议的研究项目的目标是制定一种方法，规划在安全关键部件的制造变化。该目标分为四个次级目标。首先，将开发一种方法，使其能够识别制造中的替代变更，这些变更修改了现有的制造过程链，从而可以继续按照要求制造变更后的产品。第二个子目标是开发一种方法来分析已识别的制造变更对所考虑产品的不良影响。次级目标三是制定一种方法，用于评价已查明和分析的变化，以便为选择替代品提供决策依据。最后，第四个分目标包括将查明、分析和评价制造方面的变化的三种方法综合成一种整体方法，通过这种方法，可以以成本最佳的方式规划安全关键部件的制造方面的变化。