摘要：
The purpose of this study was to develop mechanical engineering processes for industrial engineering-to-order (ETO) cranes while utilizing the surrounding design systems. Developed processes needed to improve mechanical engineering data flow between offer- and order engineering phases. Secondly, new processes needed to enable 3D design for crane level engineering.
In this study, three product types are studied, product A (highly configurable), product B (semi configurable) and product C (unique product). Developing the process started from mapping the current processes. Engineering process charts were constructed from several interviews in the company. Engineering hours were analysed for finding out the bottlenecks in the drawn processes.
After studying the product types, a literature review was conducted. From the review, modularity, ETO design automation and top-down design theories were applied in forming new processes. A 3D crane template concept was created. The new template links the offer and order phase by combining CTO- and ETO module 3D models and structures in one crane-level assembly.
Five new process variants were proposed as the main outputs of this study. Product A: light ETO process and medium ETO process. Product B: medium ETO -process for budget offers, and medium-heavy ETO -process for detailed offers. Product C: heavy ETO process. New processes were presented and proposed to the relevant offer- / order engineering stakeholders in the company. Benefits of the new processes were estimated briefly.
After the case results, a company context free framework of 3D crane template was made. The new framework was named to 3D product template, it is a way to connect sales, order engineering and production, with synchronized and visualized product structure.
