Ziemba Jacek, Hawryluk Marek, Rychlik Marcin
Department of Metal Forming, Welding and Metrology, Wroclaw University of Science and Technology, 50-370 Wroclaw, Poland.
Kuźnia Jawor S.A., 59-400 Jawor, Poland.
Materials (Basel). 2020 Dec 30;14(1):137. doi: 10.3390/ma14010137.
This article proposes an indirect measurement method based on a dimensional and shape analysis of forgings for the evaluation of the manufacture and the proper operation of the key elements of the crank press, in which after modernization, a quick tool assembly based on SMED (Single Minute Exchange of Die) was implemented. As a result of the introduced changes aiming at improving the forging aggregate and increasing the production efficiency, errors were observed on the manufactured products-forgings in the form of twists and joggles. In order to solve the problem, a lot of advanced methods was used, including: dynamic system of deformation analysis, numerical modeling and as well as dimensional and shape analysis by 3d scanning. Despite the above, this approach (classic way) did not solve the problem. A proprietary method with the use of 3D reverse scanning was proposed, which allows to solve the problem of forgings errors. Based on the measurement results and analyses for a few variants of production cycles, the necessary changes were obtained, making it possible to minimize the errors and obtain proper products in respect of geometry and quality.
本文提出了一种基于锻件尺寸和形状分析的间接测量方法，用于评估曲柄压力机关键部件的制造和正常运行情况。在现代化改造后，该曲柄压力机采用了基于快速换模法（Single Minute Exchange of Die，简称SMED）的快速模具装配。由于引入了旨在改进锻造设备和提高生产效率的变革措施，在制造的锻件产品上出现了扭曲和凹凸等形式的误差。为了解决这个问题，使用了许多先进方法，包括：动态变形分析系统、数值建模以及三维扫描进行尺寸和形状分析。尽管如此，这种方法（传统方法）并未解决问题。于是提出了一种使用三维逆向扫描的专有方法，该方法能够解决锻件误差问题。基于对几个生产周期变体的测量结果和分析，得出了必要的改进措施，从而能够将误差降至最低，并获得几何形状和质量符合要求的产品。
