high pressure torsion, hollow billet, plant, monitoring, automated control system
DOI:
https://doi.org/10.37142/2076-2151/2022-1(51)177Keywords:
high pressure torsion, hollow billet, plant, monitoring, automated control systemAbstract
Tarasov O. F., Kasyanyuk O. S., Gribkov E. P., Babash A. V., Kovalenko A. K. Design of the experimental plant control system for the process of torsion under high pressure of hollow blanks
The development of industrial enterprises and the introduction of Internet of Things technology in production require the creation of new mechanisms, the development of which requires the use of modern components followed by precise computer control of the process. In the field of pressure metal processing, high pressure torsion (HPT) machines can be considered such mechanisms, since this process is gaining popularity due to obtaining a submicroscopic structure in the workpiece and extremely high strength of the material as a result of processing. At the same time, the use of HPT installations has significant limitations, which are determined by a significant number of parameters that can change non-linearly during the deformation process. Installation management problems are solved thanks to the use of automated control systems (ACS) for technological process parameters. The article presents the essence of a new process of hollow blanks deformation using torsion under high pressure. A description of the experimental setup and the controls used is given. This technological process is represented by a set of events and activities, the connection between which is displayed in the form of a cyclogram. On the basis of the analysis of the presented technological process, a system of monitoring and ACS of the installation was developed. A logic diagram of the ACS, a diagram of determining the composition of the ACS installation for the implementation of the HPT technology and a components diagram of its software complex have been developed. A schematic solution for using a frequency converter to set the torsion mechanism in motion is presented. An incremental encoder from Siemens and an STM32F4Discovery debugging board were used to accurately count the rotations number of the torsion mechanism. The use of a frequency electric drive made it possible to increase the efficiency of the installation control. The development and use of similar ACS for other pressure metal processing installations will guarantee a stable technological process and the necessary physical properties of the workpieces.
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