Development of a control system for large-sized products to improve product quality in mechanical engineering

Abstract

The paper considers the problems of monitoring the metrological support of overall parts in mechanical engineering. The decision to implement the control of large products such as ship’s shaft. In addition, an algorithm for analyzing control results using the Matlab program to assess the state of the object of study is proposing.

Methodology of ensuring the efficiency of mechanical processing due to the application of vibration monitoring and vibration protection means

“…K d = �δ ir ; δ oup ; δ form ; δ wave ; δ r ; HV det ; ∆ hard ; … � (2) The comprehensive criterion for the quality of machining, including indicators of geometric accuracy: -δ lr -the linear dimensions tolerance; -δ oup -the tolerance to mutual positions (non-perpendicularity, non-parallelism, etc. ); -δ form -the tolerance for shape error (non-flatness, outof-roundness, etc.…”

“…An increased level of vibration not only reduces the service life and the reliability of its elements but also leads to a decrease in the quality of processing and a decrease in productivity, the efficienc of machining decreases, which is especially important in the machining of materials prone to hardening, such as titanium alloys, stainless steels, etc. The known methods of vibration monitoring using neural networks [2,3,4,5,6,7,8,9] have their limitations due to the complexity of physical and mechanical processes in the MDTD (machine-device-tool-detail) system (here it is necessary to decipher) during machining. The considered methods in the sources [10,11,12] to reduce the level of vibrations do not fully cover the arsenal of tools and methods.…”

Measurement Assurance of Additive Manufacturing on the Example of Laser Surface Polishing Products by Remelting

“…The existing limitations in the measurement and control of parts manufactured using additive technologies require a wider introduction of non-contact measuring systems, including video measuring machines, laser micrometers, machine vision systems, 3D scanners, laser rangefinders and trackers, triangulation sensors, etc. [17,18,19].…”