Vol 1, No 14 (2013)
- Year: 2013
- Published: 15.07.2013
- Articles: 10
- URL: https://ogarev-online.ru/2311-2468/issue/view/19431
Full Issue
Methods аnd meаns of surfаce roughness аssessment
Abstract
Аbstrаct. Surface roughness is one of the main factors characterizing the quality of the metal surface layer. Its index directly effects the durability of a particular product or part. In this connection, the article considers some methods and means of surface roughness measurement, as they are important for machine-building enterprises.
Simulation and analysis of vertical drilling machine model 2A125 by means of solid works/simulation
Abstract
The article considers one of the critical development directions of modern machine tool industry. The latter has onerous accuracy requirements for machining. In this connection, the author applies a physical modeling module in order to visualize 3D-kinematic scheme of the machine. Particularly, the study includes a simulation model of the machine as well as its static and frequency analysis. Consequently, the author presents a visualized 3D-kinematic scheme of the machine.
The effects of lubricate and cool technological tools on grinding stress
Abstract
High-speed machining mode has a great influence on the residual stress of finished parts, and hence on the quality and durability of the products. In this connection, one of the most effective tools to reduce stress of the finished parts is to supply lubricant to the part working area in the process of machining.
Current state of automation designing of machine building workflow
Abstract
In order to reduce the production costs the modern machine building industry demands the engineer-technologist to accelerate the workflow development process. In this connection, the article considers different ways of automation adopted by machine building enterprises.
Mathematical modeling of non-linear magnetic response of rigid thin disk superconductor with magnetic field dependence on critical current density
Abstract
The study presents a mathematical model of magnetization harmonics for hard II-type thin disk superconductors. According to the critical state model with Jc ~ /H2 in approximation of magnetic field screening in the disk center, the authors have calculated hysteretic magnetization curves and the dependence of real and imaginary components of the first, third and fifth magnetization harmonics on voltage value of variable and static magnetic fields. Variable magnetic field amplitude has a considerable effect on magnetization harmonics amplitudes.
Effectiveness of finite element models for rolling stock engeneering
Abstract
The paper considers the finite element modeling method for engineering solutions. One of the most important stages in the problem solution is how to create a finite element mesh. In this connection, the author focuses on various types of meshes. Using of these methods can reduce the analysis time and computing resources. It can also help to avoid various errors in engineering solutions.
Control improvement at workflow level
Abstract
This article deals with some issues of control improvement at workflow level. Particularly, the author studies the change of workpiece processing modes (feeding and speed of cutting). In this connection, the prospects of ERP- and MES-systems application for workshop control improvement are considered.