Vol 7, No 1-2 (2013)
- Year: 2013
- Articles: 27
- URL: https://journals.eco-vector.com/2074-0530/issue/view/3756
Articles
Designing of technological containers for storage and transportation of body parts of passenger cars
Abstract
The article is devoted to the design of technological containers for storage, domestic and regional transportation of body parts of passenger cars on the example of the container for an automobile roof. Development of a method of designing of a technological container is carried out using SolidWorks software.
Izvestiya MGTU MAMI. 2013;7(1-2):5-10
5-10
11-14
Relationship of surface properties and its fractal dimensions
Abstract
The authors analyze the results of studies of the relationship of fractal dimension of the object surface with its properties and its functional parameters. As the result of the analysis the authors propose a table describing the nature of the relationship.
Izvestiya MGTU MAMI. 2013;7(1-2):14-18
14-18
18-20
20-22
Parametric optimization of gear cutting operations
Abstract
Matters of parametric optimization of manufacturing processes of medium pitch gears for transmissions, vehicle engines and drives of machine tools are illustrated in the paper. The mathematical model of gear cutting operation and the algorithm of parametric optimization of the machining process of a ring gear are developed by the authors. There are presented the ways of improving of manufacturing methods for gear cutting process.
Izvestiya MGTU MAMI. 2013;7(1-2):22-30
22-30
Analysis of the influence of speed of cutting land on stability of a spiral drill bit and ways of its increasing
Abstract
This article presents the analysis of the influence of cutting speed and the thickness of a cut layer on stability of a cutting land. Based on the analysis there is considered the design of the cutting part of a spiral drill bit with more uniform distribution of stability of cutting points, compared to a usual drill bit. The authors established the equation describing the projection of a cutting land onto a plane perpendicular to the axis of the drill bit.
Izvestiya MGTU MAMI. 2013;7(1-2):31-35
31-35
35-38
Influence of parameters of the plasma arc and the workpiece material on the structure and properties of Stellite 190 W built-up alloy
Abstract
In the paper the authors present the results of studies on the influence of the plasma arc current, the distance from the nozzle of the plasma torch to workpiece surface, speed of surfacing and the workpiece material (40X, 19ХГНМА, X18H9T steels) on the formation of the geometric dimensions of the deposited metal zone, structures and properties of built-up Stellite 190W.
Izvestiya MGTU MAMI. 2013;7(1-2):38-46
38-46
Technological synthesis of mechatronic machine-tool systems for multi-axis machining
Abstract
There is considered a technique of technological synthesis of mechatronic machine-tool systems for multiaxis machining in the paper. The technique is visual, universal and implemented with the use of CAD/CAM/CAE/PDM system of SolidWorks software.
Izvestiya MGTU MAMI. 2013;7(1-2):46-51
46-51
Features of intermittent profile grinding cylindrical gears
Abstract
The conditions of engagement of grinding wheel with teeth of the cylindrical wheel when intermittent profile grinding are considered in the paper. There are investigated the possibilities of reducing the thermal stress of the grinding process by means of use of highly-porous abrasive wheels, limitation of specific speed of metal removal and sector sequence of teeth grinding.
Izvestiya MGTU MAMI. 2013;7(1-2):51-54
51-54
54-60
Optimization of the quality of production from the positions of economic production efficiency
Abstract
In the article is examined the interrelation of the quality control and economic production efficiency, the problem of economic effectiveness, including the control of the mechanism of the expenditures, when the branch of the industry of steel structurally complex both on the process of control and on the control process.
Izvestiya MGTU MAMI. 2013;7(1-2):60-68
60-68
Improvement of prefabricated cutting tools for heavy lathes
Abstract
This article considers the issues of improvement of prefabricated constructions for the cutters of heavy machine tools with the purpose of increase the durability of the cutting unit and increase the rigidity of the mounting of cutting elements. There are presented the results of analytical studies of the strength and dynamic characteristics of cutting tools for heavy machine tools.
Izvestiya MGTU MAMI. 2013;7(1-2):68-73
68-73
Development and research of multilayer composite coatings with nano-dispersed structure which are deposited on cutting tools using assistance cathode-vacuum-arc processes
Abstract
The authors considered the problem of synthesis of multilayer coatings with nano-dispersed structure using the process of assistance filtered cathode-vacuum-arc deposition. The effect of high-energy assisting ions, generated by a special device (implanter), which the ВИТ-3 vacuum-arc setting was equipped with, is analyzed in the paper. The mechanisms of modifying the properties of the deposited coatings and cutting properties of carbide inserts with coatings obtained in assisting cathode-vacuum-arc deposition with filtration of ion-vapor flow are analyzed as well.
Izvestiya MGTU MAMI. 2013;7(1-2):73-82
73-82
The application of information technologies in science on the example of the developed test bench for measuring the rotational accuracy of machine-tool spindle assembly
Abstract
Modern machinery is impossible without information technology. Machine tools are the outstanding representatives of the symbiosis of mechanics and electronics. Despite the abundance of parameters which are controlled in machine tools, the most important one is the rotational accuracy of machine spindle assembly. The developed test bench is designed on the base of National Instrument, the modern information system, and allows to measure the rotational accuracy of a spindle assembly.
Izvestiya MGTU MAMI. 2013;7(1-2):82-85
82-85
Results of graphic-analytical research of mathematical models of analysis of laser systems of automatic control and control of vibration parameters of technological objects and designs
Abstract
Mathematical simulation presupposes the search for optimal solutions. Control of the parameters of vibration of objects and structures allows to extend their service life. The authors analyzed the influence of parameters such as channel power ratio m, the angle of parallelism β, the angle α of error of optical reversal on the stabilization factor K.
Izvestiya MGTU MAMI. 2013;7(1-2):85-90
85-90
91-97
Stress-strain state of plastically deformable body in relation to the processes of warm direct extrusion and reduction into conical extrusion dies
Abstract
The article considers the need for developing a reliable method for determining of power parameters of warm die forging. The authors formulated the boundary value problem of determination of the stress-strain state of the visco-plastic deformable body in relation to the processes of warm extrusion into conical dies and established hypothesis assumed in its formulation.
Izvestiya MGTU MAMI. 2013;7(1-2):97-103
97-103
Elastic bending of a bimetallic sheet
Abstract
An elastic bending of a sheet with various properties of layers is considered. The relationship for determining the distance from the neutral layer to the interface of the metal layers is derived. Graphically there is presented the change in the relative magnitude of a neutral layer depending on properties of material layers and different thickness of layers of deformable sheet.
Izvestiya MGTU MAMI. 2013;7(1-2):103-106
103-106
106-110
Designing of gear roll forming tools for finishing of gear ring
Abstract
Specific features of cold finishing rolling of teeth of medium pitch gears are considered in the article. It is shown that the modification of addendum and dedendum of a tool’s tooth is needed. The recommendations on the geometric and precision parameters of the designed tool are given.
Izvestiya MGTU MAMI. 2013;7(1-2):110-113
110-113
113-118
119-124
124-128
128-133
134-140