The development of new methods to improve physical and stressstrain properties of materials is an important contribution to the development of modern technologies and targeted control of their behavior. The optimum combination of stressstrain properties and electrical ones to improve performance attributes of materials is very important. The basic purpose of this work is the study of long-term effects in materials resistivity changes after treatment in a glow discharge. There are presented the results of measurements of a resistivity relative value in copper-graphite insertions after a radiation treatment in a glow discharge. The graphic dependences obtained show that in the course of two years in samples a long-lived state, a structure of irradiated composite material remains. It is a sign of that the improvement of performance attributes of insertions investigated bears longterm character. An anomalous temperature dependence of electric resistance after an irradiation treatment if a glow discharge was detected in technical copper samples. First of all this anomaly manifests itself in copper resis-tivity decrease after an irradiation treatment at different temperatures obtained that is contrary to the fact determined of the simultaneous increase of dislocations density in samples irradiated.
Automation of getting initial data and calculation for manufacturing preparation improves the efficiency and decision quality of design process tasks. An integral part of the manufacturing preparation is definition of time standards and production rates. In the process of manufacturing, operational information is needed to analyze the effectiveness of tasks performed by various categories of performers and structural divisions to make managerial decisions. During operation of equipment with software control, it is possible to implement automated gathering of necessary information and calculation of indicators. In the course of the research, the method was used to obtain information about the operation of the equipment directly from software control devices. Then obtained information was processed by the computing platform. The results were processed using mathematical statistics methods, and production performance was evaluated according to the overall equipment efficiency indicators (OEE). For automation of production, intellectual support of control processes and data processing in process control systems, the method of gathering information and calculating indicators during products manufacturing on CNC machines has been developed. Based on the initial data obtained from the equipment with software control, time standards and production rates when starting manufacturing new products are determined on a computing platform implemented using the algorithms proposed by the authors. Also, the criteria of evaluation of the effectiveness of the established production process are set. For a comparative analysis of the efficiency of the performance of production departments for the period taken into account, the authors specify the special indicator, i.e. the average value of the volume of output per a conditional shift per standard hour in relation to processing on CNC machines. The experience of practical application of the research results has shown that this approach reduces the time of manufacturing preparation, improves the efficiency of operational production management, and also provides operational information for evaluating the process of manufacturing products on CNC machines.
The paper reports the investigation results of changes in a dislocation structure of high-speed steel R18 after processing in a glow discharge. As a result of processing a dislocation structure changes to a depth of 2-3mm from the surface obtained and it is rebuilt under its impact. At that the dislocation substructures are close to the observed ones at different kinds of plastic deformation.
The formation of wear areas on a tool changes power-, temperature and also accuracy quality charac-teristics of a treatment process. The distribution of al-lowance between technological transitions at the use of automated equipment brings the conditions of a cutting process closer to semifinish or finish ones that contributes to control effectively technological heredity. Work surface wear can be estimated through the time τ of a cutting process duration or through the length L of the way in the direction of cutting motion which allows predicting the increase in machining effectiveness based on a rational use of cutters properties. Breakingin and steady wear at rotary cutting increase because of the increase of a cutting edge extension. The application of plasma nano-technologies in material treatment in a glow discharge in controlled gaseous medium allows carrying out changes in the structure on the surface of tools reducing the period of tool breakingin and increasing a steady wear period because of the boundary layer reduction and grinding a source material grain for a specified depth of 0.2…03 mm, that is, commensurable with an optimum bevel edge of tool wear. Tools with continuous single renewal of a cutting edge at optimum wear can realize large ways of cutting L or time τ of a cutting process to carry out a travel of any size.
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