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Vetrova
Creation of highly specialized tools for processing coarse-pitch tooth gears
Engineering Education # 09, September 2012 DOI: 10.7463/0912.0476159 The authors consider a modular disk instrument which operates by the rolling method and allows to perform the final machining of tooth gears, especially coarse-pitch ones, using manufacturing capabilities of modern numerical program control (NPC) equipment. The authors developed and studied the method of processing side faces of tooth gears coarse-pitch profile on NC machine tool by means of tooth generation with disk carbide tools, in the absence of a rigid kinematic connection between the rotating cutter and workpiece, applying speeds which are rational for carbide cutting. The results of testing the tool in the laboratory are given in the article. The authors carried out complex estimation of accuracy of the obtained wheel which was processed with special built-up tooling.
77-30569/228502 Analysis of the impact of technological errors on output electrical parameters of microwave radio signals mixers based on resonant tunneling diodes.
Engineering Education # 12, December 2011 The authors carried out an analysis of the impact of technological errors on the output electrical parameters of microwave radio signals mixers based on resonant tunneling diodes and stability of this impact in time (in the process of degradation products) . Obtained results are very important for their technological optimization according to the reliability criterion.
77-30569/228008 Processing variables detection for structural and engineering optimization on reliability criterion of microwave radio signals mixers based on resonant tunneling diodes .
Engineering Education # 10, October 2011 To detect the factors defining phasing out of the next-generation microwave radio signals mixers based on resonant tunneling nanodiodes, researches of regularities of their formation are conducted. It was established that the possibility of increasing reliability of these radio signals mixers lies in optimization of characteristics of the resonant tunneling nanodiode structure.
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