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The main purpose of the article is to increase productivitiy, reduce processing time and the same time increase the cutting speed. The results are also displayed in Excel using a number of cutting parameters. For this purpose, the article shows the results of both high-speed milling and high-speed turning of a machine with different types of tools, as well as processing of one tool on different types of machines. Unlike other machines, in general, the work on the machines of universal processing centers turned out to be more productive. The feed rate of the machine tools is the focus area here. If we increase cutting values, then the tool life is reduced and that leads to higher tool costs. With universal high-performance machines we cannot save costs for tools (we can only save machine tool costs). Compared to universal high-performance machines, we can save tool costs with Universal Machining Center. Therefore, it is suggested to the machining with the universal machining center, although the machining time and cutting time is faster with the universal high-performance machine.
В статье приведены результаты исследования производственных допусков при водоструйной резке методом трехмерных (3D) измерений: отклонения формы были показаны путем трехмерного справнения отсканированных образцов. Размеры были измерены также с использованием двухмерных (2D) срезов отсканированных образцов. Определено, что чистая водоструйная резка имеет тенденцию отделять мягкие материалы, такие как пластмасса, фольга, пена или бумага, а также пища. В отличие от чистой водоструйной резки, абразивная резка используется для твердых материалов, таких как сталь, керамика, стекло. Вычислено оптимальное давление для обработки материалов. Особое значение уделено разделению композитных материалов, которое не может быть удовлетворительно осуществлено с использованием обычных методов.
Belt conveyors are highly efficient systems used in mining and other industries to transport bulk materials, mainly brown coal and overburden, over distances ranging from short distances to several kilometres. For technical reasons, their operation is associated with noise emissions. During inspections and maintenance this can lead to increased noise exposure of employees. In the vicinity of residential buildings or in areas needing protection, exceeding the emission limits can lead to a temporary restriction of the operation of these high performance installations. Measures are required to reduce the noise impact primarily at the source or in the immediate vicinity. The acoustic and mechanical parameters are investigated on a test bench at the Technical University of Brandenburg (BTU) Cottbus-Senftenberg as part of the drive assembly tests in cooperation with LEAG. The stages of these tests are: Run-up test. In this test the supporting roller is accelerated under test load to a circumferential speed of 10 m/s and the sound pressure level is recorded. This makes it possible to calculate the sound emission as a function of the peripheral speed; Recording the geometry of the idler gear. An accurate description of the geometry of the idler housing allows conclusions to be drawn about the possible causes of excitation. The defined characteristics serve to quantify the acoustic effect of the driven rollers and derive specifications for use in belt conveyor systems. Based on the special requirements to the planned belt conveyor system, an adapted selection of low-noise idler rollers can be made at an early stage on the basis of specified parameters and confirmed test results.
Die Unternehmen des Werkzeug- und Formenbaus stehen unter einem hohen Konkurrenzdruck. Die Verknüpfung des Werkzeugverkaufs mit Dienstleistungspaketen ermöglicht eine Differenzierung vom Wettbewerb und wird als sinnvolle Ergänzung des Kerngeschäfts erachtet. Die Entwicklung solcher erweiterter Geschäftsmodelle erfordert eine integrierte Betrachtung unter rechtlichen, wirtschaflichen und technischen Gesichtspunkten.