13 research outputs found

    Study on Experimental Determination of the Elasticity Modulus of Casted Basalt

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    Basalt is a material available in big quantities in nature. It has a low price and can be used in various domains. It can be relatively easily extracted from natural deposits and processed by means of melting. Melted and recrystallized basalt has demonstrated promising behavior with regards of its use in manufacturing, as reported in the literature. This paper presents the results of an experimental study on the determination of the modulus of elasticity of molten and recrystallized basalt by the method of resistive electrical tensometry and to validate the result and by simulation using finite elements method. Testing methodology, experimental test, data records, data processing and resulting conclusions are presented in the paper

    CONSIDERATION REGARDING THE DIAGNOSIS AND REPAIR OF BEARINGS

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    This paper presents some aspects of diagnosis bearings in preventive maintenance andthe importance of bearing repair as an alternative to replacing them. Bearing repair is not a newconcept, nor has it changed a great deal over the years. Repairing damaged bearings is a precisescience that has been fine-tuned over time through careful and gradual enhancements to providesuperior results. Knowing and understanding the value of bearing repair means knowing whatrepair can do, when to use it, and where to get it don

    Some aspects regarding the thermic behaviour of a basalt parts in machine building industry

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    This work aims to present some aspects regarding the opportunity of using basalt in manufacturing the subassemblies of machine tools. Melted and recrystallized basalt has demonstrated promising behavior with regards of its use in manufacturing, as reported in the literature. The researches presented in this work were focused on analyzing the behavior of basalt parts for machine tools submitted to thermic stress. The tests were made using grey cast iron and steel parts as reference for a comparative study. Testing methodology, specific measuring apparatus used, experimental test data records, data processing and resulting conclusions regarding the possibility of using basalt in machine tools manufacturing are presented in the paper

    SOME CONSIDERATIONS REGARDING THE PARTNERSHIP IN MAINTENANCE

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    CONSIDERATION REGARDING THE MONITORING AND DIAGNOSIS OF MANUFACTURING SYSTEMS

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    Some aspects regarding the static behavior of basalt in the machine building industry

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    Basalt is a material available in big quantities in nature. It has a low price and can be used in various domains. It can be relatively easily extracted from natural deposits and processed by means of melting. Melted and recrystallized basalt has demonstrated promising behavior with regards of its use in manufacturing, as reported in the literature. This work aims to present some aspects regarding the opportunity of using basalt in manufacturing the subassemblies of machine-tools. The research was made using grey cast iron and steel parts as reference for a comparative study. The researches presented in this work were focused on analyzing the behavior of basalt parts submitted to static stress. Testing methodology, specific measuring apparatus used, experimental test data records, data processing and resulting conclusions are presented in the paper

    Analysis of the eigenfrequencies of the basalt machine parts by the FEM

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    The aim of this paper was to carry out a theoretical (numerical) scientific research on the behavior of cast and recrystallized basalt, in order to use it as a material in the manufacture of structural elements of machine tools. A unitary methodology has been established for studying the eigenfrequency of structural elements for machine tools by the finite element method. Two basalt structural elements (beam type and plate type) were modeled, which were also made physically, and with the help of the COSMOS / Mark finite element program, the eigenfrequencies of the models was studied

    SOME ASPECTS OF DEVELOPMENT AND PROGRAMMING A WHEELS MOBILE ROBOT USING THE ARDUINO DEVELOPMENT BOARD

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    The paper presents aspects regarding the development of a mobile robot (on wheels) fitted with ATmega328P-PV microcontroller and infrared and ultrasound sensors for detection. The robot programming elements and the test of its characteristics and performance are also highlighted. The robot is able to pursue an autonomously route determined in advance and avoid any obstacles which might arise in its path, returning then to the default route

    PRESCREENIG AND EVALUATION OF A FLEXIBLE MANUFACTURING SYSTEM

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