11th International Research/Expert Conference
نویسندگان
چکیده
Many of enterprises are buying modern and expensive machine tools. But it is not necessary, that investment like mentioned bring 100% of success, why more of important element are missing. This paper is presenting some of important segments, which have important influence on the efficiently and good use of the machine. Mechanical engineer must in the first stage of planning buying a new machine provide the type of use, if it is a fine – precise machine with small cutting forces, or it is a big machine designed for a large cut volume of chips per minute taken. With this are also requirement for rigidity and choking characteristic captured. Next step is weight of the machine, which can causes some problems at transporting, that problems will show as extra costs. The machine weight is also important factor, if machines are placed in floors and not on ground where we could set some quality basis for the machine. That is why are present machines built with composite materials and “sandwich” panels, where we have less weight at the same characteristic. After the machine buying is important the correctly delivery of the machine, where the important elements of machine must be protected and blocked up. The machine placing must be performed by an expert. Some tests must be execute, like machine precision and we have to make some test pieces. On which we check tolerances, than roughness on product and also time necessary for making, which is connected with manufacturing costs. Above listed elements, requests and measurements are illustrated in this paper.
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