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2 Prace Naukowe Akademii im. Jana Długosza w Częstochowie. Edukacja Techniczna i Informatyczna
2 Scientific Issues Jan Długosz University in Częstochowa. Technical and IT Education

2 2008

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Wpływ czynników wejściowych procesu technologicznego na optymalizację kosztów produkcji

Dewiatow W., Hałasik P., Lewkowa A. W., Nowacka U.

Prace Naukowe Akademii im. Jana Długosza w Częstochowie. Edukacja Techniczna i Informatyczna

2008

T. 3

111-118

The market development sets a lot of requirements to modern enterprises. The requirements concern a high quality production as well as the effectiveness. In order to achieve the goals, the methods of MES (Manufacturing Execution System) should be used while planning more and more complex production processes. The only way to optimize the price and quality of the products is to take into consideration two aspects: technological and management.

Ekonomiczne technologie wytwarzania cylindrów hydraulicznych

Dewiatow W., Hałasik P., Michalczyk J., Potęga Z.

Prace Naukowe Akademii im. Jana Długosza w Częstochowie. Edukacja Techniczna i Informatyczna

2008

T. 3

97-109

Among all products manufactured in the metallurgical and the machine-building industries, seamless tubes and hollows make up a major part. Hollows can either constitute a semi-finished product intended for further plastic working or machining, or be sold as finished products. There are several methods of manufacturing hollows, and the choice of one of them depends on the purpose of the product and its dimensions. Other methods of manufacturing deep hollows or cylinders for the purposes of the machine-building industry are also used in production practice, which consist in joining the hollow with the bottom by the pressure welding or fusion welding of a semi-finished product produced, e.g., on a press rolling mill. However, the cost of manufacture of 1 running metre of such a semi-finished product is by 30% higher than that of 1 running metre of a corresponding hollow produced by the extrusion method. Bottomed hollows are often used either as finished products or semi-finished products intended for the manufacture of hydraulic cylinders designed for operation under the conditions of extreme temperatures and pressures, and it is therefore required that their construction be uniform.