Folding work logistics in serial production
2020
Verdins, G., Latvia Univ. of Life Sciences and Technologies, Jelgava (Latvia) | Rotgalve-Birziete, D., Latvia Univ. of Life Sciences and Technologies, Jelgava (Latvia) | Berzins, M., HansaMatrix Ventspils, SIA (Latvia)
Mechanical engineering companies with serial production, including agricultural, communal and specialized machinery production, handle a relatively large number of parts on bending presses. The large variety of parts in terms of dimensions, weight and shapes require specific equipment of different capacities and sizes. Typically, companies buy presses that currently provide all possible bending work. In the best case, it would be most advantageous to use an appropriate power and gauge press for each bended part, the price of which would also be lower. Companies require the knowledge, where it is more advantageous to make the relevant parts – in their own company with the equipment they contain, or in cooperation with a company with more appropriate equipment and lower costs. In order to make such calculations, a company or any other researcher should have accurate information about the cost of bending work. In the thesis, a detailed methodology for standardization of bending work has been elaborated, folding work for series of small, bulky and complex parts for timing the work. The obtained data on the time capacity of the measures are needed to produce the parts. Based on the results obtained, the cost of bending work for small, medium and large series is calculated. The work cost analysis is performed. The output parameters for organization of the part folding work are determined, depending on the number of parts in the series, the geometrical parameters of the component, the number of folds, the complexity of the component shape, the effort required, the number of punches and matrices to be used, the weight of the parts, the component material and other factors. There is a methodology for organizing part folding works in a mechanical engineering company for small, medium and large series production.
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