Derke O. Quality improving of sheet panels manufacture in small-lot production.

Dissertation is dedicated to solving current scientific practical task which consists in improving the quality and efficiency of panel manufacture of sheet thermoplastic materials in discrete unstable production programs. The result of the work is scientific and methodical statements on development of CAM-technology in small-lot production, and also efficiency upgrading. The regression model of change forming errors of volumetric sheet products made of thermoplastic from 3-D model to real final product was obtained. The model is designed for small-lot production. The mathematical model type is determined by linear (by parameters) functional dependence between input and output variable values of technological process. The derived values are refined by the results of experimental studies of several single-type technological processes of one class, described by the identical mathematical models. In the work were examined the economical and organizational aspects of quality improvement machine building production. On the basis of experimental studies was obtained functional dependence between input and output values of volumetric sheet products forming process, matrix equation coefficients were determined as well. Experimental research was carried out with the help of magnitude logging of controlled input and output values of the studied object. Under input values is meant matrix real contour deviation from theoretical. Under output values - deviation value of finished product real contour from theoretical represented by 3-D model. There was developed an efficiency multifactor model of production tooling, which allows in explicit form to measure in money terms the influence of controlled and uncontrolled factors on profit and to analyse in what way it is possible to influence profitability with the help of different management strategies. The developed technology was applied in the industry of aircraft parts, details of ship, waggon, cars.