This thesis is based on a determination of a controller. Controller's operation is not
completely determined, therefore, the technologist's final decision on parameter settings for
sinking electrical dischare machine comes from technological tables and manufacturers
recommendations. The thesis concentrates on the infulence of parameters settings to it's
basic settings and influence of parameters settings on output magnitude of the machining
process. Methodology enabling the analysis of these influences is called Taguchi. The
method offers a set of parameters, on the basis of which we perform the test processes and
analyze the results of output magnitude. We find out that the set roughness affects erosion
process and all the output magnitudes the most.
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