M B Luis Sarache2026-03-222026-03-221986https://andeanlibrary.org/handle/123456789/61107This paper presents an optimizing method to set the working conditions of a shaper. Using the Factorial Design Method, it has been posible to determine the influence of the working variables on the surface finish or rugosity of the work piece; these variables can be studied one, two or three at a time. As a result, it has been possible to obtain the ranges where thp tting variables significantly affect surface finish.esRugosityFactorial experimentFactorialFractional factorial designMathematicsStatisticsEngineering drawingarticle