The materials used in this, is the white shaft steel.-Front cut of the material using a mass less than smooth cutting face is over the material weight is greater than the minimum weight in this experiment is 15.036 kg.-Stress Fatigue over the static stress because when supplies get stress repeatedly, as in the period will cause a broken crack and strength of the material, they will have less area to gradually make the page less static fatigue of cutting, it causes the value of fatigue stress is greater than static stress.
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