Engineering, 30.08.2019 20:20 jyah

A10-mm drill rod was heat-treated and ground. the measured hardness he was found to be 300 brinell. estimate the endurance strength s. in mpa if the rod is used in rotating bending

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A10-mm drill rod was heat-treated and ground. the measured hardness he was found to be 300 brinell....

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