Literature cited
P. P. Yanovskii et al., in: Coal Mining and Ore Mining Machine Construction [in Russian], No. 2-69-18, NIIInformtyazhmash (1969).
V. I. Zaitsev et al., in: Increasing the Reliability of Tools for Drilling Blast Holes [in Russian], Novokuznetsk (1970).
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Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 1, pp. 31–32, January, 1972.
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Ermolaev, V.V., Sankevich, B.K. Increasing the fatigue strength of crown bits. Met Sci Heat Treat 14, 32–33 (1972). https://doi.org/10.1007/BF00658342
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DOI: https://doi.org/10.1007/BF00658342