Conclusions
In a broad range of values of various factors (pressure during heating and forging, heating and forging time, relative speed of rotation) the torsional strength of welded samples of steels R12+45, R9K5+45, R6M5K5+45, R8M3K6S+45, and R9M4K8F+45 is constant with a confidence coefficient of 0.95 and meets the requirements. Within this region it is necessary to select friction welding conditions in conformity with the optima technicoeconomic parameters.
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S. M. Kirov Tomsk Polytechnic Institute. Tomsk Institute of Automatic Control Systems and Radioelectronics. Tomsk Factory of Cutting Tools. Translated from Metallovedenie i termicheskaya Obrabotka Metallov, No. 11, pp. 22–26, November, 1976.
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Dobrovidov, A.N., Evtyushkin, Y.A., Egorov, V.I. et al. Structure and properties of welded blanks for tools of new high-speed steels. Met Sci Heat Treat 18, 947–951 (1976). https://doi.org/10.1007/BF00706901
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DOI: https://doi.org/10.1007/BF00706901