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High-temperature thermomechanical treatment of hollow track pins of track-type machines

“…The statistical estimation of the accuracy of the tube wall thickness and diameter is conducted according to the method of the Chelyabinskiy tube-rolling mill [3]. It should be noted that the final difference in the tube wall thickness strongly depends on the initial difference in the wall thickness of the billets after processing on the piercing mill.…”

“…Dement'yev [1,3] and other researchers. However, the influence of the technology of processing and the degree of the deformation at the straining of tubes on the steel mechanical properties is also of a certain interest [3].…”

“…However, steel 38HS is not used for the tube production and the testing results [3] showed poor durability of the track pins from steel 38HS in the condition of constant-sign asymmetric bending loading; therefore, we have chosen steel 30HGSN2A for our studies and conducted the comparative studies of both steels.…”