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1. Improving reliability of drill pipe by strengthening of thread connections of its elements
(Geotechnical and Mining ­Mechanical Engineering, Machine Building)
... steel. The main task of this strengthening operation is redistribution of technological tensile stresses in the material of thread roots, surface strengthening of the metal in the thread roots and formation ...
Created on 19 August 2019

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Registration data

ISSN (print) 2071-2227,
ISSN (online) 2223-2362.
Journal was registered by Ministry of Justice of Ukraine.
Registration number КВ No.17742-6592PR dated April 27, 2011.

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