TY  JOUR
TI  THREAD RESTORATION TECHNOLOGY OF TOOL-JOINT IN DRILL  PIPES BY METHOD OF ELECTRIC CONTACT WELD DEPOSITION INTO UPSET GROOVE
KW  drill pipe
KW  wear
KW  thread
KW  restoration
KW  electric contact weld deposition.
JO  Bulletin of Bryansk state technical university
AU  Parenko, A.S.
AU  Makarenko, K.V.
PY  2018
IS  2018
PB  Bryansk State Technical University