REPAIR WELDING OF INTERMEDIATE CASES OF AIRCRAFT ENGINES FROM HIGH-TEMPERATURE MAGNESIUM ALLOY ML10 WITH APPLICATION OF ELECTRODYNAMIC TREATMENT

摘要

Technology was developed for repair welding of damages in aircraft engine intermediate cases from magnesium alloy ML10, The technology comprises electrodynamic treatment of welds aimed at reducing the level of residual welding stresses,, It was experimentally proved that treatment practically eliminates residual stresses in the weld. At charging voltage of up to 200 V electrodynamic treatment operator can perform maximum 1100 electrodynamic impact operations per shift, and at 500 V voltage - not more than 100 operations, that fully meets the requirements of production cycle of repair welding of aircraft intermediate case.