'AN IMPROVED PROCESS FOR INTERNAL SHROUD FILLET MILLING OF BAR TYPE STEAM TURBINE BLADES OF RHOMBOID SHAPE WITH A NEW CLAMPING METHOD'

摘要

an improved process for internal shroud fillet milling of bar type steam turbine blades of rhomboid shape with a new clamping method comprises of removing old hydraulic cylinder (5) of prior art from the root end (9), fixing a new hydraulic cylinder (8) at the shroud end to actuate a clamp (1) to clamp the blade, fixing locating plate (2) at root end (9) to support the blade, fixing a mounting plate (4) with the new cylinder head (8) wherein a clamping system (1) is disposed in the fixture (F) to clamp the rhomboidal shaped bar type steamturbine blades (10) with the aid of said hydraulic cylinder (8) at the shroud end (3) by pressing the clamp on the said bar (10) when root end (9) is made as reference to carryout the internal fillet milling of bar type blades.