IMPROVED METHOD OF RIB LEVELLING IN AP IMPELLER FABRICATION
Keywords:
Rib leveling , impeller, weld rib, surface finish, fixture.Abstract
Manual process of rib leveling is replaced by machining process to reduce the time and effort of the human
work. The machining is done in a vertical boring machine. During machining process the stability of the welded rib
reduces. Hence Ethylene Propylene Rubber is placed in between the ribs to increase the stability of the welded rib. By
using this method, the rib surface was levelled and obtained a good surface finish. The same operation can be done in a
horizontal boring machine with the help of fixture; the fixture helps to hold the job vertically during machining