This call for tenders comprises 2 lots for the manufacture of two Pelton impellers.
Forging blank according to specification 3A consisting of:
-Production of 2 forged blanks (approx. Ø 3'680mm; Thickness 945mm; Weight approx. 68 t)
-Pre-processing according to drawing
-Create measurement report
-Non-destructive testing
-Destructive tests
Mechanical machining impeller consisting of:
-Machining (milling and turning) of 2 forging blanks (lot 1) according to drawings and CAD model
-Three-dimensional measurement to prove machining accuracy
-Surveying and logging