Community Research and Development Information Service - CORDIS

Production of close to size CP blades by the direct machining of sand compacts

The production of controllable pitch propellers is currently undertaken using a conventional pattern manufacture, mould and casting production. The process is usually limited to a small series production made to order and for a specific vessel. The process of blade manufacture is very often under time and cost constraints. The production of blade series using a machines sand compact has been developed which can provide highly accurate moulds and blade castings without the need for a pattern. The process provides capabilities to produce close to size castings which together with the absence of a pattern can yield cost and time savings in the production cycle.
The benefits obtained form the process depend upon the background and developed manufacturing technology of Oshaug Metall.

Reported by

Oshaug Metall AS
Grandfjaera 20
6400 Molde
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