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New shell moulding castings

07 April 2011

Perucchini’s has developed some new full shell moulding foundry's. The company says that they are comparable, both for quality and tolerances, to the lost wax process castings, but with lower costs, thanks to the know-how and the continuous innovations developed through long lasting supplies of complex parts to most exigent customers.

Perucchini is a known foundry for precision castings, cast iron & steel, in full shell moulding technology. The “full” shell moulding process consists in casting liquid metal inside shells with internal cores, both formed with sands treated and coated with thermosetting resins. Perucchini’s “full” shell moulding achieves tight dimensional tolerances (ISO 8062-CT6), fine controlled thickness and superb rough surface quality (Ra 6,3) thus reducing to minimum the need of machining operations. An advanced pouring software allows: simulation of casting filling and solidification, reduction of industrialisation time, lower costs and higher quality.

The company says that some benefits in particular are:
 Guarantee of casting quality and integrity, tweaked with the newest preventive analysis instruments, casting simulations and sophisticated in line controls 
 time constant supplies, assured by repeatability of the shapes and by highly supervised production processes
 complex shapes and reduced thicknesses, made possible by the use of cores and shells in fine silica sand (2), manufactured internally in more than 10 variants according to the casting features
 wide spread of steels, stainless steels, conventional and special ADI cast irons, for any application requirements
 co-design, that means industrialisation of the casting in collaboration with customers, ideal path to lower the project total costs and the time to market (3)
Thanks to the successful integration between R&D and process technology, Perucchini’s full shell moulding allows to achieve tight dimensional tolerances (UNI ISO 8062 - CT6) and rough surfaces quality (Ra 6,3), thus reducing to the minimum the subsequent finishing machining operations.

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