Why choose investment casting?

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Why choose investment casting?

Benefits and costs

A casting made by investment casting allows the designer three main advantages:

  1. The first is that to realize complex geometries, the possibility to substitute with one casted part, small and large parts consisting of different pieces.
  2. The second is to be able to choose the most appropriate metal alloy for the project, since all the metal alloys can be casted, in fact the higher their melting points are and greater is the convenience to use this technology.
  3. The third major advantage of the process is that the tolerances which are achievable by casting are very precise and repeatable, so you can reduce or even eliminate the following machining, with consequent reduction of production costs.

To identify the type of technique that most suits to the own needs in order to choose the most economically favorable process to realize a certain type of part, you have to base the analysis on the following assessments:

  • Melting temperature and type of alloy
  • Size of the casting
  • Complexity of the casting
  • Number of pieces
  • Tolerances and surface finishing

Comparison among the main manufacturing techniques for the foundry process

COMPARISON OF CASTING TECHNIQUE DIE CASTING SHELL CASTING SAND CASTING INVESTMENT-CASTING INVESTMENT- CASTING FONDERIA BIAGIOTTI
Cost of the mould High Middle Low Low Very low
Possibility of geometrical changing during production Very limited Limited Very good Middle Good
Batch size High Flexible Flexible Flexible Very flexible
Dimensional precision Very good Good Limited Good Good
Casting materials Aluminum and magnesium alloys Aluminum, brass and copper alloys Ferrous and non-ferrous metals Ferrous and non-ferrous metals All the steels, nickel and cobalt based super-alloys, aluminum, bronze and magnesium alloys
Reachable geometrical complexity Middle Middle Good Very good Best
Weight of castings (kg) From 0.05 to 50 From 0.5 to 300 Starting from 0.05 From 0.005 to 15 From 0.005 to 40
Thickness of castings (mm) From 0.5 to 12 From 2 a 50 Starting from 3 From 2,5 to 80 Starting from 1,5
Superficial finishing degree of castings (RMS) 150-350 150-200 63-90 60-125 60-125

VIEW TABLE

Applications

The Fonderia Biagiotti srl operates in the domestic and international market making precision castings for the production of small and large series for the following industrial applications:

Aeronautical

Aerospace

Food and agriculture

Automotive

Medical

Cycle and motorcycle

Chemical

Security

Building

Electrical & Electronic Equipment

Enology and Bottling

Railway

Mechanical engineering of precision

Mechanical engineering in general

Military

Boat

Oil&Gas

Oleodinamico

Packaging

Pumps

Doors and windows

Turbine

Valves

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