investment casting
premium grade investment casting by the 'lost wax process'
History
Lost wax casting is an ancient practice by which bronze is cast from a sculture. In industry the modern process is known as investment casting and today the methods to vary from foundry to foundry; but the steps of casting small bronze scultures are generally quite standardised.
Cast material
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Tolerances and sizes
Information contained within this section is subject to our disclaimer. You are invited to discuss your particular requirements with us.
commercial grade investment casting
This is a new process to the UK and offers distinct advantages over premium grade investment castings and sand castings, the advantages are:
Cast material
- Grey iron
- Ductile iron
- SG Iron
- High Chrome Iron
- White irons
- Carbon Alloy Steels
- Process capabilities
- Cast surface roughness for example 0.2% Carbon steel 12.5-25.4RA
- Minimum and maximum weight limitations From 10g to 100kg
- Minimum and maximum size limitations .100mm – 1000mm
- Draft angles required per process +/-1-3 degrees
Tolerances and sizes
Size of casting mm |
+/- Tolerances mm |
- |
10 |
0.52 |
10 |
16 |
0.54 |
16 |
25 |
0.58 |
25 |
40 |
0.64 |
40 |
63 |
0.7 |
63 |
100 |
0.78 |
100 |
150 |
0.88 |
150 |
250 |
1.25 |
250 |
400 |
2.00 |
Please note: The above tolerances can vary dependant on shape and material.
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