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Investment casting is an industrial process based on and also called lost-wax casting, one of the oldest known metal-forming techniques. From 5,000 years ago, when beeswax formed the pattern, to today's high-technology waxes, refractory materials and specialist alloys, the castings allow the production of components with accuracy, repeatability, versatility and integrity in a variety of metals and high-performance alloys. Lost foam casting is a modern form of investment casting that eliminates certain steps in the process.
The process is generally used for small castings, but has produced complete aircraft door frames, steel castings of up to 300 kg and aluminium castings of up to 30 kg. It is generally more expensive per unit than die casting or sand casting but with lower equipment cost. It can produce complicated shapes that would be difficult or impossible with die casting, yet like that process, it requires little surface finishing and only minor machining if any.
<a href=http://www.china-investmentcastings.com/>Investment casting</a> is used with almost any castable metal, however aluminium alloys, copper alloys, and steel are the most common. In industrial usage the size limits are 3 g (0.1 oz) to about 15 kg (33 lb). Typical tolerances are 0.1 mm for the first 25 mm and 0.2 mm for 26mm-50mm. A standard, as cast, surface finish has a roughness value of ~6.3um (250 uin). Standard machined surface finishes are 1.3-4 um (50-125 min).
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| Company: |
Investment casting China
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| Contact: |
Ms. Cathy Pan |
| Address: |
Zhongshan East Road,Haishu district,Ningbo |
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| Tel: |
86-574-27682916 |
| Fax: |
86-574-27682916 |
| E-mail: |
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