DTM has announced a new material for metal casting applications. CastForm PS (polystyrene) allows users of DTM’s Sintersation systems to create complex investment casting patterns directly, eliminating the time and expense associated with tooling.
CastForm PS performs much like foundry wax, is compatible with standard foundry practices, and offers a low ash content (0.02%), making casting with aluminium, magnesium, zinc, titanium and many other metals easier and more successful.
Pattern removal is said to be quick, and autoclaves and standard furnaces can be used in the pattern removal process. Clustering and burnout rates with CastForm PS are said to be faster than those of non-wax patterns from other RP methods.
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