Investment Castings

In this process the parts can be made to suit its function, without the need to compromise to meet manufacturing limitations. Wax patterns are made which are injected into metallic dies by a press. These wax patterns are covered with ceramics which is baked. The cavity thus formed is replaced by molten metal. Draft angles and split lines are not required and problems in producing undercuts, helical forms and blind recesses can be largely ignored.

The investment casting process has following advantages :-

• Ease in manufacturing complex and intricate parts.
• Reduces machining allowance or eliminates.
• Superior surface finish.
• Close dimensional tolerances.
• Reduces processing cost on tools and equipments.
• Can replace multi part assemblies with a lighter stronger components.