Step 1:
Design a pattern die, manufactured either from drawings or samples provided by customer.

Step 2:
Once the requirement for the investment casting product has been established the next step is to manufacture precision dies.

Step 3:
Using state-of-the-art wax paste technology, liquid wax is injected into the metal die to produce a high-definition wax pattern of exceptional dimensional accuracy.

Step 4:
Sets of the solidified wax components are removed from the die and assembled in a “tree,” which is coated with a number of ceramic layers.

Step 5:
The completed mould is then placed in a pressure vessel where the wax is steamed out to create a hollow ceramic mould ready for firing. Firing the moulds is instrumental in developing its strength and removing the residual wax.

Step 6:
The selected alloy is melted in electric coreless induction furnaces and gravity poured into the investment mould.

Step 7:
Once the cast tree has solidified, the ceramic mould is removed. This is done by using either hydraulic vibration equipment or removed manually; depending on the tree configuration and alloys used.

Step 8:
After the individual castings have been cut from the tree, witness material is removed from castings using abrasive equipment. The castings are heat-treated to enhance their mechanical properties, or to homogenize the casting. All castings are sand or shot blasted to enhance the surface finish.

Step 9:
All castings move through a 100% visual inspection process, after which the relevant branded packaging is used for storage of the completed castings.