Description of Investment Casting:
Investment casting, also called lost-wax casting, is one of the oldest manufacturing processes. The mold is made by making a pattern using wax or some other material that can be melted away. And the investment casting parts produced by us is well-known for their high quality.

Process of Investment Casting:
The mold is made by making a pattern using wax or some other material that can be melted away. This wax pattern is dipped in refractory slurry, which coats the wax pattern and forms a skin. This is dried and the process of dipping in the slurry and drying is repeated until a robust thickness is achieved. After this, the entire pattern is placed in an oven and the wax is melted away. This leads to a mold that can be filled with the molten metal.

Material of Investment Casting
The types of materials that can be cast are aluminum alloys, bronzes, tool steels, stainless steels, Stellite, Hastelloys, and precious metals. Parts made with investment castings often do not require any further machining, because of the close tolerances that can be achieved.

Advantages of Investment Casting:
(1)Lost Wax Investment Casting Design Advantages
-Lost wax investment casting provides greater design flexibility
-Lost wax investment casting provides greater detail
-Near net shape
-Greater alloy selection to enhance part performance
-Surface finishes 120 to 150 RMS
-Close tolerances ±.005 per inch
-Lost wax investment casting results in weight reduction
(2)Lost Wax Investment Castings Cost Advantages
-Lost wax investment casting provides near net shape and lowers material usage
-Reduce material costs
-Lost wax investment casting reduces expensive machining operations
-Eliminate expensive fabrications and elements
-Low initial tooling costs
-Economic order quantities ranging from Prototype quantities to Long Production Runs

Application of Investment Casting:
Investment casting can be used to make the CNC machining parts that cannot be produced by normal manufacturing techniques, such as turbine blades that have complex shapes, or airplane parts that have to withstand high temperatures.

As a well-known CNC machining parts manufacturer in China, Huachao has maintained a leadership position in technology and service of CNC milling parts, casting parts, sheet metal, fasteners and other CNC machining parts. Please contact us when you need any CNC milling part.