Investment Casting
Investment Casting
Superior Surface Quality and Millimeter Accuracy
Investment casting is a metallurgical method that enables the production of even the most complex castings with exceptional surface quality and high dimensional accuracy. The greatest advantage of this method is that it produces parts so close to their final form that it often completely eliminates the need for post-casting machining.
How does the investment casting process work?
The process begins with the preparation of wax models that are exact replicas of the part. These models are mounted on a "runner" to form a cluster structure. The resulting cluster is coated by dipping it in refractory ceramic clay and dried. Then, the wax is melted at high temperature and extruded (lost wax), and the resulting ceramic shell is fired, making it ready for casting. The casting of the metal and the breaking of the ceramic results in a high-precision part.
Advantages of Investment Casting
Reasons for its preference in critical sectors such as aviation, defense industry, and medical:
Superior Dimensional Accuracy and Surface Quality: The cast parts achieve a smoothness and millimeter accuracy unattainable with other casting methods.
Suitability for Thin and Complex Geometries: It has the ability to produce thin-walled, lightweight, and complex designs that cannot be cast using traditional methods.
Wide Material Adaptation (Especially Steel): Offers the most reliable results in stainless steel, superalloys, and carbon steel casting.
Machining Savings: Since parts are cast to finish dimensions, it radically reduces machining costs and raw material waste.
Design Freedom: Multiple components requiring assembly on the part can be cast as a single piece.