The Investment Casting Process

the investment casting process

Available types of alloy made by investment casting process are carbon steel, alloy steel, heat-resistant alloy, stainless steel, precision alloy, magnetic alloy, bearing alloy, copper alloy, aluminum alloy, titanium alloy, ductile iron, etc.

Most weight of the investment castings are zero points unit (from a few grams to 10 kilograms, generally not more than 25 kg), too heavy castings in investment casting process making more trouble in processing.

investment casting process is relatively complicated, and not easy to control, use and consumption of material is very expensive, so it is suitable for the production of complex shape, high accuracy, or small parts hard to process, such as turbine engine blades, etc.

The biggest advantage of investment casting process is due to the investment castings with high dimensional accuracy and surface finish, so reducing machining work, only in parts a little higher requirements on the parts machining allowance, and even some castings only grinding, polishing allowance. It can be used without machining. Using investment casting process, therefore, can save a lot of machine tool equipments and processing time, greatly saving metal materials.

Another advantage of investment casting process is that it can cast all kinds of alloy of complicated casting, especially investment casting high temperature alloy castings. .Using investment casting process can not only achieve batch production, ensure the consistency of the castings, investment casting process also avoids the residual knife lines of stress concentration after machining.