1. Investment castings have high dimensional accuracy and surface finish, so machining work can be reduced, just leave a little machining allowance on the parts with higher requirements, and even some castings only leave grinding and polishing allowances, Can be used without mechanical processing. The use of the investment casting method can greatly save machine tool equipment and processing man-hours and greatly save metal raw materials.
2. Investment casting It can cast complex castings of various alloys, especially high-temperature alloy castings. For example, the blade of a jet engine, its streamlined profile, and cooling cavity, can hardly be formed by machining technology. Production with an investment casting process can not only achieve mass production, ensure the consistency of castings, but also avoid the stress concentration of residual knife marks after machining.