Dongguan Precision CastingIt is a casting method compared to the traditional casting process. It can obtain relatively accurate shapes and high casting accuracy. The more common method is: first design and manufacture molds (with very small margin or no margin) according to product requirements, and use casting method to cast wax in Dongguan precision casting to obtain the original wax mold; repeat coating on the wax mold With sanding process, harden the shell and dry; then melt the internal wax mold to dewax and obtain the cavity; roast the shell to obtain sufficient strength; cast the required metal materials; clear the sand after removing the shell , So as to obtain high-precision finished products. Dongguan Precision Casting may conduct heat treatment and cold processing according to product needs.

Investment Casting Process Design

Like general casting process design, the tasks of investment casting process design are:

(1) Dongguan precision casting analyzes the manufacturability of the casting structure;

(2) Choose a reasonable process plan, determine the relevant casting process parameters, and draw the casting drawing on the basis of the above;

(3) Dongguan precision casting designs the pouring system and determines the module structure.

When considering the above three issues, the main basis is still the basic principles of the general casting process, especially when determining the process plan and process parameters (such as casting fillet, draft angle, machining allowance, process ribs, etc.). Except that the specific data is slightly different due to the process characteristics of investment precision casting, the design principles of Dongguan precision casting are exactly the same as those of sand casting.