Stainless steel casting hardware tools

The application of investment casting in hardware tools

With the current level of mechanization, hardware tools in life or work into an indispensable part.and the traditional production method has been unable to meet the needs of the present.  

At that time, the development of aviation jet engine required the manufacture of blade, impeller, nozzle and other complex shape, accurate size and surface smooth heat resistant alloy parts.  Due to heat resistant alloy materials difficult to machining, complex shape parts, so that can't or difficult to use other methods, therefore, need to find a new precision forming technology, then draw lessons from the ancient tradition of lost wax casting, after improvement of materials and technology, modern investment casting method on the basis of ancient technology for the development of the important.  Therefore, the development of aviation industry has promoted the application of investment casting, and the continuous improvement and perfection of investment casting has also created favorable conditions for the aviation industry to further improve performance.  Since then, this advanced casting process has been greatly developed, and has been widely used in aviation, automobile, machine tools, ships, internal combustion engines, gas turbines, telecommunications instruments, weapons, medical instruments and hardware tools, and other manufacturing industries, but also for the manufacture of arts and crafts.

The biggest advantage of investment casting is that because investment casting has a very high dimensional accuracy and surface finish, so it can reduce the machining work, just leave a little machining allowance in the parts requiring higher parts, and even some castings only leave grinding and polishing allowance, without mechanical processing can be used.  It can be seen that the investment casting method can greatly save machine tools, processing time and metal raw materials.  

Another advantage of the investment casting method is that it can cast complex castings of various alloys, especially high temperature alloy castings.  For example, the blade of jet engine, its streamlined outer profile and cooling inner cavity, with machining process almost impossible to form.  Investment casting process can not only achieve mass production, ensure the consistency of castings, but also avoid the stress concentration of residual blade lines after machining.