In mechanical design, there are many casting methods, the most commonly used is dewaxing casting. The method of losing wax is also called&"investment method GG". It used to be used for Buddha statues, Li and Ding, but now it is used to make various products and parts. For example, well-known products such as rings, connecting rods, and cranks are widely used.
Dewaxing casting usually includes the following steps:
First, scraping wax as a prototype.
The second is the hardened prototype of foundry sand.
Third, melt the wax to form a cavity.
Fourth, pour molten metal into the cavity.
Take ring casting as an example for dewaxing casting. The material of the ring prototype is wax, which is easy to cut. Use special tools to manually scrape the wax to make a prototype. prototype. Now it is also possible to design 3DCAD, CG and other prototypes on the PC and make prototypes.
Gypsum is then used to solidify the surrounding area of ​​the prototype, melting the wax to create a cavity. Then, the metal is poured into the cavity to make a ring.