Shell casting and investment casting are two different casting processes, but they are related:
Core Differences
Shell casting uses a heated metal template to form a thin shell. A molten metal mold is then poured into the mold cavity after melting the fusible mold. The core of this process is hardening the shell by heating the metal template.
Investment casting (lost wax casting) uses a fusible material (such as wax) to create a mold, which is coated with a refractory material to form the shell. A molten wax pattern is then poured into the mold cavity after melting the wax pattern. The core of this process is melting and draining the wax pattern.
Relationships
Both require the formation of a shell and the pouring of molten metal to achieve the desired shape, but the materials used are different: shell casting uses heated and hardened sand in a metal template, while investment casting uses fusible materials such as wax patterns.
Application Differences
Shell casting is suitable for complex-shaped castings (such as turbine blades and gears), while investment casting focuses more on precision parts (such as small, complex structural components).
Of course, this is just a specific process distinction in the industry, in order to meet the use requirements of castings in different scenarios, and professional casting companies will give you appropriate casting process suggestions based on your casting needs. If you need large-scale casting processing, you can choose to cooperate with Mulan Metal. Mulan Metal has 12 years of casting experience and has helped customers in more than 30 countries complete casting business support and received unanimous recognition. We look forward to your cooperation consultation.
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