You are currently viewing 3 Types Of Metal Casts & 7 Techniques Of Metal Casting For Parts Fabrication

3 Types Of Metal Casts & 7 Techniques Of Metal Casting For Parts Fabrication

The success of a metal parts fabrication workshop lies in its ability to cast high tolerance products fit for use in other industries. Fortunately, CAV Tool has all punches, dies, retainers, etc., covered with a promise to precision tooling in parts fabrication.

In the case of high-quality metal parts that can’t be machine-tooled yet, the molds need to be sturdy enough to withstand extreme heat while delivering perfect dimensions on the cast required. Major reasons to mold specific parts might be customer needs for mechanisms or gapping legacies. Either way, where tools fail, the cast prevails. Here are a few types of metal casts.

1. Single-Use Mold Casts

It is also known as expendable mold casting & utilizes materials like sand, polymeric clay, ceramics, & plasters. The mold is single-use because it is usually broken to get the precise cast out. Metal parts with geometric reinforcements are usually cast this way.

2. Permanent Mold Casts

Engine parts fabrication & heavy machine components are usually cast this way for mainstream uses. And because this method reuses the mold multiple times, only basic machine casts can be fabricated.

3. Composite Casting

The method incorporates both single & multi-use casting elements to produce reinforced metal composite casts. Fibers & additives are introduced into the molten metal and then cast.

Casting Techniques

Sand Casts

In this technique, a mix of sand, clay, & ceramic forms the hardened mold used to create cross-sectional metal casts with hollow features. The casts are designed for assembly rather than a single part.


Molten metal is introduced into a high-pressure mold and then left to harden. This method produces tools & dies with high-tolerance ratings.

Low-Pressure Cast

The molten metal is injected into molds from a low-pressure furnace. The difference in pressures causes the molten metal to rise & occupy molds.

Gravity Die

Here, the molten metal is introduced into a mold using mere gravity. It is simply poured in & popular for permanent molds.

Lost foam

First, complex design parts are sculpted in wax or foam and then covered in sand or ceramics. The molten metal is poured/injected/filled into the mold. The wax, resin, or foam structure melts away, leaving an accurate metal cast.

Vacuumed Die

Here, the air is removed from isolates molds, and molten metal is injected inside. This method is much effective in helping gases escape without becoming a hazard.

Squeezed Die

This method combines forging & casting to produce high-strength metal parts with minimal internal defects. Molten metal is injected into a mold and forged via machining to achieve the shape of the intended cast.

CAV Tools is one of the most reliable machinists in all Kansas City, KS, for precision tooling, cutting, & fabricating metal parts for your business or DIY project needs. Our high tolerance metal worked offerings have benefited many automated companies that rely on our dies & casts to deliver quality further.

If you have a metalwork project that involves conceptual designs, you can trust us to create a prototype of your desired metal part. High-tolerance finishes are guaranteed using only the latest in casting techniques & materials on our premises!

Check out products & get in touch with us for free quotes today!