Brass Investment Casting

A reliable source for Investment Castings information and leading Investment Castings Companies & Manufacturers.

Investment casting using molten brass results in a final product that is very smooth and detailed without flash or parting lines. This technique creates parts that are precise and lightweight. A variety of metal alloys may be used, including aluminum, steel, and gold. Read Moreā€¦

Brass Investment Casting Brass investment casting is the manufacturing process that creates parts through the metallic replication of wax models.

Leading Manufacturers

Cleveland, OH  |  440-250-1900

For over 30 years, we have provided metal forged products for a wide variety of industries, including the aerospace, military, food service, medical, and automotive industries. Our customers know they can trust our forgings for quality and affordability. We will never try to make you pay more than you should for our products. Contact us by phone or email to find out more!

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Ferralloy Inc. $$$

Waterville, OH  |  419-878-8156

Since 1944 we have been driven to remain a cut above the competition in investment castings and everything we do. We have our own tooling shop filled with state-of-the-art testing machines. We ensure perfect results every time. It is our goal to establish lifelong relationships with our customers that benefit us both. Contact us for more info today!

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Rimer Enterprises, Inc. $$$

Diamond Bar, CA  |  877-484-6776

We provide investment castings, plus sand, permanent mold, and low-pressure castings. We have manufactured castings as large as 200 pounds, 24" diameter or length. Alloys used: alloy steel, aluminum, brass, bronze, carbon steel, copper, ductile iron, gray iron, high-temperature alloys and stainless steel.

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Impro Industries USA, Inc. $$$

Lebanon, PA  |  717-273-3338

People seek us when they want steel investment castings. We produce parts weighing mere ounces up to 200 pounds. Customers' investment castings are done in exotic alloys, carbon steels and stainless steels. We've produced for the food processing, military and power generation industries.

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Pennsylvania Precision Cast Parts, Inc. $$$

McAllen, TX  |  956-688-6406

To satisfy your needs in ferrous investment castings, you can rely on our ISO 9001:2008 certified facility. At Intercast, we can cast sizes ranging from ounces to 65 pounds and lead times are weeks, not months. Simple operations such as drilling and tapping can be done in house and machining sources are done in the US and Mexico. Contact us today for world-class investment castings.

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Intercast $$$
placeholder image Ferralloy Inc. Rimer Enterprises, Inc. Impro Industries USA, Inc. Pennsylvania Precision Cast Parts, Inc. Intercast

Almost any castable metal may be investment cast. The investment casting process lends itself well to parts from a few grams to a few hundred pounds; most parts, however, are 15 pounds or less.

The main drawback to investment casting is that it is more expensive than other manufacturing methods. However, the equipment cost is typically lower than other methods and after the parts are produced they require little finishing or machining.

Brass castings are used in many applications; metal parts are used industrially, commercially, and domestically every day. Investment casting has been used for jewelry making for hundreds of years but is finding modern use in a wide variety of applications including dental and medical tools, engines, couplings, fittings, pipes, propellers, and thousands of other examples in the plumbing, aerospace, automotive, dental, medical, chemical, electrical, construction, mining, food processing, telecommunication, military, sports, and other industries.

Brass Investment Casting Brass Investment Casting - Rimer Enterprises, Inc.

The first step in investment casting is creating a master die out of wax. This wax pattern can be carved by hand or machine or may be produced through injection molding. The die is an exact replica of the part that is to be produced. It is attached to a wax rod called a sprue. Several hundred wax patterns may be attached to the same sprue or it may be a single pattern.

When the master dies are firmly attached, the assembly is inverted and dipped into a ceramic slurry called the investment. It may be dipped multiple times to achieve an even coating and the desired thickness. An alternative method is to mount the assembly in a flask and to pour in the investment.

The investment is then left to dry, which requires a number of hours unless the process is aided by a fan or vacuum. After it has dried completely, the assembly is inverted and baked in an oven or furnace in order to melt or vaporize the wax. The mold is heated more than necessary to guarantee that there is no moisture or residual wax inside that would interfere with the liquid brass that is then poured into the space left by the wax. In order to thoroughly fill the mold, the molten metal can be drawn in using a vacuum, positive air pressure, or centrifugal casting methods. Sometimes the force of gravity is enough. The brass cools and once it has hardened into a solid, the investment mold is removed to release the brass casting inside.

Brass Investment Casting Informational Video