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Precision Investment Casting

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

Many manufacturers and industries depend upon the investment casting process to produce accurate dimensional, precision parts. This is more easily accomplished through this form of casting as the initial mold is an exact replica of the desired part or component, leaving little room for inaccuracy. Read More…

Precision Investment Casting Precision investment casting refers to the highly precise and reliable method of metal casting also known as investment casting or wax casting. The process uses a wax pattern or master die to create complex metal parts in an assortment of sizes, shapes, and weights.
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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

At Impro, we have top-of-the-line equipment for the most demanding investment casting requirements. Our equipment and automation process controls allow us to work with different ferrous and non-ferrous alloys, and maintain consistent and repeatable tolerances as close as ± 0.1 mm. Our investment castings are dimensionally and geometrically complex and produced to net shape, minimizing the need for secondary machining. Contact us today to learn more!

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Impro Industries USA, Inc. $$$

Lafayette, IN  |  765-463-7455

Founded in 2011, Lodestar Quality LLC is a knowledge-driven custom manufacturing solutions provider that provides manufacturers of products a full range of services from innovative design and engineering, to sourcing and production using best in class quality control methods in a cost efficient manner. Focus areas include fabrications, castings, machining and forging, plastic products, and mechatronics.

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Lodestar Quality LLC $$$

LaPorte, IN  |  219-326-1976

As one of the leading privately-owned metal investment cast foundries in the US, Aero Metals, Inc. provides complex cast metal parts to the world with precision investment castings. Since 1962, we’ve been helping customers in various industries achieve their goals by providing cast metal pre-production prototypes through fully finished part production and assembly of finished products.

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Aero Metals, Inc. $$$

Lake Geneva, WI  |  866-642-7307

Wisconsin Precision Casting Corporation offers a broad range of advantages from engineering support, to alloy selection and to part size. Starting with your initial design through to your final product, Wisconsin Precision engineers will work with you to consistently exceed your requirements for service, quality, cost, and on-time delivery. Our alloy selection is one of the broadest in the industry that includes most non-ferrous and ferrous alloys. The size range for the components we make, range from of a couple ounces to 20x22x24” to fit most of your product needs.

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Wisconsin Precision Casting Corporation $$$
placeholder image Ferralloy Inc. Rimer Enterprises, Inc. Impro Industries USA, Inc. Lodestar Quality LLC Aero Metals, Inc. Wisconsin Precision Casting Corporation

Precision investment casting is a popular manufacturing technique for all types of industries including aerospace, jewelry, automotive, medical, and dental. Investment casting can produce high-precision mechanical and engineering parts, automotive engine parts, medical equipment, and braces, among other common items. Such applications often require components be manufactured to precise net shapes with specialized alloys that without investment casting would require costly secondary processes to adjoin parts, remove part lines, flashing and the like.

Precision Investment Casting Precision Investment Casting - Ferralloy Inc

Though it is more expensive than other types of casting processes, precision investment, the nature of this particular process offers greater design flexibility, product detail, and metal options. The elimination of the need for welding, assembly or other finishing steps helps to minimize the initial cost of precision investment casting.

The relatively straightforward precision investment casting process involves a number of detailed steps in order to produce the highly accurate parts it is known for.

Manufacturers must first create a master die or wax pattern. This form is an exact replica of the part to be produced, in some cases it is the original prototype which may be either hand carved, machine made, or produced through injection molding. All flaws and imperfections must be removed from this model prior to all other steps, ensuring it is an exact replica of the desired part.

The master die is then mounted on a wax rod known as a sprue using a heated metal tool. In some instances, several such patterns may be attached to one sprue forming a cluster known as a tree.

Once the dies are in place the investment is applied. This ceramic slurry must coat the entirety of the wax mold. This is achieved by dipping the sprue or tree repeatedly into the investments of decreasing fineness until the desired thickness is achieved or alternately affixing the sprue in a flask and pouring the investment in around it.

The investment is then dried and hardened in an oven or furnace, which also causes the initial wax form to melt and run out leaving the desired mold. Additional heating is needed to remove all residue and moisture. This also preheats the mold allowing the incoming molten metal to coat more evenly before cooling in mold. Once the metal is poured into the mold, it is cooled and the hardened investment shell is removed via media blasting vibrations, hammers or a dissolving agent to reveal the seamless final product.

Precision Investment Casting Informational Video