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 Moreā€¦

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.

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. $$$

Montrose, MN  |  763-675-3169

Established in 1983, Craft Pattern & Mold's foundry uses investment casting, sand casting, rubber plaster casting and spin casting to produce high-quality prototypes or do short-run production. For our customers' castings, we use aluminum, ductile iron, gray iron, zinc or stainless steel.

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Craft Pattern & Mold, Inc. $$$

Honeoye Falls, NY  |  585-624-4894

Here at K&H, we use a fine sand mold process and use fine sand and a urethane binder to produce a broad range of products. We are able to prototype permanent mold applications and produce thicker and irregular wall thicknesses. We offer short lead times for prototypes and low volume production castings as well as other in house value added services. For more information, visit our website or call us today! Our design team looks forward to working with you!

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K&H Precision Products, Inc. $$$

Kenilworth, NJ  |  908-245-2255

Alloy Cast Products, Inc. was incorporated April 3, 1959. Our focus has always been castings and machine finished parts made from exotic cobalt based alloys, primarily our trademark REXALLOY materials. Extending our four decades of COBALT BASED alloy experience to all companies who are seeking solutions to their wear and corrosion problems has made us known throughout the world.

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Alloy Cast Products, Inc. $$$
placeholder image Ferralloy Inc. Rimer Enterprises, Inc. Craft Pattern & Mold, Inc. K&H Precision Products, Inc. Alloy Cast Products, Inc.

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