G & W Foundry, Inc.

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Rehoboth, MA

G & W Foundry, Inc. is a leading manufacturer of investment castings in the United States, with over 70 years of experience in the industry. The company is based in Rehoboth, Massachusetts and has a reputation for delivering high-quality castings to a wide range of industries, including aerospace, defense, medical, industrial, and energy.

Investment casting, also known as lost-wax casting, is a process that involves creating a wax model of the desired part and then encasing it in a ceramic shell. The shell is then heated, causing the wax to melt and leave a cavity in its place. Molten metal is then poured into the cavity, creating the final part. Investment casting is known for its ability to produce complex parts with tight tolerances, excellent surface finishes, and high strength.

G & W Foundry's investment casting capabilities are among the best in the industry. The company has a team of highly skilled engineers and technicians who work closely with customers to understand their needs and provide customized solutions that meet their specific requirements. G & W Foundry can cast parts ranging from a few ounces to over 100 pounds, in a variety of materials, including stainless steel, carbon steel, tool steel, nickel alloys, cobalt alloys, and more.

The company's investment casting services include rapid prototyping, tooling design and fabrication, casting, heat treatment, machining, finishing, and assembly. G & W Foundry uses state-of-the-art equipment and processes to ensure the highest quality and consistency of its castings. The company is ISO 9001:2015 certified and has a rigorous quality assurance program that ensures every part meets or exceeds customer specifications.

G & W Foundry's investment castings are used in a wide range of applications, including aircraft engines, gas turbines, medical implants, pumps and valves, and more. The company has a strong track record of delivering high-quality, reliable parts that meet the demanding requirements of its customers. G & W Foundry's commitment to quality, innovation, and customer satisfaction has earned it a reputation as a trusted partner for investment casting solutions.

Investment Casting Power Pages

Investment Casting

Investment Casting

Investment casting is a metal working process that uses a ceramic shell built over a wax pattern to produce parts with extraordinarily uniform and smooth surfaces. The wax pattern is produced from an aluminum die.The final products of investment casting are without parting lines, mold half marks, or other deformities...

Lost Wax Casting

Lost Wax Casting

Lost wax casting is a casting process that uses a wax pattern to create a ceramic mold for creating a part or product design. It has been known over the years as lost wax or precision casting due to its accuracy in recreating parts with precise tolerances...

Types of Casting Processes

Types of casting processes

The casting process is an ancient art that goes back several thousand years to the beginning of written history. The archeological record has finds that document the use of the casting process over 6000 years ago around 3000 BC or BCE...

Sand Casting

Sand Casting

Sand casting is a manufacturing process in which liquid metal is poured into a sand mold, which contains a hollow cavity of the desired shape and then allowed to solidify. Casting is a manufacturing process in which...


Forged Part

Forging is a metal working process that manipulates, shapes, deforms, and compresses metal to achieve a desired form, configuration, or appearance outlined by a metal processing design or diagram. Depending on the type of metal and the...

Die Casting

Die Casting

Die casting is a high pressure metal casting process that forces molten metal into a mold. It produces dimensionally accurate precision metal parts with a high quality finish. Its ability to produce detailed parts makes it perfect for the mass production of products...

Castings & Forgings

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