Columbus's Leading Investment Casting Services
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Why Columbus for Investment Casting?
42,000
Manufacturing Workers
1,900
Manufacturing Facilities
905,748
City Population
Columbus, Ohio is part of the Columbus metro area and is home to major manufacturers including Honda, Worthington Industries, Battelle. The Midwest region offers a strong manufacturing base making it an ideal location for investment casting services.
Investment Casting Capabilities
Investment casting, also known as lost-wax casting, is a precision casting process with origins dating back over 5,000 years. The process begins with creating a wax pattern that is a replica of the desired part. The wax pattern is coated with ceramic slurry that hardens into a shell mold. The wax is then melted out (hence 'lost wax'), and molten metal is poured into the ceramic shell. After cooling, the ceramic is broken away to reveal a near-net-shape casting with excellent surface finish and dimensional accuracy. Investment casting is the process of choice for complex, high-precision parts in aerospace (turbine blades), medical (orthopedic implants), and defense applications.
±0.005" per inch (±0.13mm per 25mm); ±0.003" achievable
4-10 weeks for first articles; 4-8 weeks for production
$1,000-$15,000 for tooling; $10-$200+ per part
Industries Using Investment Casting in Columbus
Major Manufacturers in Columbus
Key employers in the Columbus manufacturing sector include:
- Honda
- Worthington Industries
- Battelle
Investment Casting in Columbus — FAQ
How many Investment Casting providers are in Columbus, OH?
The Columbus metropolitan area has approximately 1,900 manufacturing establishments, many of which offer investment casting services. The area employs about 42,000 manufacturing workers, ensuring a skilled workforce for your project.
What is the maximum size for investment castings?
Investment castings typically range from a fraction of an ounce to about 50 pounds. Some foundries can produce castings up to 150 pounds. For larger parts, sand casting or other processes are more practical.
Why is investment casting used for aerospace?
Aerospace relies on investment casting for turbine blades, structural components, and complex airframe parts because it produces near-net-shape parts in high-performance alloys (Inconel, titanium) with tight tolerances, reducing the need for extensive machining of expensive materials.
How does investment casting surface finish compare?
Investment casting typically achieves surface finishes of 63-125 Ra microinches (1.6-3.2 Ra μm) as-cast, which is significantly smoother than sand casting (250-500 Ra) and comparable to some machined surfaces. Many investment castings require no surface finishing.
What is the typical lead time for investment casting?
First article castings typically take 4-10 weeks including tooling. Production orders take 4-8 weeks. Rapid prototyping with 3D-printed wax patterns can produce first castings in 1-2 weeks without tooling investment.
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