CNC Machining Services for Inconel Parts

Inconel is a nickel-based superalloy that work-hardens rapidly during cutting, meaning each pass generates heat and strain that makes subsequent cuts more difficult. Its low thermal conductivity traps heat at the cutting edge, accelerating tool wear. Successful Inconel machining requires specialized tooling, precisely controlled feed rates and speeds, effective coolant strategies, and operators with direct experience working with the alloy.

MTS Forge has experience machining a range of high-performance nickel superalloys commonly used in aerospace, defense, and power generation applications. Common grades include Inconel 625, Inconel 718, and Inconel 825. Our metallurgically trained team selects tooling and cutting parameters appropriate for each specific grade's mechanical properties and surface finish requirements.

We can work with both, though our core strength is machining from forgings — including forgings we produce in-house. Starting from a near-net-shape forging rather than bar stock significantly reduces machining time and material waste, which lowers your unit cost. For Inconel specifically, reducing the amount of material removed also preserves the alloy's grain structure and mechanical properties.

Our CNC machining operations are capable of holding tight dimensional tolerances consistent with aerospace and defense drawing requirements. Specific tolerances depend on part geometry, feature complexity, and the applicable engineering standard. We review customer drawings and specifications prior to quoting to confirm feasibility and define the appropriate machining sequence to meet tolerance requirements reliably.

MTS Forge's Quality Assurance Program is governed by Mil I 45208 and Mil Q9858, which establish requirements for inspection systems and quality control in defense manufacturing. For nuclear-sector customers, we also operate under NCA 3800. These programs mandate full material traceability, in-process inspection records, and documented conformance to customer specifications for every Inconel component we produce.

Yes. Full traceability is a standard deliverable on every job, not an optional add-on. Material certifications, heat numbers, chemical and mechanical property test reports, in-process inspection data, and final inspection documentation are compiled and provided with each shipment. This level of documentation is required by our aerospace, defense, and commercial nuclear customers and is embedded in our Quality Assurance Program.

Our primary markets for Inconel machining include aerospace, defense, power generation, commercial nuclear, and chemical processing — industries where Inconel's heat resistance, corrosion resistance, and strength-to-weight properties are specified because no alternative material performs adequately. We also serve machine manufacturing and gas and petroleum customers requiring high-performance alloy components in demanding service environments.

To receive a quote, contact our team with your part drawing or model, material specification (grade and any applicable AMS or ASTM standard), required quantity, and any applicable quality or documentation requirements. Our team will review the drawing, confirm material and machining feasibility, and provide a detailed quote. You can reach us by phone at (610) 857-3500 or by email at Fmicale@mtsforgepa.com.