CNC machining Inconel

High-strength, heat-resistant, corrosion-resistant, durable.

Inconel Precision Machining

Applications and Features of CNC Machined Inconel Parts


  1. Aerospace: Turbine blades, exhaust systems, and engine components.
  2. Energy: Nuclear reactors, power plants, and oil & gas exploration.
  3. Automotive: High-performance exhaust systems and turbochargers.
  4. Chemical Processing: Heat exchangers and reactors.
  5. Marine: Propulsion systems and underwater components.

Key Properties and Strengthening Mechanisms of Inconel

Feature Description
Oxidation Resistance Forms a thick, stable passivating oxide layer that protects the surface from further attack when heated.
High-Temperature Strength Retains strength over a wide temperature range, suitable for high-temperature applications.
Strengthening Mechanisms Solid solution strengthening and precipitation strengthening, depending on the alloy.
Gamma Double Prime (γ″) Ni3Nb intermetallic compound forms small cubic crystals, inhibiting slip and creep at elevated temperatures.
Gamma Prime (γ’) Ni3(Al, Ti) phase forms coherent precipitates, contributing to strengthening.
Volume Fraction γ″ and γ’ phases are approximately 15% and 4% after precipitation, respectively.
Carbides MX(Nb, Ti)(C, N) compositions help strengthen the material.
Metastable Phase γ″ phase can transform to δ phase (Ni3(Nb, Mo, Ti)) during over-aging, reducing strengthening but aiding in grain boundary pinning.
Laves Phase Brittle intermetallic phase (Ni, Cr, Fe)x(Nb, Mo, Ti)y or NiyNb, can be detrimental by concentrating stress and exhausting strengthening elements.
Solid Solution Strengthening Substitution of larger Mo atoms into the Ni matrix creates strain fields that hinder dislocation motion, strengthening the material.
Temperature Performance Maintains mechanical properties such as high strength and fatigue resistance up to 650°C.
Inconel CNC Processing
Inconel CNC Manufacturing

Why Choose Modo Rapid

We Are Experienced in Machining Inconel Parts

At Modo Rapid, we have extensive experience in machining Inconel, a material known for its exceptional strength and high-temperature resistance but also for its difficulty in shaping and machining due to rapid work hardening. We understand the challenges associated with machining Inconel and have developed specialized techniques to overcome these difficulties.

Inconel tends to harden rapidly during machining, which can deform either the workpiece or the tool if not handled correctly. To address this, we employ aggressive but slow cuts using hard tools, minimizing the number of passes required. For age-hardened Inconels like 718, we often machine the workpiece in a “solutionized” state, performing the final steps after age hardening to ensure precision and quality.

We also utilize advanced methods such as high-speed spindle machining with multifluted ceramic tools, which create localized heating and softening in front of the flute, allowing for faster and more efficient machining.

For threading, we use lathes to single-point external threads or roll threads in the solution-treated condition for hardenable alloys. We can also roll-thread Inconel 718 after full aging using induction heat, ensuring no increase in grain size. Internal threads are meticulously made by threadmilling or using sinker electrical discharge machining (EDM).

Our expertise and knowledge in machining Inconel parts ensure that we can deliver high-quality, precision-engineered components that meet your specific requirements. Trust Modo Rapid to handle your Inconel machining needs with the highest level of professionalism and skill.

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