Home > Materials > Machining Inconel 718: Speeds & Feeds, Tooling & Best Practices Machining Inconel 718: Speeds & Feeds, Tooling & Best Practices Technical machining guide for Inconel 718 (Nickel-Chromium Superalloy): optimal cutting speeds (25 - 45 m/min), feeds (0.05 - 0.12 mm/tooth), hardness (36-44 HRC), and precision manufacturing practices.
Engineering Specifications & Parameters Chip Load (fz) 0.05 - 0.12 mm/tooth Material Grade Inconel 718 Material Hardness 36-44 HRC Cutting Speed (Vc) 25 - 45 m/min Alloy Classification Nickel-Chromium Superalloy Primary Applications High-temperature aero-engine turbine blades, rocket exhaust ...
Material Properties & Machinability Profile
Inconel 718 is classified as a Nickel-Chromium Superalloy widely specified for mission-critical components requiring High-temperature aero-engine turbine blades, rocket exhaust nozzles, and oil & gas subsea downhole components..
Engineering Kinematics & Cutting Parameters
Material Hardness : 36-44 HRC.Recommended Cutting Speed ($V_c$) : 25 - 45 m/min with dedicated substrate coatings.Chip Load ($f_z$) : Maintained between 0.05 - 0.12 mm/tooth to prevent tool rubbing or excessive mechanical shock.Machinability Challenge : High mechanical strength at elevated temperatures up to 700°C, extreme work hardening, and high dynamic tool notch wear.Tooling Strategy : Employs high-pressure flood coolant (>= 30 bar) and micro-grain carbide or specialized inserts with positive rake geometries.
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Frequently Asked Questions What cutting speed is recommended for Inconel 718? Optimal cutting speeds range from 25 - 45 m/min depending on roughing vs finishing passes and machine tool rigidity.
How does UCAN ROBOT manage tool wear when cutting Inconel 718? We implement in-process tool monitoring, rigid toolholder systems, and high-pressure through-spindle coolant to dissipate cutting heat immediately.
