How does CNC machining improve precision of free-forged components?
Tolerance Control and Dimensional Accuracy
Free-forged components provide strong mechanical foundations but lack the tight dimensional accuracy required for critical assemblies. CNC machining enables precise shaping of sealing surfaces, joint interfaces, and functional geometries to meet strict tolerance standards. By removing excess forging material and correcting geometric deviations, CNC machining transforms rough-forged blanks into high-precision components for aerospace, nuclear, or hydraulic applications, ensuring verified dimensional consistency.
Surface Quality and Functional Integration
Free forging can result in uneven surfaces and flow marks, which can impact fatigue performance and sealing reliability. CNC machining produces smooth, repeatable finishes that enhance functionality and prepare components for post-treatment steps such as coating, welding, or assembly. For cavities, threads, or fluid channels, advanced tool paths allow precise internal shaping that free forging alone cannot achieve.
Compatibility With Advanced Processing
High-quality CNC machining supports downstream strengthening processes such as superalloy heat treatment and post-process finishing. Uniform machining enables controlled stress relief and ensures more effective diffusion during hot isostatic pressing (HIP). These steps improve grain cohesion, fatigue life, and resistance to thermal cycling.
Validation Through Inspection and Analysis
CNC-machined superalloy components undergo dimensional validation and NDT inspection to confirm compliance with engineering drawings. Sealing faces, actuator interfaces, and flow control features are measured using coordinate measuring machines (CMM) and validated through material testing and analysis. With consistent data and traceable production, CNC machining enables free-forged components to meet certification requirements in aerospace, nuclear, and oil and gas applications.
