The aluminum extrusion process requires extreme precision, controlled metal flow, and flawless surface finish to ensure dimensional accuracy, product quality, and long extrusion die life.
In modern aluminum extrusion industry environments — whether producing solid, hollow or semi-hollow profiles, aluminum bar, tube, sheet or complex cross-sectional shapes — the performance of the extrusion die stack is a critical production factor.
Abrasive Flow Machining (AFM) is an advanced finishing manufacturing process for aluminium extrusion dies, designed for:
- complex bearing channel and internal flow geometries
- high-precision profile design tolerances
- optimized surface finish and controlled edge preparation
- stable and balanced material flow
Unlike conventional polishing, AFM is a modular and fully controlled process suitable for high-value tooling, enabling extrusion companies to:
- increase press speed and capacity
- reduce maintenance cost
- ensure consistent production volume
- achieve defined mechanical properties and corrosion resistance
It is therefore not a generic practice, but a high-performance technology for critical extrusion tooling applications in automotive, aerospace and industrial aluminum profiles.
In every extrusion plant, die preparation directly impacts production efficiency, profile quality, extrusion ratio, and overall business profitability. Manual polishing remains an expensive, operator-dependent process that cannot access complex internal flow zones in hollow dies, porthole dies, or multi-void profile designs.
AFM is suitable for the full range of extrusion die materials:
| Materials | Typical components | Process benefits |
Hardened tool steel
High-alloy steel
Carbide | Solid dies
Hollow dies
Porthole dies
Mandrels
Feeder plates
Die caps & backers
Nozzles & orifices | High-quality internal surface finish
Stress-free material removal
Automated polishing of inaccessible flow channels
Extended die life
Improved profile quality |
Choosing Extrude Hone means transforming a finishing step into a lasting competitive advantage.
- Media control: specific calibration of grain size and media type according to your roughness requirements.
- Operational simplicity: machines designed for easy operation, reducing dependence on highly skilled operators.
- Comprehensive support: from feasibility studies to final process validation.
We support extrusion companies from feasibility to serial production:
- Application feasibility study
- Process parameter definition
- Tooling and fixture design
- Buy or subcontracting models
- Production ramp-up support
Our approach turns a finishing operation into a productivity and profitability lever.
