Eliminating the Finish Gap with Fagor HSSA Technology

Eliminate manual polishing and improve part accuracy by 30%. Fagor HSSA technology brings aerospace-grade surface quality to your existing CNC.

In the world of high-speed 5-axis routing, the quality of your finished part is often limited by how your controller “reads” the toolpath. Standard linear interpolation (G01) treats a complex curve as a series of tiny straight lines. On a mold or an aerodynamic surface, this results in visible facets and ridges that require hours of expensive manual labor to polish out. Fagor’s High Speed Surface Accuracy (HSSA) was engineered specifically to bridge this gap.

From Point Clouds to Polynomial Splines

Modern CAD/CAM systems generate a “cloud of points” for complex geometries. A legacy controller attempts to hit every single one of those points with a start-and-stop logic that causes mechanical vibration.

HSSA changes the math. It analyzes the tool path in advance and uses polynomial interpolation (Splines) to smooth the transitions between these points. Instead of a jagged path, the spindle moves in a continuous, fluid motion that respects your programmed tolerance while maintaining the highest possible feed rate.

Why HSSA is an ROI Powerhouse

Implementing HSSA via a Fagor 8065 integration provides three immediate business advantages:

  1. 30% Improvement in Accuracy: By resolving CAD/CAM data points more effectively, HSSA offers a significant jump in dimensional precision compared to conventional cutting methods.
  2. Reduced Mechanical Wear: Jerky movements are the enemy of machine longevity. HSSA’s “jerk control” creates gradual acceleration and deceleration, reducing stress on your ball screws and bearings.
  3. Faster Cycle Times: Because the controller doesn’t have to “stutter” at every line of code, you can maintain higher average velocities through tight curves, reducing total machining time.
Fagor 8065elite CNC System Controller

Reaching High-Gloss Precision with HSSA

In demanding aerospace and mold-making environments, surface finishes as fine as Ra 0.4 µm are now achievable directly off the machine. This level of precision is only possible when your controller’s “brain” is powerful enough to handle the n-dimensional study of toolpaths in real-time.

Ready to Elevate Your Finish Quality?

If your shop is still spending more time polishing parts than cutting them, your controller is the bottleneck. Our technical team specializes in retrofitting existing 5-axis “iron” with the Fagor 8065 HSSA machining system. Contact us today to learn how a Fagor controller retrofit can bring “new-machine” surface quality to your current production floor.