Finally... MRF polishing

for High NA parts!

In the past, many high-NA concave and convex surfaces could not be polished with MRF due to collisions with the nozzle/scraper, head cover, or probing hardware when the part was tilted to large B-axis angles. For some wheels and part geometries, this limit could be as low as 30 degrees! QED has recently added a new rotational polishing mode that significantly extends the current capability of the Q-flex platform, allowing steeper concave and convex surfaces to be polished.

 

hemisphere

 

Just as in raster freeform mode, this new polishing mode utilizes a virtual axis “around-the-wheel” of the MRF polishing head. However, instead of providing “tilt” in a direction orthogonal to the physical axes, this additional virtual axis works in the same direction as the actual B-axis to reduce the physical tilt of the part and therefore limit the chance of a collision between the part and other hardware. This enables Q-flex machines to polish many high-NA concave & convex parts — up to full hemispheres — that were previously not polishable.

 

Download a PDF of the full case study presentation or click "next" below to go to the next page of the case study.

 


 

New rotational polishing mode extends the current capability of Q-flex

  • Utilizes “around-the-wheel” polishing to minimize required B-axis travel
  • Enables many steep concave & convex parts (including full hemispheres) that were previously not polishable!
  • Enables larger diameter concave parts as well

 

Standard Mode: Crash red x mark                 Extended Capability: green check mark

 

 

Download a PDF of the full case study presentation or click "next" below to go to the next page of the case study.

 


 

Small Concave Sphere Example:


Q-flex 100/300

 

small concave drawing

  • Part prescription
    • Radius = ~55 mm
    • Diameter = ~90 mm 

     

 

red x mark Standard Rotational Polishing = Crash!

green check mark  Around-the-Wheel + B-axis = Extended Capability!

 

Download a PDF of the full case study presentation or click "next" below to go to the next page of the case study.

 


 

Deep Concave Asphere Example: Q-flex 300

 deep concave asphere

  • Part prescription
    • Radius = ~60 mm
    • Diameter = ~200 mm
    • k = ~-0.8

 

 

red x mark Standard Rotational Polishing = Crash!

green check mark  Around-the-Wheel + B-axis = Extended Capability!

 

Download a PDF of the full case study presentation or click "next" below to go to the next page of the case study.

 


 

 

Large Concave Asphere Example: Q-flex 300

 large concave asphere

  • Part prescription
    • Radius = ~200 mm
    • Diameter = ~400 mm
    • k = ~0.6

     

 

 

red x mark Standard Rotational Polishing = Exceeds Axis Limits / Crash!

green check mark  Around-the-Wheel + B-axis = Extended Capability!

 

Download a PDF of the full case study presentation or click "next" below to go to the next page of the case study.

 


 

 

Conclusion

Q-flex is a precision finishing solution for almost any problem! Q-flex can help your business improve yield & on-time delivery, reach higher precision, and even offer more complex part shapes. Start with what you need today and upgrade and extend capability as needed. Q-flex will help you be ready for tomorrow's challenges!

Qflex100 300 photo web nobkgd


A PDF of the full case study presentation is available for download. The PDF presentation also include informative capability charts that show the extended capability that "around-the-wheel" polishing offers.

Please contact us to learn about how a Q-flex can be configured to meet your specific capability needs or to discuss the exciting "around-the-wheel" polishing capability.