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Manufacturing of Freeform Surfaces by Diamond Machining

33rd Annual Meeting

 

Sunday – Friday, November 4 – November 9, 2018
Red Rock Casino • Resort • Spa
Las Vegas, Nevada, USA

Conference Chair:
Kate M. Medicus, Ruda Cardinal, Inc.


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Joseph Owen (University of North Carolina – Charlotte)
Date and Time: TBA

Freeform optics are changing the world of diamond turned optics. Many optical designs now use freeform optics to achieve novel functions, reduction of size, and improved optical performance. This tutorial will cover techniques for diamond machining freeform optics.

This tutorial will cover the following topics:

  • Freeform optics background with applications and examples
  • Machining configurations
    • 2-axis turning (basics)
    • slow tool servo
    • fast tool servo
    • flycutting and milling
  • Surface generation considerations
    • Ductility of the material
    • Cutting forces
    • Surface and sub-surface damage (Surface Integrity)
  • Diamond tool geometry
  • Optical prescriptions
  • Tool path planning
  • Error compensation
    • Error sources
    • Measurement
    • Analysis
    • Compensation
  • Examples of freeform surfaces that were manufactured