Journal ArticleDOI
Static and dynamic removal rates of a new hydrodynamic polishing tool
Jorge González-García,Alberto Cordero-Dávila,Esteban Luna,Manuel Nuñez,Elfego Ruiz,Luis Salas,Victor Cabrera-Peláez,Irene Cruz-González,Erika Sohn +8 more
TLDR
A new tool for hydrodynamic radial polishing, HyDra, allows for the local polishing of optical surfaces with a controllable wear rate and a numerical analysis of the volumetric removal rate is presented.Abstract:
A new tool for hydrodynamic radial polishing, HyDra, allows for the local polishing of optical surfaces with a controllable wear rate. The results of the removal rate for different polisher types and sizes, applied air pressures for slurry expulsion, and tool height with respect to the working surface, are reported. We present a numerical analysis of the volumetric removal rate for the dynamic experiments as well as a comparison with a similar technique.read more
Citations
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Journal ArticleDOI
High Energy Fluid Jet Machining (HEFJet-Mach): From scientific and technological advances to niche industrial applications
Dragos Axinte,Bernhard Karpuschewski,M.C. Kong,Anthony Beaucamp,Saqib Anwar,D. Miller,M. Petzel +6 more
TL;DR: In this paper, the authors present the recent developments of HEFJet-Mach from various perspectives: machine/system designs; modelling of both jet plumes and their interactions with the target surfaces; part quality including material integrity; supervision and control of the process; key aspects of machine maintenance and health and safety.
Proceedings ArticleDOI
Contact mechanics models and algorithms for dome polishing with UltraForm Finishing (UFF)
TL;DR: In this paper, the authors derived the equations for the depth of removal as the tool traverses an axisymmetric part and solved these equations by adjusting the tool crossfeed velocity to achieve a desired removal profile.
Dissertation
Numerical methods for the manufacture of optics using sub-aperture tools
TL;DR: In this paper, the authors examined the application of numerical methods to aid optical manufacturing for a number of case-studies related to the use of sub-aperture tools.
Investigation of Polishing Algorithms and Removal Processes for a Deterministic Subaperture Polisher
TL;DR: In this article, a new deterministic optical polisher called UltraForm Finishing (UFF) is developed by OptiPro Systems (Ontario, NY) to remove midspatial frequency surface errors generated by grinding tools, preserve or correct the form of parts and polish the concave surface of tangent ogives made of tough optical materials.
Patent
Hydrodynamic radial flux polishing and grinding tool for optical and semiconductor surfaces
Schneider Elfego Guillermo Ruiz,Lopez-Forment Erika Sohn,Casales Luis Salas,Aguilar Esteban Antolin Luna +3 more
TL;DR: In this paper, a high velocity flux "cushion" that expands radially and parallel to the working surface, generating a stable, uniform and repeatable annular abrasion footprint.
References
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Journal ArticleDOI
Fabrication of aspherics using a mathematical model for material removal.
TL;DR: A mathematica model has been developed that predicts the aspheric surface that a typical optical surfacing machine will produce, and has been verified experimentally for the grinding process.
Journal ArticleDOI
Nanometer deep shaping with fluid jet polishing
TL;DR: In this article, the authors describe the theoretical dependence of various important parameters of the fluid jet polishing process on the material removal rate: the processing time, abrasive concentration, abrasives diameter, particle velocity and the effect of scanning.
Proceedings ArticleDOI
Nanometer accurate shaping with fluid jet polishing
TL;DR: The fluid jet polishing (FJP) technique as mentioned in this paper was developed at Delft University of Technology for the removal of tool-marks resulting from the specific aspheric technology.
Proceedings ArticleDOI
A mathematical model for machining spot in fluid jet polishing explained
TL;DR: A possible explanation of the spot shape based on a Gaussian pressure profile, combined with a material removal rate that is related to the derivative of this pressure profile is derived and discussed in this paper.