Titlebook: Ultraprecision Machining of Hybrid Freeform Surfaces Using Multiple-Axis Diamond Turning; Dennis Wee Keong Neo Book 2017 Springer Nature S

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2190-5053 es special new techniques for producing hybrid free-form surThis thesis focuses on producing hybrid freeform surfaces using an advanced diamond-turning process, understanding the generation of surface accuracies (form errors) and how the choice of cutting strategies affects these, as well as simplif

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Novel Surface Generation of Complex Hybrid Freeform Surfaces,ddress the loss of symmetry. Fresnel lens array is one of these complex hybrid freeform surfaces, which consists of several elements of Fresnel lenses arranged in a rectangular or hexagonal layout. In general such array of Fresnel lenses is manufactured individually and assembled, which cannot be achieved in a single process.

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Introduction,such as diamond turning with fast tool/slow slide servo (FTS/SSS) and diamond micromilling techniques are widely employed for machining freeform optical surfaces with ultraprecision accuracy and excellent surface quality.

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Literature Review,and the limitations of FTS/SSS diamond turning and other multiple-axis diamond machining techniques. Section?. covers the existing CAD/CAM/CAE technologies employed for the manufacturing of hybrid freeform surfaces, and discusses the needs for the surface generation methodologies to produce an accur

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Development of Surface Analytical Model for Accurate Hybrid Freeform Surfaces,studies in Chap. ., when one of the cutting strategies, constant-angle, has been employed, the surface quality of machined freeform surfaces is strongly dependent to the number of points per revolution ... This is due the induced cutting linearization errors in the spiral cutting direction, as expla

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Book 2017s (form errors) and how the choice of cutting strategies affects these, as well as simplifying the complications of generating cutting paths for such freeform surfaces. The breakthroughs behind this thesis are the development of novel, multiple-axis, diamond turning techniques to overcome the limita

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