Diamond Turn Machining

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Diamond Turn Machining

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Author : R. Balasubramaniam
language : en
Publisher: CRC Press
Release Date : 2017-09-01

Diamond Turn Machining written by R. Balasubramaniam and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-09-01 with Technology & Engineering categories.

The goal of this book is to familiarize professionals, researchers, and students with the basics of the Diamond Turn Machining Technology and the various issues involved. The book provides a comprehensive knowledge about various aspects of the technology including the background, components of the machine, mechanism of material removal, application areas, relevant metrology, and advances taking place in this domain. Solved and unsolved examples are provided in each of the areas which will help the readers to practice and get familiarized with that particular area of the Diamond Turn Machining process.

Surface Generation In Ultra Precision Diamond Turning

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Author : W. B. Lee
language : en
Publisher: John Wiley & Sons
Release Date : 2003-02-07

Surface Generation In Ultra Precision Diamond Turning written by W. B. Lee and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003-02-07 with Technology & Engineering categories.

An Engineering Research Series title. One of the remarkable achievements of modern manufacturing techniques is the ability to achieve nano-metre surface finishes. Ultraprecision machining based on single-point diamond turning (SPDT) is a very important technique in the manufacture of high-precision components where surface finish is critical. Complex optical surfaces, for example, can be produced without the need for post-machining polishing. This book focuses on the aspect of modelling nano-surface generation in ultra precision SPDT. Potential industrial applications in the prediction of surface quality, the process optimization, and precision mould manufacturing are also studies. The essential differences between single-point diamond turning and conventional machining are described. The history and technology of single-point diamond turning are presented and single chapters emphasize the related metrology and cutting mechanics. Important aspects of surface generation are also discussed. Features of the text are the sound approach, systematic mathematical modelling, and computer-aided simulation of surface generation in the development of surfaces exhibiting nano-surface qualities. TOPICS COVERED INCLUDE: Fundamentals of ultra-precision diamond turning technology Cutting mechanics and analysis of microcutting force variation Mechanisms of surface generation Characterization and modelling of nano-surface generation Computer-aided simulation of nano-surface generation Diamond turning of aspheric optics. Based upon the extensive experience of the authors Surface Generation in Ultra-precision Diamond Turning: Modelling and Practices will be of interest to engineers, scientists, and postgraduate students.

Ultraprecision Machining Of Hybrid Freeform Surfaces Using Multiple Axis Diamond Turning

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Author : Dennis Wee Keong Neo
language : en
Publisher: Springer
Release Date : 2017-04-24

Ultraprecision Machining Of Hybrid Freeform Surfaces Using Multiple Axis Diamond Turning written by Dennis Wee Keong Neo and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-04-24 with Technology & Engineering categories.

This 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 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 limitations of conventional diamond turning processes, an analytical model to optimize the generation of ultraprecise freeform surfaces, and an add-on tool path processor for CAD/CAM software solutions. It appeals to researchers and scholars with a strong machining background who are interested in the field of manufacturing ultraprecise freeform surfaces or in the field of optimizing ultraprecision machining processes.

Diamond Turning Machine Design Overview

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Author :
language : en
Publisher:
Release Date : 1978

Diamond Turning Machine Design Overview written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1978 with categories.

Ceramic Optical Diamond Turning Machine

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Author : Johannes Petrus Martinus Bernardus Vermeulen
language : en
Publisher:
Release Date : 1999

Ceramic Optical Diamond Turning Machine written by Johannes Petrus Martinus Bernardus Vermeulen and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1999 with categories.

Physical And Optical Properties Of Surfaces Generated By Diamond Turning On An Advanced Machine

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Author : DJ. Grandjean
language : en
Publisher:
Release Date : 1979

Physical And Optical Properties Of Surfaces Generated By Diamond Turning On An Advanced Machine written by DJ. Grandjean and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1979 with Absorption categories.

A superprecision, two-axis, air-static bearing, diamond-turning machine of advanced design has been previously described at this Conference and is now operational. The microtopography and other physical characteristics of surfaces turned by this machine will be examined in detail. Some effects of machining parameters will be briefly discussed. The ability of this machine to turn surfaces with very small slope errors (

Materials Characterisation And Mechanism Of Micro Cutting In Ultra Precision Diamond Turning

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Author : Sandy Suet To
language : en
Publisher: Springer
Release Date : 2017-05-23

Materials Characterisation And Mechanism Of Micro Cutting In Ultra Precision Diamond Turning written by Sandy Suet To and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-05-23 with Technology & Engineering categories.

This book presents an in-depth study and elucidation on the mechanisms of the micro-cutting process, with particular emphasis and a novel viewpoint on materials characterization and its influences on ultra-precision machining. Ultra-precision single point diamond turning is a key technology in the manufacture of mechanical, optical and opto-electronics components with a surface roughness of a few nanometers and form accuracy in the sub-micrometric range. In the context of subtractive manufacturing, ultra-precision diamond turning is based on the pillars of materials science, machine tools, modeling and simulation technologies, etc., making the study of such machining processes intrinsically interdisciplinary. However, in contrast to the substantial advances that have been achieved in machine design, laser metrology and control systems, relatively little research has been conducted on the material behavior and its effects on surface finish, such as the material anisotropy of crystalline materials. The feature of the significantly reduced depth of cut on the order of a few micrometers or less, which is much smaller than the average grain size of work-piece materials, unavoidably means that conventional metal cutting theories can only be of limited value in the investigation of the mechanisms at work in micro-cutting processes in ultra-precision diamond turning.

Diamond Turning Of Silicon Nitride

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Author : Ronnie Rex Fesperman
language : en
Publisher:
Release Date : 2004

Diamond Turning Of Silicon Nitride written by Ronnie Rex Fesperman and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004 with categories.

This thesis describes experimental work carried out to study the ability to ductile single point diamond turn both Ceradyne's Ceralloy 147-31N and Allied Signal's GS-44 silicon nitride (Si[subscript]3N[subscript]4) and the effect single point diamond turning has on the strength of GS-44 Si[subscript]3N[subscript]4. The Nanocut II nanometric cutting instrument was first employed to determine if the critical depth of cut, corresponding to a ductile to brittle transition, for 147-31N Si[subscript]3N[subscript]4 was within the nanometric regime. A Precitech Nanoform 350 diamond turning machine was then employed to determine the limits of ductile regime machining at larger depths of cut for 147-3 IN and GS-44 Si[subscript]3N[subscript]4 . An investigation into the ability to diamond turn Si[subscript]3N[subscript]4 with both single crystal and polycrystalline diamond tools was performed. 140 GS-44 rectangular flexural bar test specimens in four sample sets of 35 specimens each were prepared by diamond turning with polycrystalline diamond tools at depths of 250 nm, 500 nm, 5 [mu]m, and 10 [mu]m. Four-point flexure testing was performed on the diamond turned flexure bars as well as flexure bars prepared by grinding to assess the effect single point polycrystalline diamond turning has on the strength of GS-44 Si[subscript]3N[subscript]4 in comparison to grinding. Fractography was carried out to identify the origin of failure of each specimen and Weibull statistical analysis was used to characterize the strength distribution for each machining condition. Finally, the effect of negative rake angle and rate of tool wear of single crystal diamond tools was studied by diamond turning thin disks of GS-44 Si[subscript]3N[subscript]4.

Investigation Of The Optical Effects Of Single Point Diamond Machined Surfaces And The Applications Of Micro Machining

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Author : Lei Li
language : en
Publisher:
Release Date : 2009

Investigation Of The Optical Effects Of Single Point Diamond Machined Surfaces And The Applications Of Micro Machining written by Lei Li and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009 with Diamond turning categories.

Abstract: The ultraprecision Single Point Diamond Turning (SPDT) technology has been developed for over 40 years and has been successfully applied to numerous fields. At present, the ultraprecision single point diamond turning technology already expanded to Single Point Diamond Machining (SPDM) technology, which includes several related processes in addition to the more conventional single point diamond turning. The other related processes are Fast Tool Servo (FTS), Slow Tool Servo (STS), broaching, and fly cutting. Though this technology has many notable merits, for example it can achieve micro meter or even sub micron form accuracy and nano meter surface roughness, there still has some drawbacks. One of the objectives of this research is to investigate one of these drawbacks, the diffraction and scattering of the ultraprecision single point diamond machined surfaces. Another objective is to extend the application of the SPDM by developing new design and new machining processes for freeform micro devices used in optical, mechanical, electronic, and biomedical fields. The mechanism and model of the ultraprecision single point diamond turning and micro cutting were first reviewed and discussed. The related subjects to the SPDT and micro cutting were also involved. The optical effects of diamond machined surfaces were studied. The diffraction and scattering generated from the diamond machined surfaces was analytically and experimentally studied. The influences from machining parameters, such as tool mark spacing, feedrate, spindle speed, tool radius, tool condition and different diamond machining process were considered. An empirical relationship between the machining conditions and the first order diffraction from the diamond machined surfaces was setup. This model can be used to select optimal machining conditions for diamond machining process. The design, machining and testing of microlens arrays by using SPDM process were introduced. Two microlens array examples were given. One is a 5 by 5 matrix arranged concave microlens array on flat brass substrate. The other one is a circular arranged 3D microlens array, which has 341 plano-convex micro lenslets, on a thin spherical PMMA substrate. Using the fabricated 3D microlens array, a 3D micro projection system was developed. The formed micro pattern dimension was 340 um by 460 um, giving an overall projection ratio of 34:1. It has been demonstrated that a low cost and simple manufacturing process for true 3D micro scale structures on non-planar substrates based on microlenses can be realized. Last but not least, an affordable polymer SAR micromixer was developed based on a high accuracy, low cost, and flexible micro machining process. Specifically both the mixing performance and the fabrication process were carefully studied. An improved design of the SAR micromixer was also given, the mixing efficiency of the two designs were 0.11 and 0.065 respectively.

Wear Mechanism Of Diamond Tools During Ultra Precision Machining

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Author : Saurav Goel
language : en
Publisher: LAP Lambert Academic Publishing
Release Date : 2011-07-01

Wear Mechanism Of Diamond Tools During Ultra Precision Machining written by Saurav Goel and has been published by LAP Lambert Academic Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011-07-01 with Diamond cutting categories.

Tool wear of a costly material like diamond has always been precursor and thus a matter of concern during ultra precision engineering operations of silicon based semiconductors. Despite being hard, diamond tool wears out unpredictably. Tool wear not only raises the operational cost but also degrades the attainable finish and hence the product quality.In this book, an attempt has been made to arrive at a phenomenological understanding of tool wear mechanism of diamond tools. The technique employed for the purpose is deterministic in nature and is called as molecular dynamics(MD) simulation. This state of art method is capable to simulate atomic level phenomena occurring at picoseconds to femtoseconds time scale.A brief introduction on the current theoretical and research canon related to ultra precision engineering and one of its established branch known as single point diamond turning which has now been extended to single point diamond machining has also been given. I hope that this book will meet the expectations of the reader. I will be gad to receive the genuine feedback of the readers for further improvement of this book.