Diamond Turn Machining

Balasubramaniam, R.; Sarepaka, RamaGopal V.; Subbiah, Sathyan

doi:10.1201/9781315155937

Cited by 22 publications

(11 citation statements)

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“…Various types of errors, including ogive errors on the shape of the surface generated due to tool setting, are well researched and reported. 7…”

Section: Diamond Turn Machiningmentioning

confidence: 99%

“…Balasubramaniam et al 7 reported various sources of surface errors other than the primary sources such as tool–workpiece interaction, tool wear, vibrations related to machine, and material properties. These sources of errors are significant, and have been given little attention as compared to the primary sources of errors (Figure 3).…”

Section: Diamond Turn Machiningmentioning

confidence: 99%

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Micromachining: An overview (Part I)

Jain

Balasubramaniam

Mote

et al. 2020

Journal of Micromanufacturing

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This article gives classification of micromanufacturing in general and micromachining processes in particular. For different micromachining processes, one can have different kinds of operations through which different features, shapes, accuracy, precision, and dimensions can be achieved. This article as Part I reports an overview of only three processes as diamond turn machining (a class of traditional micromachining processes), electrochemical micromachining, and focused-ion-beam micromachining (a class of advanced micromachining processes). About all these three processes, a brief introduction to the mechanisms of material removal is reported followed by the new developments in each process which are discussed independently. In various sections, some areas where research work needs to be done are identified and very briefly discussed.

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“…Various types of errors, including ogive errors on the shape of the surface generated due to tool setting, are well researched and reported. 7…”

Section: Diamond Turn Machiningmentioning

confidence: 99%

Section: Diamond Turn Machiningmentioning

confidence: 99%

Micromachining: An overview (Part I)

Jain

Balasubramaniam

Mote

et al. 2020

Journal of Micromanufacturing

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“…Even though it looks like a normal lathe operation (mostly facing), the machine is equipped with nanometric controller accuracies, fast machining algorithm and sophisticated auxiliary system. 20 SPDT is a precision machining technique and has the ability to produce an aspherical or free-form surface with deterministic form accuracy. It is performed by engaging a single point diamond tool in a high precision lathe under controlled environment.…”

Section: Precision Finishing Techniques Used For Fabrication Of Opticmentioning

confidence: 99%

“…A schematic diagram of a diamond turning machine is shown in Figure 3. 20 To produce high quality optical components, the cutting tool should move precisely, and it should be sharp enough without any defects. 23 Lower cutting force is expected as the feed and depth of cut are much lower as compared to the conventional machining.…”

Section: Precision Finishing Techniques Used For Fabrication Of Opticmentioning

confidence: 99%

“…The interesting surface features like diffraction gratings can be generated using such coordinated motion. 20 Yuan et al 41 developed a technique to monitor the surface roughness during the diamond turning process. It is observed that the surface undulations are highly correlated to the force variations.…”

Section: Precision Finishing Techniques Used For Fabrication Of Opticmentioning

confidence: 99%

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Review of several precision finishing processes for optics manufacturing

Ghosh

Sidpara

Bandyopadhyay

2018

Journal of Micromanufacturing

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The ultrasmooth optical components with atomic-order surface roughness and nanometre-level shape accuracy are in immense demand with the rapid advancement of modern optical technology. In recent years, aspherical and free-form surfaces are gaining more interest for its favorable properties. Moreover, the new optical materials with immensely enhanced mechanical properties are being developed to meet the stringent requirements of modern optics. Fabrication of complex-shaped ultrasmooth optical components becomes a significant challenge as conventional finishing techniques are unable to machine aspherical or free-form surfaces precisely. This situation demands some highly deterministic finishing processes. Mostly, the optical components are fabricated by shaping or pre-finishing methods followed by final finishing processes. In the shaping or pre-finishing methods, the rigid abrasive tools are used to remove the material at an enhanced rate and near net shape of the elements can be attained. Surface finish and shape accuracy can also be improved to some extent. Owing to the presence of residual finishing marks generated by shaping methods, the application of the components is limited to the infrared (IR) optics. Final finishing processes include more deterministic and flexible polishing techniques that can achieve desired surface finish, figure accuracy and surface integrity to make it suitable for shorter wavelength applications. In recent years, single point diamond turning, precision grinding, plasma chemical vaporization machining and magnetorheological fluid-based finishing are widely used for fabricating ultrasmooth optics. In this article, principle, mechanism of material removal and applicability of the aforementioned precision finishing processes to different materials are discussed.

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