Advances and Trends in Non-Conventional, Abrasive and Precision Machining

Deja, Mariusz; Markopoulos, Angelos P.

doi:10.3390/machines9020037

Cited by 2 publications

(2 citation statements)

References 8 publications

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“…These processes are used to polish the optical materials without surface and sub-surface defects. 34 These processes effectively finish complex freeform components, which have an obituary shape and irregular surface. These freeform optics or micro-structures are utilized for designing precision sensors.…”

Section: Polishing Processes For Optical Componentsmentioning

confidence: 99%

Plasma polishing processes applied on optical materials: A review

Yadav

Kumar

et al. 2021

Journal of Micromanufacturing

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Nowadays, the surface quality of the material is crucial for industry and science. With the development of micro-electronics and optics, the demand for surface quality has become more and more rigorous, making optical surface polishing more and more critical. Plasma polishing technology is conceived as an essential tool for removing surface and subsurface damages from traditional polishing processes. The plasma processing technology is based on plasma chemical reactions and removes atomic-level materials. Plasma polishing can easily nano-finish hard-brittle materials such as ceramics, glass, crystal, fused silica, quartz, Safire, etc. The optical substrate with micro-level and nano-level surface roughness precision is in demand with the advancement in optics fabrication. The mechanical properties of super-finished optics materials are being used to fulfill the requirement of modern optics. This article discusses the processing of different types of freeform, complex and aspheric optical materials by the plasma polishing process used mainly by the optical industry. The plasma polishing devices developed in the last decade are thoroughly reviewed for their working principles, characteristics and applications. This article also examines the impact of various process parameters such as discharge power, rate of gas flow, mixed gas flow ratio and pressure on the plasma polishing process.

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Section: Polishing Processes For Optical Componentsmentioning

confidence: 99%

Plasma polishing processes applied on optical materials: A review

Yadav

Kumar

et al. 2021

Journal of Micromanufacturing

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“…Due to the wide use of gears, research studies must focus on these basic automotive industrial components. The reason for this is not only scientific interest, but also a need by the industry [29]. "The gear industry is a multi-million industry with a constant annual increase in turnover that is projected to be worth over USD 210 billion in 2026.…”

Section: Introductionmentioning

confidence: 99%

Minimization Method for 3D Surface Roughness Evaluation Area

Molnár

2021

Machines

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3D surface roughness measurement is still a less mature procedure than its 2D version. The size of the evaluation area is not as standardized as the measurement length in the 2D version. The purpose of this study is to introduce a method for minimizing the evaluated surface area. This could help industrial applications in minimizing the time and cost of measurements. Machining experiments (hard turning and infeed grinding) and surface roughness measurements were carried out for automotive industrial parts to demonstrate the introduced method. Some frequently used roughness parameters were analyzed. Basic statistical calculations were applied to analyze the relationship between the surface area and the roughness parameter values and regression analyses were applied to validate the results in case of the applied technological data. The main finding of the study is that minimum evaluation areas can be clearly designated and, depending on the different roughness parameter–procedure version, different evaluation sizes (Sa: 1.3 × 1.3 mm; Sq: 1.4 × 1.4 mm; Ssk and Sku: 2 × 2 m; Sp and Sv: 1.7 × 1.7 mm) are recommended.

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Advances and Trends in Non-Conventional, Abrasive and Precision Machining

Abstract: The modern, highly competitive industrial environment demands machining and production processes that result in exceptional quality and precision [...]

Cited by 2 publications

References 8 publications

Plasma polishing processes applied on optical materials: A review

Plasma polishing processes applied on optical materials: A review

Minimization Method for 3D Surface Roughness Evaluation Area

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