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The mechanisms of high-efficiency grinding for micro/meso-structural arrays on ceramic moulds through an innovative wheel truing technology
- Source :
- Ceramics International. 47:27624-27638
- Publication Year :
- 2021
- Publisher :
- Elsevier BV, 2021.
-
Abstract
- The precision fabrication of ceramic moulds for the mass-production of micro/meso-structural arrays places a tremendous challenge to the manufacturing industry. This work aims to reveal the physics behind the processes so as to address this technological challenge. A new method for texturing the diamond grinding wheel surface with a micro-abrasive waterjet is proposed for highly efficient form-grinding of ceramic moulds into the required micro/meso-structural surfaces. It shows that this technology provides some unique advantages in improving the sharpness and geometrical accuracy of the grinding wheels. The mechanisms about material removal and texture formation in grinding wheel truing are investigated to enable the precise control of micro/meso-structure generation on the grinding wheel. A theoretical model is established to study the effect of grinding wheel surface micro/meso-textures and grain trajectory on the quality of the ground mould surface and reveal the reflection mechanism of the ground marks on the mould surface. Furthermore, an integrated rough-fine grinding strategy is proposed which is shown to significantly increase the grinding efficiency by 15–24 times. It is found that ductile domain grinding of ceramic moulds to achieve the required contour profile of 6.7 μm PV accuracy and a surface roughness Ra of less than 40 nm can be achieved.
- Subjects :
- 010302 applied physics
Fabrication
Materials science
Process Chemistry and Technology
Diamond grinding
Mechanical engineering
02 engineering and technology
Grinding wheel
021001 nanoscience & nanotechnology
01 natural sciences
Surfaces, Coatings and Films
Electronic, Optical and Magnetic Materials
Grinding
Mechanism (engineering)
Texture formation
visual_art
0103 physical sciences
Materials Chemistry
Ceramics and Composites
Surface roughness
visual_art.visual_art_medium
Ceramic
0210 nano-technology
Subjects
Details
- ISSN :
- 02728842
- Volume :
- 47
- Database :
- OpenAIRE
- Journal :
- Ceramics International
- Accession number :
- edsair.doi...........112cd63e3a2fa448019f604c84e2e452