Material removal behavior in ultrasonic-assisted scratching of SiC ceramics with a single diamond tool

2014 ◽  
Vol 79 ◽  
pp. 49-61 ◽  
Author(s):  
Jianguo Cao ◽  
Yongbo Wu ◽  
Dong Lu ◽  
Masakazu Fujimoto ◽  
Mitsuyoshi Nomura
Keyword(s):  
Material Removal ◽  
Diamond Tool ◽  
Sic Ceramics ◽  
Ultrasonic Assisted

scholarly journals Experimental investigation on material removal and brittle–ductile transition of SiC ceramics milling regarding milling force characteristic and tool wear

2021 ◽  
Author(s):  
jian qiu ◽  
Renpeng Ge ◽  
tingchao han
Keyword(s):  
Tool Wear ◽  
Material Removal ◽  
Diamond Tool ◽  
Chip Morphology ◽  
Ductile Material ◽  
Force Characteristic ◽  
Milling Parameters ◽  
Brittle Ductile Transition ◽  
Sic Ceramics ◽  
Milling Forces

Abstract This research of SiC ceramics milling with diamond tool is paid attention to the milling mechanism and the cracks formation to found the brittle–ductile transition. The ductile material removal process of ceramics milling was discussed based on milling geometric models. Based on the material characteristics and fracture mechanics theory of SiC ceramics, the chip formation process and the brittle–ductile transition of ceramics milling were analyzed. The milling experiments of SiC ceramics were carried out, and the effect of cutting parameters on material removal mode was investigated. Based on milling forces, surface topography and chip morphology, the removal mechanism of ceramics milling was analyzed. Diamond tool wear on the material removal and milling forces during milling was investigated. Different methods were compared to identify the critical milling parameters of brittle–ductile transition, which can be used to recommend the milling parameters for crack control and high quality cutting.

Material removal behaviour in axial ultrasonic assisted scratching of Zerodur and ULE with a Vickers indenter

2020 ◽  
Vol 46 (10) ◽  
pp. 14613-14624 ◽  
Author(s):  
Guoyan Sun ◽  
Feng Shi ◽  
Qingliang Zhao ◽  
Zhen Ma ◽  
Donglai Yang
Keyword(s):  
Material Removal ◽  
Vickers Indenter ◽  
Ultrasonic Assisted

Ultrasonic Assisted Diamond Turning of Hardened Steel for Mould Manufacturing

2012 ◽  
Vol 516 ◽  
pp. 437-442 ◽  
Author(s):  
Benjamin Bulla ◽  
Fritz Klocke ◽  
Olaf Dambon ◽  
Martin Hünten
Keyword(s):  
Surface Roughness ◽  
Tool Wear ◽  
Diamond Tool ◽  
Spherical Geometry ◽  
Diamond Turning ◽  
Optical Surface ◽  
Turning Process ◽  
Shape Accuracy ◽  
Ultrasonic Assisted ◽  
Innovative Potential

Diamond turning of steel parts is conventionally not possible due to the high tool wear. However this process would enable several different applications with high economical innovative potential. One technology that enables the direct manufacturing of steel components with monocrystalline diamond is the ultrasonic assisted diamond turning process. This technology has been investigated over the years within the Fraunhofer IPT and is now commercialized by its spin-off company son-x. Surface roughness in the range of Ra < 5 nm can be achieved and the diamond tool wear is reduced by a factor of 100 or higher. In order to prove the industrial suitability of the process, two aspherical shapes and one large spherical geometry have been manufactured. The possible form accuracies and surface roughness values will be described in this paper, as well as the tool wear. The goal was to achieve optical surface roughness and a shape accuracy below 300 nm.

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