Absorbed energy in laser truing of a small vitrified CBN grinding wheel

Wang, Xuyue; Wu, Y.; Wang, Justin; Xu, Wen Cai; Kato, M.

doi:10.1016/j.jmatprotec.2005.02.108

Cited by 23 publications

(11 citation statements)

References 7 publications

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“…The thermo-physical parameters of WC, Co and cBN are shown in Table 2 Wang et al, 2005;. The critical evaporation energies were calculated based on Equation (1).…”

Section: Discussionmentioning

confidence: 99%

Characteristics and removal mechanism in laser cutting of cBN–WC–10Co composites

Mao

Sun

Huang

et al. 2016

Journal of Materials Processing Technology

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Laser cutting of a cBN-WC-10Co composite material was carried out using a pulsed Nd: YAG laser. The cutting characteristics, as well as the changes in microstructure and mechanical property, were investigated. It was found that cracks were induced by laser machining on the sub-surface and the evidence of phase transformation from cBN to hBN was observed on the cut surface. Cutting parameters had significant effect on the cut surface. A higher laser power produced a smoother cut surface, but a larger heat-affected zone, in comparison to the lower laser power used. No radical cracks were found on the cross-section at the laser power of 100 W. The surface roughness and the heat-affected zone depth decreased with the increased cutting speed and the gas pressure. The material removal involved in the laser cutting of cBN-WC-Co composite was attributed to the melting or evaporation of cBN and WC-Co. The dropping of cBN particles from the cut surface was also found during the cutting at the laser power of 30 W for the loss of the supporting from the WC-Co matrix.

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“…The thermo-physical parameters of WC, Co and cBN are shown in Table 2 Wang et al, 2005;. The critical evaporation energies were calculated based on Equation (1).…”

Section: Discussionmentioning

confidence: 99%

Characteristics and removal mechanism in laser cutting of cBN–WC–10Co composites

Mao

Sun

Huang

et al. 2016

Journal of Materials Processing Technology

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“…Examples included developing new truing and dressing techniques (also including laser dressing) [107][108][109][110][111], optimizing input parameters through characterization of truing and dressing processes to produce an ideal wheel surface topography [105,112,113], and evaluating dressing quality or wheel sharpness by means of directly measuring wheel topographic parameters such as the number of cutting edges, the height of grain protrusion, and the average roughness of the wheel surface after dressing [114][115][116] or correlating wheel sharpness to grinding power, acoustic emission (AE) signal, residual stresses, or air flow rate along the wheel periphery [117][118][119][120][121]. Based on these reviewed literatures (e.g., [105][106][107][108][109][110][111][112][113][114][115][116][117][118][119][120][121], it is known that the application of SiC abrasive tools, as dressing tools, is much limited due to high wear and is time consuming in dressing CBN wheels. For this reason, besides the laser dressing, the mechanical truing/dressing with diamond abrasive tools, instead of SiC tools, is the most popular method for the recovery of grinding capabilities and wheel geometry of worn grinding wheels in the present days.…”

Section: Dressing Techniquesmentioning

confidence: 99%

Review on grinding-induced residual stresses in metallic materials

Ding

Zhang

et al. 2016

Int J Adv Manuf Technol

104

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This paper provides a state-of-the-art review on the investigations into the residual stresses in metallic structural materials generated by grinding. The materials covered include steels, titanium alloys, and nickel-based superalloys. The formation mechanisms of the residual stresses and their impacts are specifically discussed. Some major influential factors on the residual stresses formation in grinding, such as grinding wheel characteristics, dressing techniques, grinding parameters, cooling conditions, and properties of workpiece materials, are analyzed in detail. These include experimental measurement, modeling, simulation, knowledge-based monitoring, and fuzzy analysis. Finally, the paper highlights some important aspects of grinding-induced residual stresses for further investigation.

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“…Furthermore, Ackerl et al [17,18] developed a multi-axis synchronized motion platform to improve the profile accuracy of shaped wheels. Various cross-sectional shapes of grooves fabricated by laser have been reported in [19,20].…”

Section: Introductionmentioning

confidence: 99%

Micro-grooving of brittle materials using textured diamond grinding wheels shaped by an integrated nanosecond laser system

Geng

Tong

Huang

et al. 2022

Int J Adv Manuf Technol

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Freeform surfaces including both the aspherical and prismatic concave/convex have been widely utilized in optical, electronical, and biomedical areas. Most recently, it is reported that grinding with structured wheels provides new possibility to generate patterns on hard and brittle materials. This paper reports the latest research progress on micro-grooving glass ceramic using laser structured diamond grinding wheels. A nanosecond pulse laser is firstly integrated into an ultra-precision machine tool and used for the in-line conditioning of super abrasive grinding wheels, i.e., truing, dressing, and profiling/texturing. Meanwhile, an offset compensation method, considering the shifting depth of focus (DoF) at different laser irradiation positions, is proposed to accurately generate various profiles on the periphery of the grinding wheels. Three types of patterns (riblets, grooves, and pillars) are successfully fabricated on the ceramic substrate using the laser textured grinding wheels. The results indicate that the integrated laser system offers high flexibility and accuracy in shaping super abrasive grinding wheels, and the grinding using textured grinding wheels provides a promising solution to generate functional microstructures on hard and brittle materials.

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Absorbed energy in laser truing of a small vitrified CBN grinding wheel

Cited by 23 publications

References 7 publications

Characteristics and removal mechanism in laser cutting of cBN–WC–10Co composites

Characteristics and removal mechanism in laser cutting of cBN–WC–10Co composites

Review on grinding-induced residual stresses in metallic materials

Micro-grooving of brittle materials using textured diamond grinding wheels shaped by an integrated nanosecond laser system

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