Surface integrity of rotary ultrasonic machined ZrO2–TiN and Al2O3–TiC–SiC ceramics

Navas, García; Sandá, Alejandro; Sanz, C.; Fernández, Daniel Suárez; Zhang, Fei; Vanmeensel, Kim; Fernández, Adolfo

doi:10.1016/j.jeurceramsoc.2015.06.018

Cited by 15 publications

(5 citation statements)

References 43 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It can be observed from Figure 9 that the surface morphology of the machined pockets changes with varying the percentage of the tool overlapping. The SEM images indicate that, in agreement with observations documented in [1,17] whereas in RUM of ceramics, two material removal modes exist: brittle fracture and ductile fracture. Brittle fracture is observed as tear-outs forming on the pockets surfaces machined at a low percentage of overlapping (0%-10%) as shown in Figure 9a,b.…”

Section: Appl Sci 2020 10 X For Peer Review 10 Of 21supporting

confidence: 85%

“…The applications of advanced ceramics such as alumina and zirconia are increasing gradually in the medical and engineering fields due to the significant advancements in the fabrication techniques [1]. Moreover, advanced ceramics offer excellent properties such as high-temperature resistance, high strength to weight ratio and anti-corrosive properties comparing to their competitor materials such as titanium and Inconel alloys.…”

Section: Introductionmentioning

confidence: 99%

“…Moreover, advanced ceramics offer excellent properties such as high-temperature resistance, high strength to weight ratio and anti-corrosive properties comparing to their competitor materials such as titanium and Inconel alloys. Recently, advanced ceramics were used in the manufacturing of microcomponents such as micro-molds, micro-dies, micro-fluidics and micro-nozzles [1]. Micro-features such as microchannels and micro-pockets with sound surface integrity and high dimensional accuracy are often required in the miniaturized/micro-components for their functioning with ever-increasing stringent specifications [2].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Rotary Ultrasonic Machining of Alumina Ceramic: An Experimental Investigation of Tool Path and Tool Overlapping

2020

View full text Add to dashboard Cite

Pocket milling has been regarded as one of the most widely used operations in machining. The surface quality of the machined pockets is an essential aspect of any engineering and medical applications. In the current study, rotary ultrasonic machining (RUM) was applied for milling micro-pockets on alumina (Al2O3) ceramic. The objective of this research was to analyze the effect of the tool overlapping parameters on the surface roughness, surface morphology and the profiles of the machined pockets. Subsequently, the effect of different tool path strategies was analyzed on the surface quality and the material removal rate (MRR) of the machined pockets. A scanning electron microscope is used for analyzing the tool wear mechanisms. The experimental results provide evidence that the surface roughness, surface morphology and the MRR have been significantly affected by the considered tool overlapping and the tool path strategies. Furthermore, among the selected tool overlapping parameters (5–25%) and the tool path strategies, the best surface roughness (Ra = 0.155 μm and Rt = 1.432 µm) of the machined pockets can be found at 20% of the tool overlapping with a mix of uni-directional and zigzag tool path strategy.

show abstract

Section: Appl Sci 2020 10 X For Peer Review 10 Of 21supporting

confidence: 85%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Rotary Ultrasonic Machining of Alumina Ceramic: An Experimental Investigation of Tool Path and Tool Overlapping

2020

View full text Add to dashboard Cite

show abstract

“…Also, surface alteration such as micro cavities, plastically deformed layers and fragments of ZrO 2 particles spread on the surface were found in Al 2 O 3 -ZrO 2 ceramic composite during the machining in USM process. Navas et al (2015) studied the surface integrity of ZrO 2 -TiN and Al 2 O 3 -TiC-SiC ceramics in rotary ultrasonic machining (RUM). The work suggested that, diamond tool with smaller grain size results in lower surface roughness value and the failure modes of these materials were found to be brittle + ductile facture.…”

Section: Introductionmentioning

confidence: 99%

Experimental investigation and optimisation of ultrasonic machining parameters on zirconia composite

Biswas

Jagadish

Ray³

2019

IJMMM

View full text Add to dashboard Cite

This paper presents an experimental investigation to study the influence of ultrasonic machining (USM) parameters (such as slurry concentration, power and feed rate) on material removal rate, taper angle and over-cut during the machining of zirconia (ZrO 2) composite. The experiments are conducted on the basis of Taguchi (L 9) orthogonal array and multi-objective optimisation on basis of ratio analysis (MOORA) is applied for optimisation of USM process parameters. Parametric analysis is also carried out to study the effect of each process parameters on the responses. Moreover, surface quality of the machined surface is analysed using optimal microscope images. In addition, empirical models are developed for optimum prediction of responses using regression analysis. Finally, confirmatory tests are performed to verify results with experimental results. The result shows that, the material removal rate is influenced by feed rate, and the taper angle and over-cut are influenced by slurry concentration. Also, optimisation method provides optimum parameter setting for USM process that satisfies the real need for machining of ZrO 2 composite in practice.

show abstract

“…[3][4][5][6][7] Currently, ultrasonic vibration-aided grinding is considered a high maturity method among these methods, and the effects of ultrasonic waves on ceramic materials were studied from the micro-or macro-perspectives in the past. 8,9 However, few studies explored the effects of ultrasonic waves on the material's internal characteristics by connecting the macrostructure and the microstructure. 10 This study aims to get a better understanding of the effects of excited ultrasound on the fracture behaviors and reveal the precise and efficient features of ultrasonic vibration-aided grinding of nanocomposite ceramics.…”

Section: Introductionmentioning

confidence: 99%

Study on fracture behaviors of nanocomposite ceramics under a high cycle stress

Chen

Zhao

Jia

et al. 2016

Advances in Mechanical Engineering

View full text Add to dashboard Cite

In order to clarify the fracture behaviors of nanocomposite ceramics under ultrasonic vibration-aided grinding, the stress under ultrasonic was analyzed by non-local elastic theory. A similarity model of bending fracture experiment was built to allow online observation of fracture process, according to the actual conditions of fracture damage under ultrasonic vibration-aided grinding and the similarity law. The experiments validated the theoretical analysis: as the ultrasonic frequency increases, fatigue life is distinctively shorter, and the fatigue crack extends faster and is more stable; the deflection angle decreases as the ultrasonic frequency increases, and it is biggest (47.53°) under 19.9 kHz; the phase transition occurs in the fracture process and the amount of phase transformation increases with the increase in ultrasonic frequency and zirconia content, and it can reach the maximum value when the zirconia content is about 25% and then declines; the greater the ultrasonic frequency, the more obvious the transgranular fracture, the more microcracks on the crystal layers, and the more smooth the fracture surface.

show abstract

Surface integrity of rotary ultrasonic machined ZrO2–TiN and Al2O3–TiC–SiC ceramics

Cited by 15 publications

References 43 publications

Rotary Ultrasonic Machining of Alumina Ceramic: An Experimental Investigation of Tool Path and Tool Overlapping

Rotary Ultrasonic Machining of Alumina Ceramic: An Experimental Investigation of Tool Path and Tool Overlapping

Experimental investigation and optimisation of ultrasonic machining parameters on zirconia composite

Study on fracture behaviors of nanocomposite ceramics under a high cycle stress

Contact Info

Product

Resources

About