The new challenges of machining Ceramic Matrix Composites (CMCs): Review of surface integrity

Gavaldà-Diaz, Oriol; Luna, Gonzalo García; Liao, Zhirong; Axinte, Dragoş

doi:10.1016/j.ijmachtools.2019.01.003

Cited by 242 publications

(45 citation statements)

References 70 publications

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“…Carbon fiber-reinforced silicon carbide-based matrix (C/C-SiC) composites have been attracting increasing attention in the development of aerospace technology because of their lightweight, superior high-temperature mechanical properties, good oxidation resistance, and excellent thermal shock resistance [1][2][3][4][5][6]. However, with the persistent pursuit of improving the performance of hot structures, further requirements have been put forward to enhance the comprehensive performance of the carbon fiber-reinforced ceramic matrix composites, which helps to fulfill the engineering application under harsh environments.…”

Section: Introductionmentioning

confidence: 99%

High-temperature Mechanical Properties and Their Influence Mechanisms of ZrC-Modified C-SiC Ceramic Matrix Composites up to 1600 °C

et al. 2020

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In order to understand the influence of the mechanisms of ZrC nanoparticles on the high-temperature mechanical properties of C-SiC ceramic matrix composites, the mechanical properties were measured from room temperature (RT) to 1600 °C under vacuum. The microstructures features were characterized by scanning electron microscopy. In comparison with the composites without ZrC nanoparticles, the ZrC-modified composite presented better mechanical properties at all temperatures, indicating that the mechanical properties could be improved by the ZrC nanoparticles. The ZrC nanoparticles could reduce the residual silicon and improve the microstructure integrity of composite. Furthermore, the variation of flexural strength and the flexural modulus showed an asynchronous trend with the increase of temperature. The flexural strength reached the maximum value at 1200 °C, but the highest elastic modulus was obtained at 800 °C. The strength increase was ascribed to the decrease of the thermally-induced residual stresses. The degradation of mechanical properties was observed at 1600 °C because of the microstructure deterioration and the formation of strongly bonded fiber–matrix interface. Therefore, it is concluded that the high temperature mechanical properties under vacuum were related to the consisting phase, the matrix microstructure, and the thermally-induced residual stresses.

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Section: Introductionmentioning

confidence: 99%

High-temperature Mechanical Properties and Their Influence Mechanisms of ZrC-Modified C-SiC Ceramic Matrix Composites up to 1600 °C

et al. 2020

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“…23 With respect to the processing fibre-reinforced composites, a large number of studies have been summarized and reviewed in the literature. 24,25…”

Section: Introductionmentioning

confidence: 99%

Understanding the structure and cutting mechanism of shaver blades: A case study on articular cartilage

Zhang

Chen

Wang

et al. 2022

Proc Inst Mech Eng H

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Mechanical shaver blades have been used in minimally invasive knee arthroscopy surgery for nearly 50 years, however, the tooth structure and cutting mechanism of shaver blades were less reported. This paper designed several shaver blades (triangular tooth/TT, circular tooth/CT and convex arc tooth/CAT), defined the cutting edges and angles of the original shaver (OS) and proposed a newly designed shaver (NDS) with a positive secondary rake angle to optimize cutting performance. The cutting process and theoretical model of the OS and NDS were analysed from 2D and 3D perspectives. A comparative experimental analysis of cutting performance, including cutting force, surface roughness, and groove geometries, was carried out to verify the influence of tooth structures and secondary rake angle. The results showed that the tooth of the OS has three different cutting edges, among which the secondary cutting edge sited at the tube section contributes to the puncturing process, and the primary cutting edge located on the outer wall of the tube participates in the oblique cutting process and finally removes the soft tissue. The cutting process of the secondary cutting edge of NDS has been changed from puncturing to oblique cutting, therefore, only the oblique cutting exists throughout the shaving process. This makes the shape and quantity of the chips of OS and NDS different, which has been verified by experiment. The cutting performance of CT was superior to that of TT and CAT, highlighting the importance of tooth roots in the cutting process. Positive secondary rake angle significantly improved the cutting performance of CAT, but not that of TT with a small profile angle (30°) and CT, which means both the puncturing and oblique cutting play important roles. Not all the positive secondary rake angle was helpful to the cutting process and 30° and 45° were suggested.

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“…Carbon fiber reinforced silicon carbide matrix (C/SiC) composites are typical ceramic matrix composites (CMC) that combine reinforced carbon fiber and SiC ceramic matrix by special preparation process 1 2–5 and hence they are widely used in aerospace, automobile manufacturing, and other industries 6–9 .…”

Section: Introductionmentioning

confidence: 99%

Multiple nonlinear regression model of cutting force for C/SiC composites by laser‐assisted micromachining

Zhai

Nie

et al. 2021

Int J Applied Ceramic Tech

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Based on the response surface methodology (RSM), laser‐assisted micromachining (LAMM) experiments of carbon fiber reinforced silicon carbide matrix(C/SiC) composites have been carried out to obtain the data of three‐direction cutting forces Fx, Fy, Fz, and result‐force F in the cutting process. A stepwise regression method is used to screen out the factors that significantly affected the cutting force, and hence a multivariate nonlinear mathematical regression model has been established. Through the analysis of variance and regression analysis, the R2 of the regression model is the cutting force Fx: 0.975, the cutting force Fy: 0.970, the cutting force Fz: 0.972, the resultant force F: 0.987, and the probability p > F‐values are all less than 0.001. The model analysis results show that the main effects and interactions of the three factors of laser power, cutting speed, and cutting depth significantly influence the cutting force. The main effect of the most considerable influence on the resultant F is cutting depth, followed by cutting speed and laser power, and the interactive effect is cutting speed and cutting depth. The experimental results show that the model prediction results are in good agreement with the experimental results.

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The new challenges of machining Ceramic Matrix Composites (CMCs): Review of surface integrity

Cited by 242 publications

References 70 publications

High-temperature Mechanical Properties and Their Influence Mechanisms of ZrC-Modified C-SiC Ceramic Matrix Composites up to 1600 °C

High-temperature Mechanical Properties and Their Influence Mechanisms of ZrC-Modified C-SiC Ceramic Matrix Composites up to 1600 °C

Understanding the structure and cutting mechanism of shaver blades: A case study on articular cartilage

Multiple nonlinear regression model of cutting force for C/SiC composites by laser‐assisted micromachining

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