An Experimental Study on Rotary Ultrasonic Machining of High Volume Fraction Silicon Carbide-reinforced Aluminum Matrix Composites (SiCp/Al)

2017 ◽  
Vol 53 (19) ◽  
pp. 107 ◽  
Author(s):  
Huiting ZHA
Keyword(s):  
Experimental Study ◽  
Silicon Carbide ◽  
Volume Fraction ◽  
Aluminum Matrix ◽  
High Volume ◽  
High Volume Fraction ◽  
Aluminum Matrix Composites ◽  
Matrix Composites ◽  
Ultrasonic Machining ◽  
Rotary Ultrasonic Machining

Modeling and Stability Analysis of SiCp/Al Composites Thin-Walled Workpiece in Rotary Ultrasonic Machining

2012 ◽  
Vol 591-593 ◽  
pp. 527-530
Author(s):  
Ming Wang ◽  
Ming Zhou
Keyword(s):  
Stability Analysis ◽  
Volume Fraction ◽  
Aluminum Matrix ◽  
High Volume ◽  
Machining Process ◽  
Aluminum Matrix Composites ◽  
Matrix Composites ◽  
Ultrasonic Machining ◽  
Rotary Ultrasonic Machining ◽  
Thin Walled

Particle reinforced aluminium matrix composites could be used in manufacturing of aviation thin-walled workpiece due to its excellent performances, but it is hard to be manufactured. Rotary ultrasonic machining (RUM) is very suitable for machining particle reinforced aluminum matrix composites with moderate or high volume fraction. Chatter appears very easily in machining process of thin-walled workpiece and it can seriously reduce the quality of components. Based on the dynamic characteristics of machining process, a stability analytical model is built. It is analyzed that the process stability of a thin-walled workpiece of SiCp/Al composites reinforced with 45% volume fraction, and the stability lobe diagram is plotted by using MATLAB. According to stability analysis results, a machining experiment is conducted and the test results indicate chatter could be prevented effectively by this method.

Research on Grinding of Silicon Particles Reinforced Aluminum Matrix Composites with High Volume Fraction

2014 ◽  
Vol 1017 ◽  
pp. 98-103
Author(s):  
Fei Hu Zhang ◽  
Kai Wang ◽  
Peng Qiang Fu ◽  
Meng Nan Wu
Keyword(s):  
Surface Roughness ◽  
Silicon Carbide ◽  
Volume Fraction ◽  
Aluminum Matrix ◽  
High Volume ◽  
Grinding Force ◽  
Aluminum Matrix Composites ◽  
Work Piece ◽  
Matrix Composites ◽  
Silicon Particles

With silicon particles reinforced aluminum matrix composites with high volume fraction becoming a new hotspot on research and application in the aerospace materials and electronic packaging materials, the machinability of this material needs to be explored. This paper reports research results obtained from the surface grinding experiment of silicon particles reinforced aluminum matrix composites using black silicon carbide wheel, green silicon carbide wheel, white fused alumina wheel and chromium alumina wheel. The issues discussed are grinding force, surface roughness, the comparison of different grinding wheels, the micro-morphology of the work piece. The results showed that the grinding force was related with the grinding depth and the grinding wheel material, the grinding force was increasing as the grinding depth growing. The surface roughness was between 0.29μm and 0.48μm using the silicon carbide wheel. The surface of the work piece had concaves caused by silicon particles shedding and grooves caused by the grains observed by the SEM and CLSM.

scholarly journals Research on the Secondary Forgeability of High Volume Fraction Whisker Reinforced Aluminum Matrix Composites of Original Squeeze Casting

Materials ◽  
2021 ◽  
Vol 14 (23) ◽  
pp. 7261
Author(s):  
Shucong Xu ◽  
Lin Yuan ◽  
Lei Wang ◽  
Jinyu Li ◽  
Fuchang Xu ◽  
...  
Keyword(s):  
Squeeze Casting ◽  
Volume Fraction ◽  
Aluminum Matrix ◽  
High Volume ◽  
High Volume Fraction ◽  
Forming Limit ◽  
Aluminum Matrix Composites ◽  
Matrix Composites ◽  
The Poor ◽  
Further Development

The poor formability of high volume fraction whisker reinforced aluminum matrix composites of original squeeze casting is an important factor restricting its further development and application. Currently, there are no reports on the secondary forgeability of aluminum matrix composites of original squeeze casting, although some papers on its first forgeability are published. The secondary forgeability is very important for most metals. This study aims to investigate the secondary forgeability of aluminum matrix composites. In this study, the secondary upsetting experiments of 20 vol% SiCw + Al18B4O33w/2024Al composites, treated by the original squeeze casting and extrusion, were carried out. The first upsetting deformation is close to the forming limit, the secondary upsetting deformation under the same deformation conditions was carried out to investigate the secondary forgeability. The experimental results show that, unlike aluminum alloys, the 20 vol% SiCw + Al18B4O33w/2024Al composites at the original squeeze casting and extrusion states have no secondary forgeability due to the whisker rotating and breaking during the secondary upsetting. The high volume fraction whisker reinforced aluminum matrix composites of original squeeze casting cannot be formed by the multiple-forging method since the cavities and cracks caused by whisker fracture continue to expand during secondary processing, which leads to further extension of macroscopic cracks.

scholarly journals Study on Meso-scale Grinding Surface Roughness and Sub-surface Quality of High Volume Fraction SiCp/Al2024 composites

2021 ◽  
Author(s):  
Guangyan Guo ◽  
Qi Gao ◽  
Quanzhao Wang ◽  
Yuanhe Hu
Keyword(s):  
Surface Roughness ◽  
Surface Quality ◽  
Volume Fraction ◽  
Aluminum Matrix ◽  
High Volume ◽  
High Volume Fraction ◽  
Aluminum Matrix Composites ◽  
Sic Particles ◽  
Meso Scale

Abstract In order to improve the surface grinding quality of high volume fraction aluminum matrix composites, the cutting tool models with different rake angles are established, the grinding process is simulated, and the material removal mechanism and the broken state of SiC particles are obtained. Through single factor experiment, the 60% volume fraction SiCp/Al2024 composites are ground by diamond grinding rod with 3mm diameter, the surface roughness (Ra) is measured, and the surface and sub-surface quality of SiCp/Al2024 composites with meso-scale grinding is investigated. Meanwhile, the influence mechanism of grinding depth (ap) on surface quality is put forward, and the influence of different grinding depth on the fragmentation of SiC particles in sub-surface layer is discussed, which verifies the correctness of grinding simulation. The relevant research and theoretical model are of great significance to the study of grinding properties of composite materials.

scholarly journals Rotary ultrasonic machining of SiCp/Al composites: An experimental study on cutting force and machinability

2019 ◽  
Vol 11 (12) ◽  
pp. 168781401989832
Author(s):  
Ming Wang ◽  
Wei Zheng ◽  
Ming Zhou ◽  
Qun Zhang
Keyword(s):  
Experimental Study ◽  
Cutting Force ◽  
Volume Fraction ◽  
High Volume ◽  
Processing Parameters ◽  
Grinding Force ◽  
Ultrasonic Machining ◽  
Processing Quality ◽  
Rotary Ultrasonic Machining ◽  
The Cost

To improve the processing quality and reduce the cost of SiCp/Al composites has become a key problem for its application. Rotary ultrasonic machining is highly suitable for machining of SiCp/Al composites with a medium or high volume fraction of reinforced phase, and the processing quality and efficiency could be improved greatly. In this article, the rotary ultrasonic machining experiments were performed for the SiCp/Al composites reinforced with 45% volume fraction, and the effects of processing parameters on the cutting force of face and flank machining were studied. The cutting force values reduce significantly, and the grinding force ratios Fn/ Ft of face and flank machining are 2.843 and 1.336, respectively, which indicate that better machinability can be achieved for SiCp/Al composites using rotary ultrasonic machining.

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