Design and development of abrasive-assisted drilling process for improvement in surface finish during drilling of metal matrix composites

2014 ◽  
Vol 228 (8) ◽  
pp. 858-867 ◽  
Author(s):  
Sarbjit Singh ◽  
Inderdeep Singh ◽  
Akshay Dvivedi
Keyword(s):  
Metal Matrix Composites ◽  
Surface Finish ◽  
Metal Matrix ◽  
Drilling Process ◽  
Matrix Composites ◽  
Design And Development

Roughness Analysis of the Holes Drilled on Al / SiC Metal Matrix Composites Using Atomic Force Microscope

2015 ◽  
Vol 766-767 ◽  
pp. 837-843
Author(s):  
S. Senthilbabu ◽  
B.K. Vinayagam ◽  
J. Arunraj
Keyword(s):  
Atomic Force Microscope ◽  
Metal Matrix Composites ◽  
Surface Finish ◽  
Metal Matrix ◽  
Vertical Section ◽  
Cutting Speed ◽  
Drilling Process ◽  
Matrix Composites ◽  
Average Roughness ◽  
Atomic Force

Metal matrix composites (MMCs) possess significantly improved properties including high strength to wear ratio, high modulus, superior wear resistance and corrosion resistance compared to unreinforced alloys. In spite of the advantages, the Aluminium based metal matrix composites have not yet found a wide employment in the commercial applications, because the the matrix cause serious problems in machining / drilling, such as high drilling forces, tool wear, and poor surface finish due to the hard particles. The drilling of Al/SiC metal matrix composite has received a serious attention for many years. Different specimens were prepared from Aluminium / Silicon carbide (Sic) metal matrix composites by stir casting method by varying the weight percentage of Sic and the investigation has been carried out on the specimen by drilling holes on them. Surface finish is an important factor to be taken into account in the drilling process. So, it is more necessary to predict the average surface roughness of the materials. Then the roughness of the drilled holes made on the specimen was studied using Atomic force microscope. The investigation was carried out with their characteristics being studied by comparing various parameters such as cutting speed, feed rate and so on. The average roughness was studied on 30µm X 30µm and 15 µm X 15µm horizontal section and vertical section. Their histograms were also studied.

Reinforcement and Cutting Tools Interaction during MMC Machining - A Review

2018 ◽  
Vol 22 ◽  
pp. 47-54 ◽  
Author(s):  
Mukesh Chaudhari ◽  
M. Senthil Kumar
Keyword(s):  
Tool Wear ◽  
Metal Matrix Composites ◽  
Process Parameters ◽  
Surface Finish ◽  
Metal Matrix ◽  
Cutting Tools ◽  
Tool Geometry ◽  
Matrix Composites ◽  
Good Surface ◽  
Aerospace Medical

Aluminum based metal matrix composites (AMMC) have found its applications in the automobile, aerospace, medical, and metal industries due to their superior mechanical properties. Fabricated Aluminum based metal matrix composites require machining to improve the surface finish and dimensional tolerance. Machining should be accomplished by good surface finish by consuming lowest energy and less tool wear. This paper reviews the machining of Aluminum based metal matrix composites to investigate the effect of process parameters such as tool geometry, tool wear, surface roughness, chip formation and also process parameters.

Machinability of Al-4%wt Mg-Al2O3-Graphite Composites Produced by Compo-Casting Technique

2010 ◽  
Vol 636-637 ◽  
pp. 171-176 ◽  
Author(s):  
Adel M. Hassan ◽  
Mohammad Hayajneh ◽  
M.K. Al-Mahasneh
Keyword(s):  
Metal Matrix Composites ◽  
Metal Matrix ◽  
High Speed ◽  
High Speed Steel ◽  
Drilling Process ◽  
Matrix Composites ◽  
Volume Percentage ◽  
Graphite Particles ◽  
Particulate Metal ◽  
Thrust Forces

Aluminium-4%wt Magnesium-Alumina-Graphite particulate metal matrix composites, with different percentage weights of alumina and graphite particles, were produced by the process of compo-casting. The method of casting has been briefly described in the present study. The magnesium was added to the aluminium as wetting agent to enhance the bond between the matrix (aluminium) and the reinforcement particles (alumina and graphite). Machinability of the considered composites was indicated by the values of the drilling thrust forces and torques, using a moderate speed drilling machine. The cutting tools were made of high speed steel, while the other cutting parameters were held constant during the drilling process. The results showed that the change in the volume percentage of both alumina and graphite particles have remarkable effect on the measured drilling thrust forces and torques, which in turn affect the machinability of the studied particulate metal matrix composites.

Water-jet guided laser drilling of SiC reinforced aluminium metal matrix composites

2019 ◽  
Vol 53 (26-27) ◽  
pp. 3787-3796 ◽  
Author(s):  
S Marimuthu ◽  
J Dunleavey ◽  
Y Liu ◽  
B Smith ◽  
A Kiely ◽  
...  
Keyword(s):  
Metal Matrix Composites ◽  
Metal Matrix ◽  
Laser Drilling ◽  
Water Jet ◽  
Drilling Process ◽  
Matrix Composites ◽  
Laser Process ◽  
Wide Range ◽  
Aluminium Metal ◽  
Conventional Laser

Laser drilling of monolithic materials like metals and alloys is a well-established process and used extensively in a wide range of applications in many sectors including aerospace, medical and automotive. However, conventional laser drilling of materials like metal matrix composites is challenging due to the differences in the chemical and physical properties of the hard ceramic reinforcement particles and the soft-metal matrix. The water-jet guided laser process has the potential to machine advanced materials such as an aluminium metal matrix composite reinforced with silicon carbide particles (Al MMC), with exceptional quality. The main objective of this research is to understand the material removal mechanism associated with water-jet guided laser drilling of Al MMCs and compare this with conventional laser drilling of Al MMC. Experimental results showed that the water-jet guided laser process is an excellent technique for drilling holes in composite materials like metal matrix composites. During water-jet guided laser drilling of Al MMC, the material has been removed by cold ablation, without leaving any residual melt layer within the bulk material. Both soft-matrix and hard-particles are removed by the same process of cold ablation, which is completely different to the conventional laser drilling process in which the solid SiC are ejected without melting, along with the molten aluminium.

scholarly journals Experimental Investigation of Process Parameters in Drilling LM25 Composites Coated with Multi Wall Carbon Nano Tubes Using Sonication Process

2017 ◽  
Vol 62 (3) ◽  
pp. 1761-1770
Author(s):  
M. Sangeetha ◽  
S. Prakash
Keyword(s):  
Carbon Nanotubes ◽  
Silicon Carbide ◽  
Metal Matrix Composites ◽  
Metal Matrix ◽  
Thrust Force ◽  
Stir Casting ◽  
Disc Brake ◽  
Drilling Process ◽  
Matrix Composites ◽  
Input Parameters

AbstractAluminium based metal matrix composites are widely used in automobile components such as cardan shaft of Chevrolet corvette, disc brake and engine push rod. In this experiment a Hybrid Metal Matrix Composites (HMMC) are fabricated and drilled. Drilling is the process of making slots in disc brake and thread in the engine parts. The surface quality of the drilled specimen depends on the speed, feed, drill type and the thrust force. Thrust force plays the major role in drilling the specimen. In this experiment HMMCs are fabricated using two processes-called, sonication and casting. Sonication is the process of coating the carbon nanotubes over the silicon carbide particles (SiCp). Semisolid stir casting is used to reinforce the coated SiCp in the LM 25 alloy. A drilling process is performed on HMMC to analyse the extent to which the input parameters influence the thrust force and Ovality. The tools used for drilling are solid carbide tools of three different diameters. Taguchi’s experimental design is adopted for the drilling operation. A mathematical model is used to determine the influence of input parameters on the outputs thrust force and ovality. This paper proves the combination of N3, f1and d1of the carbide tool results in the lowest value of thrust force and ovality while drilling HMMCs. In this work the HMMC is prepared by coating the abrasive nature, silicon carbide particle and there is a good interfacial bonding between the reinforced particle and matrix and the drilling process becomes smoother. The new being of this article is the treated ceramics, SiCp with carbon nanotubes. This HMMC shows the improved mechanical properties compared to other metal matrix composites surveyed in the literatures.

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