Machinability Analysis of Aluminum Alloy-Graphene Metal Matrix Composites Using Uncoated and DLC-Coated Carbide Insert

2017 ◽  
Author(s):  
J. Joel ◽  
M. Anthony Xavior
Keyword(s):  
Metal Matrix Composites ◽  
Metal Matrix ◽  
Surface Hardness ◽  
Tool Material ◽  
Hot Extrusion ◽  
Cutting Parameters ◽  
Extrusion Process ◽  
Work Piece ◽  
Matrix Composites ◽  
Coated Carbide

Metal Matrix Composites (MMCs) based on Aluminum Alloys 2024, 6061 and 7075 reinforced with Graphene was fabricated using powder metallurgy process followed by hot extrusion process. The extruded samples were used for conducting the turning experiments to evaluate the machinability of the developed composites. Turning experiments were conducted in ACE Micromatic made CNC lathe as per the Design of Experiments (DOE) designed using L18 Taguchi’s mixed orthogonal array. Uncoated and DLC coated carbide inserts, along with three levels of cutting speeds, feed rates and depths of cut were considered for the turning experiments. During the experiments the cutting force generated was recorded “online” and subsequent to the experimentation the surface roughness generated on the work piece and the surface hardness for every trial were recorded. The influence of the cutting tool material and other cutting parameters on the machinability of composites was analyzed using ANOVA. The microstructural observation on the surface of the machined specimen reveals the detachment of reinforcement materials from the composite and their impact of the surface quality.

Experimental Studies on Machinability of 14 wt.% of SiC Particle Reinforced Aluminium Alloy Composites

2012 ◽  
Vol 723 ◽  
pp. 94-98 ◽  
Author(s):  
Sheng Qin ◽  
Xiao Jiang Cai ◽  
Yu Sheng Zhang ◽  
Qing Long An ◽  
Ming Chen
Keyword(s):  
Metal Matrix Composites ◽  
Metal Matrix ◽  
End Milling ◽  
Experimental Studies ◽  
Cutting Speed ◽  
Cutting Parameters ◽  
Matrix Composites ◽  
Coated Carbide ◽  
Coated Carbide Tools ◽  
Aluminium Metal

Since metal matrix composites (MMCs) have increasing applications in industries, this paper presents an experimental investigation on machinability of SiCp reinforced aluminium metal matrix composites. 14 wt.% of SiCp reinforcement addition composite was studied in end milling using CVD coated carbide tools under different cutting parameters. By experimental results, the relationships of cutting force and surface roughness with cutting speed and feed were discussed. Some defects concerning surface topography such as ploughed furrow, pits, matrix tearing, etc. were examined by SEM.

scholarly journals Review on Machining of Aluminium Metal Matrix Composites

2014 ◽  
Vol 11 (2) ◽  
pp. 114-120 ◽  
Author(s):  
Pushpendra Jain ◽  
S Soni ◽  
Prashant Baredar
Keyword(s):  
Metal Matrix Composites ◽  
Metal Matrix ◽  
Cutting Parameters ◽  
Operating Conditions ◽  
Machining Parameters ◽  
Matrix Composites ◽  
Wide Range ◽  
Attractive Option ◽  
Superior Mechanical Properties ◽  
Aluminium Metal

Metal matrix composites have superior mechanical properties in comparison to metals over a wide range of operating conditions. This make them an attractive option in replacing metals for various engineering applications. This paper provides a literature review, on machining of Aluminium metal matrix composites (AMMC)especially the particle reinforced Aluminium metal matrix composites. This paper is an attempt to give brief account of recent work to predict cutting parameters &surface generated in AMMC.By suitably selecting the machining parameters, machining of AMMC can be made economical.

scholarly journals Cylindrical grinding of Al/SiC metal matrix composites

2010 ◽  
Vol 7 (2) ◽  
pp. 425-433
Author(s):  
C. Thiagarajan ◽  
R. Sivaramakrishnan ◽  
S. Somasundaram3
Keyword(s):  
Metal Matrix Composites ◽  
Metal Matrix ◽  
Volume Fraction ◽  
Depth Of Cut ◽  
Work Piece ◽  
Matrix Composites ◽  
Cylindrical Grinding ◽  
Good Surface ◽  
Good Surface Finish ◽  
Finishing Processes

This paper deals with an experimental study on the grindability of Al/SiC metal matrix composites in cylindrical grinding. Machining of metal matrix composites (MMCs) is an area to be focused and finishing processes such as grinding to obtain a good surface finish and damage-free surfaces are crucial for the application of these materials. Nevertheless, grinding of MMCs has received little attention so far, thereby a detailed study on that has been carried out. In the present work, experiments are carried out to study the effect of grinding parameters; wheel velocity, work piece velocity, feed and depth of cut and SiC volume fraction percentage on the responses; grinding force, surface roughness and grinding temperature. Surface integrity of the ground surfaces is assessed using a scanning electron microscope (SEM). There are no cracks and defects found on the cylindrical ground surfaces at high wheel and work piece velocities, low feed and depth of cut.

scholarly journals Machinability and Wear of Aluminium based Metal Matrix Composites by MQL - A Review

2017 ◽  
Vol 14 (2) ◽  
pp. 194-203
Author(s):  
Ankush Kohli ◽  
H. S. Bains ◽  
Sumit Jain ◽  
D. Priyadaradarshi
Keyword(s):  
Metal Matrix Composites ◽  
Working Conditions ◽  
Metal Matrix ◽  
Minimum Quantity Lubrication ◽  
Cutting Parameters ◽  
Surface Structures ◽  
Matrix Composites ◽  
Survey Report ◽  
Extensive Range ◽  
Aluminium Metal

Metal matrix composites have exhibited better mechanical properties in comparison withconventional metals over an extensive range of working conditions. This makes them an appealing alternative in substituting metals for different applications. This paper gives a survey report, on machining of Aluminium metal Matrix composites (AMMC), particularly the molecule strengthened Aluminium metal matrix composites. It is an endeavour to give brief record of latest work to anticipate cutting parameters and surface structures in AMMC. The machinability can be enhanced by the utilization of Minimum Quantity Lubrication (MQL) during the machining of AMMC.

Evaluation of the Surface Integrity when Machining LM6 Aluminum Metal Matrix Composites Using Coated and Uncoated Carbide Cutting Tools

2013 ◽  
Vol 465-466 ◽  
pp. 1049-1053 ◽  
Author(s):  
Abu Bakar Mohd Hadzley ◽  
Ahmad Siti Sarah ◽  
Raja Abdullah Raja Izamshah ◽  
Amran Ali Mohd ◽  
Mohd Shahir Kasim ◽  
...  
Keyword(s):  
Metal Matrix Composites ◽  
Surface Integrity ◽  
Feed Rate ◽  
Metal Matrix ◽  
End Milling ◽  
Cutting Tools ◽  
Depth Of Cut ◽  
Matrix Composites ◽  
Radial Depth ◽  
Coated Carbide

Metal matrix composite is composite material that combines the metallic properties of matrix alloys and additional element to reinforce the product. This paper evaluates the machining performance of uncoated carbide and coated carbide in terms of surface integrity during end milling of LM6 aluminium MMC. The parameter of cutting speed, feed rate and axial depth of cut were kept constant at 3000 rpm spindle speed, 60 mm/min feed rate and 0.5 axial dept of cut. The radial depth of cut were varied from 0.01mm to 0.1 mm. The results indicated that uncoated carbide show the better performance in terms of surface roughness and surface profile, as compared to coated carbide. On the other hand, coated carbide cutting tools suffered with built-up-edge formation at the tool edge, hence caused shearing effect and deterioration at the tool-chip interface. This study is expected to provide understanding of machining metal matrix composites based materials.

Sign in / Sign up

Export Citation Format

Share Document