scholarly journals Analysis of Surface Roughness and Burr Height in Drilling of Aluminium Matrix Composites using Taguchi Technique

2020 ◽  
Vol 12 (2) ◽  
pp. 173-182
Author(s):  
C. SARALA RUBI ◽  
J. UDAYA PRAKASH
Keyword(s):  
Surface Roughness ◽  
Fly Ash ◽  
Casting Process ◽  
Stir Casting ◽  
Al Alloy ◽  
Matrix Composites ◽  
Taguchi Technique ◽  
Burr Height ◽  
Response Table ◽  
Reinforcing Material

The present research involves the opportunity of utilising the signal to noise (S/N) ratio analysis to set machining factors in the drilling of aluminium alloy LM6-Fly ash composites (AMCs). The purpose of this research is to understand, during drilling of AMCs, the consequences of variables, feed rate, spindle speed, drill material and amount of reinforcing material on surface roughness and burr height. AMCs are formed with LM6 (Al alloy) as continuous component via the stir casting process and fly ash as reinforced content. The Taguchi design strategy is a widely accepted method which is used to produce quality products that require minimum commitment. Likewise, the L27 orthogonal array is used for conducting experiments. The response table, response graphs and analysis of variance (ANOVA) illustrate the prospective atmosphere and the impacts of input process variables. Taguchi technique considerably enhances the drilling operation.

Synthesis and Characterization of Al 7075 Alloy Reinforced with Silicon Carbide and Fly Ash

2019 ◽  
Vol 11 (3) ◽  
Author(s):  
G. Sathishkumar ◽  
S.J. Irudayaraja ◽  
S. Sivaganesan ◽  
M. Thuyavan
Keyword(s):  
Mechanical Properties ◽  
Fly Ash ◽  
Casting Process ◽  
Stir Casting ◽  
Industrial Applications ◽  
Matrix Composites ◽  
Specific Strength ◽  
Al 7075 ◽  
7075 Alloy

Metal matrix composites are of great interest in industrial applications for its light weight with high specific strength, stiffness and heat resistance. The processing of MMCs by stir casting process is an effective way of manufacturing. In this paper the comparison of mechanical properties of Aluminium 7075 as a base metal and varying composition of fly ash by 3 and 6 wt.% SiC and 7% fly ash as reinforcement is carried out. Scanning electron microscope was used to confirm the presence of SiC and fly ash. The composites with 6% SiC was found to have maximum hardness whereas composites of 6% and 5 % fly ash were found to have minimum hardness. The mechanical properties such as wear resistance were studied. From the results, it has been finalized that the addition of 6% SiC was identified to show the least wear rate.

scholarly journals Synthesis, Characterization and Testing of Al Alloy Based Hybrid Composite Materials

2019 ◽  
Vol 9 (2S2) ◽  
pp. 139-142
Keyword(s):  
Composite Materials ◽  
Casting Process ◽  
Stir Casting ◽  
Homogeneous Distribution ◽  
Al Alloy ◽  
Matrix Composites ◽  
Boron Carbide B4c ◽  
Weight Proportion

The developments in the area of aerospace, advancing activities in aircraft field and automotive industry emerges the exploit of new materials. In such applications, the role of Metal Matrix Composites (MMCs) is inevitable. In the proposed article, the fabrication of Al (6351) alloy reinforced with SiC and varying weight proportion of Boron Carbide (B4C) was done through stir casting process. The characterization of prepared composite materials is evaluated to ensure the homogeneous distribution of reinforced particulates in Al matrix. The existence of alloying elements and their mapping is done through EDS. Moreover, the enhancement of physical and mechanical behavior of the fabricated composites is also discussed in detail.

scholarly journals Synthesis and Optimization of AA 7175 – Zirconium Carbide (ZrC) Composites Machining Parameters

2021 ◽  
Vol 24 (1) ◽  
pp. 34-37
Author(s):  
T. Sathish ◽  
N. Sabarirajan
Keyword(s):  
Surface Roughness ◽  
Zirconium Carbide ◽  
Casting Process ◽  
Stir Casting ◽  
Machining Process ◽  
Depth Of Cut ◽  
Material Strength ◽  
Machining Parameters ◽  
Matrix Composites ◽  
3D Profilometry

The airline sector mostly preferable material as aluminium and its alloy due to light weight and better resistance combatant for environmental factors. In this work mainly focusing to fabricate the aluminium matrix composites and reducing the surface roughness value of the specimen in the machining process. Initially the AA7175 with reinforcement of zirconium carbide (ZrC) particles are synthesized by the route of stir casting process, the stirring deed improve the material strength. The Design of experiments is involved to optimize the machining (CNC vertical milling) parameters such as Spindle rotational speed (2000 rpm, 2400 rpm and 2800 rpm), Machine feed rate (1000 mm/min, 1400 mm/min and 1800 mm/min) and depth of cut (0.3mm, 0.6 mm and 0.9 mm). The L 27 orthogonal array model is conducted to optimize the factors with the help of Minitab numerical analysis. This approach finds the optimal factors and reduces the surface roughness value, the microstructure examine is carried out and its image is translated to analyze the 3D profilometry technique.

Corrosion Investigation and Microstructure of High Calcium Fly Ash Reinforced Al6061

2019 ◽  
Vol 824 ◽  
pp. 260-266
Author(s):  
Onthida Kosasang ◽  
Autsadawooth Kummoo ◽  
Ratchapol Konghakot ◽  
Sukangkana Talangkun
Keyword(s):  
Fly Ash ◽  
Corrosion Behavior ◽  
Casting Process ◽  
Stir Casting ◽  
Polarization Measurement ◽  
Matrix Composites ◽  
Alloy Matrix ◽  
High Calcium ◽  
High Calcium Fly Ash ◽  
Corrosion Investigation

In this study, the effect of high Ca fly ash on the corrosion behavior and microstructure of Al6061 alloy matrix composite was investigated. The Al6061 matrix composites containing 5, 7, and 10 wt% of fly ash particles were prepared by the stir casting process. The corrosion behavior was investigated using potentiodynamic polarization measurement using 5 wt% NaCl. The results revealed that the Icorr increased from 2.44 µA/cm2 to 8.60 µA/cm2 as the fly ash concentration increased from 5 wt% to 10 wt%. This increase of Icorr indicates an increase of the corrosion rate. The corrosion mainly occurs at the interface between fly ash particles and Al 6061 matrix.

scholarly journals The Investigation of Machinability and Surface Properties of Aluminium Alloy Matrix Composites

2021 ◽  
Vol 53 (4) ◽  
pp. 210412
Author(s):  
Priyadarsini Morampudi ◽  
Venkata Ramana V.S.N. ◽  
Koona Bhavani ◽  
Amrita M ◽  
V Srinivas
Keyword(s):  
Surface Roughness ◽  
Aluminum Matrix ◽  
Stir Casting ◽  
Aluminum Matrix Composites ◽  
Al Alloy ◽  
Matrix Composites ◽  
Casting Method ◽  
Alloy Matrix ◽  
The Matrix ◽  
Aluminium Alloy Matrix

Aluminum matrix composites (AMCs) are crucial to the progress of composite application areas due to their remarkable mechanical properties. Their usage has expanded into different fields such as the aerospace, automobile, and defense industries. The present study used wrought Al alloy AA6061 as the matrix, while ilmenite (FeTiO3) particles were used as reinforcement at different weight percentages to prepare metal matrix composites. One of the most economical and simple casting routes among the several available fabrication techniques for the preparation of composites is the stir casting method, which was applied in the present investigation to prepare the AMCs. The machinability of the fabricated composites and the surface roughness property after machining were studied to understand the effect of speed and feed during machining. The results showed that an increase in speed decreased the cutting forces and the surface roughness. Meanwhile, an increase in surface roughness was observed with an increase in feed.

scholarly journals Assessment of Surface Roughness in EDM of RHA, Cu and Mg Reinforced Hybrid MMC using L27 Taguchi’s Orthogonal Array Technique

2020 ◽  
Vol 9 (3) ◽  
pp. 3128-3135
Keyword(s):  
Surface Roughness ◽  
Orthogonal Array ◽  
Hybrid Composites ◽  
Agricultural Waste ◽  
Stir Casting ◽  
Al Alloy ◽  
Matrix Composites ◽  
Weight Percentage ◽  
Alloy 6061 ◽  
Al Matrix

The goal of this research is to develop Al alloy 6061 matrix composites of lower cost with higher performance with the using agricultural waste Rice Husk Ash (RHA) as a major reinforcement. The weight percentage of RHA at 6,8 and 10 % is used in the basic matrix of Al6061 alloy. The copper (Cu) and magnesium (Mg) are kept at constant level i.e 3% and 1 % of weight(wt) respectively. The Al-matrix hybrid composites have been developed by stir casting method. The investigation has been made to explore the effect of different weight percentage of RHA reinforced hybrid composite and other machining factors on Surface Roughness(SR) for machining of Al matrix hybrid composites using electric discharge machining (EDM) by Taguchi’s approach. An L27 Orthogonal Array (OA) for 6 different factors each at 3 stages, has been selected to perform the experiments. Optimal combination of SR-related parameters of machining and the significant parameters has been highlighted. Machined surfaces have been characterised by SEM micrographs

XD™ Titanium Aluminide Composites

1988 ◽  
Vol 120 ◽  
Author(s):  
L. Christodoulou ◽  
P. A. Parrish ◽  
C. R. Crowe
Keyword(s):  
Titanium Aluminide ◽  
Elevated Temperatures ◽  
Coefficient Of Thermal Expansion ◽  
Measurement Techniques ◽  
Physical Property ◽  
Casting Process ◽  
Matrix Composition ◽  
Al Alloy ◽  
Matrix Composites ◽  
New Generation

AbstractThe advantages of reinforcing metals with ceramic particles to produce metal matrix composites are well known. The behavior of discontinuously reinforced intermetallic compounds, however, has not been extensively studied. Martin Marietta Laboratories has produced a new generation of discontinuously reinforced titanium aluminide composites using a proprietary casting process known as XD™ technology. These new materials possess enhanced properties at room and elevated temperatures and may be cast, extruded, or forged. The effects of matrix composition, reinforcing phase, and thermal mechanical processing on properties have been studied using optical and various electron microscopy and mechanical and physical property measurement techniques to characterize the alloys. To date, most work has been done on a two-phased lamellar Ti-45 a/o Al alloy reinforced with TiB2 ceramic having an equiaxed morphology. Data on temperature dependence of the dynamic Young's modulus, coefficient of thermal expansion, deformation and fracture behavior, and microstructure are presented.

Sign in / Sign up

Export Citation Format

Share Document