Refine your search
Collections
Co-Authors
Journals
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z All
Srinivasan, K.
- Developing Empirical Relationship to Predict the Strength of Friction STIR Lap Welded Joints of AA2014-T6 Aluminum Alloy
Abstract Views :163 |
PDF Views:1
Authors
Affiliations
1 Centre for Materials Joining and Research (CEMAJOR), Dept of Manufacturing Engineering, Annamalai University, Annamalainagar, IN
2 Aeronautical Development Agency (ADA), Bangalore, IN
1 Centre for Materials Joining and Research (CEMAJOR), Dept of Manufacturing Engineering, Annamalai University, Annamalainagar, IN
2 Aeronautical Development Agency (ADA), Bangalore, IN
Source
Manufacturing Technology Today, Vol 15, No 3 (2016), Pagination: 12-23Abstract
AA2014 aluminum alloy (Al-Cu alloy) has been widely utilized in fabrication of lightweight structures like aircraft structures, demanding high strength to weight ratio and good corrosion resistance. The fusion welding of these alloys will lead to solidification problems such as hot cracking, alloy segregation, partially melted zone, and porosity. Friction stir welding is a new solid state welding process, in which the material being welded does not melt and recast. Lot of research works have been carried out by many researchers to optimize process parameters and establish empirical relationships to predict tensile strength of friction stir welded butt joints of aluminum alloys. However, very few investigations have been carried out on friction stir welded lap joints of aluminum alloys. Hence, in this investigation, an attempt has been made to develop empirical relationship to predict strength of friction stir lap welded (FSLW) joints of AA2014 aluminum alloy using statistical tools such as design of experiments (DoE), analysis of variance (ANOVA). The developed empirical relationship can be effectively used to predict the strength of friction stir welded lap joints of AA2014 -T6 aluminum alloy at the 95% confidence level.Keywords
Friction STIR Welding, Aluminum Alloy, Design of Experiment, Lap Joint, Tensile Strength.- Comparison between Riveted Joints and Friction STIR Welded Joints of AA2014 Aluminum Alloy
Abstract Views :172 |
PDF Views:1
Authors
Affiliations
1 Center for Materials Joining and Research, Dept of Manufacturing Engg, Annamalai University, Annamalainagar, Tamil Nadu, IN
2 Aeronautical Development Agency, Bangalore, IN
1 Center for Materials Joining and Research, Dept of Manufacturing Engg, Annamalai University, Annamalainagar, Tamil Nadu, IN
2 Aeronautical Development Agency, Bangalore, IN
Source
Manufacturing Technology Today, Vol 14, No 12 (2015), Pagination: 3-8Abstract
AA2014 aluminum alloy has been widely used in aircraft and automotive industries as structural members. Conventionally, these structures were fabricated using rivets, as it is difficult to join this alloy by fusion welding processes. Friction Stir Welding (FSW) can be successfully applied to replace the riveted construction of aluminum alloy (AA2014) in aircraft structures. Hence, an attempt has been made to evaluate and compare the load carrying capabilities of FSW joints and riveted joints of AA2014 aluminum alloy. FSW joints were fabricated using optimized process parameters, and riveted joints were fabricated using standard shop floor practice in butt and lap configurations. FSW joints exhibited 75% higher tensile and shear fracture load compared to the riveted joints.Keywords
Aluminum Alloys, Friction Stir Welding, Riveting, Butt and Lap Joint.- Wear Testing of Bronze on Steel Spherical Interface
Abstract Views :175 |
PDF Views:0
Authors
Affiliations
1 B.S. Abdur Rahman Crescent Engg. College, Anna University, Chennai, IN
2 College of Engg. Guindy, Anna University, Chennai, IN
3 IIT Madras, Chennai, IN
1 B.S. Abdur Rahman Crescent Engg. College, Anna University, Chennai, IN
2 College of Engg. Guindy, Anna University, Chennai, IN
3 IIT Madras, Chennai, IN
Source
Manufacturing Technology Today, Vol 7, No 3 (2008), Pagination: 28-34Abstract
This paper presents the results obtained and deductions made from spherical wear tests involving bronze shells against steel balls of 25 mm diameter. These tests were carried out using a specially developed spherical wear testing machine. (Indian Patent No. 198349/2003). Test runs lasting for 8150 minutes covers both the run-in and the mild wear regimes. The wear was estimated by direct mass loss method and correlated with surface profile measurements by periodic monitoring. The wear coefficient for this spherical interface was also computed. Macrographs of worn out surfaces, the variation in center-line average roughness parameter (Ra) of the shell, details of wear debris and the acoustic emission signals obtained are reported and discussed. In conclusion, this work, presents the wear characteristics of spherical contacts and attempts to standardize wear testing of spherical joints, like the standard pin-on-disc testing for planar interfaces.- Experimental Investigation of Journal Bearing Performance Under Dry Conditions
Abstract Views :156 |
PDF Views:0
Authors
V. Jayaraj
1,
K. Srinivasan
2
Affiliations
1 K.C.G. College of Technology, Chennai-96, IN
2 Anna University, Chennai-25, IN
1 K.C.G. College of Technology, Chennai-96, IN
2 Anna University, Chennai-25, IN