| 000 -LEADER |
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| fixed length control field |
02452nam a22001577a 4500 |
| 082 ## - DEWEY DECIMAL CLASSIFICATION NUMBER |
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| Classification number |
621 |
| 100 ## - MAIN ENTRY--PERSONAL NAME |
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| Personal name |
Khan, Muhammad Ammar |
| 245 ## - TITLE STATEMENT |
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| Title |
Effect of Process Parameters and Filler Materials on Mechanical Properties of TIG Welded Aluminum Alloys / |
| Statement of responsibility, etc. |
Muhammad Ammar Khan |
| 264 ## - PRODUCTION, PUBLICATION, DISTRIBUTION, MANUFACTURE, AND COPYRIGHT NOTICE |
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| Place of production, publication, distribution, manufacture |
Islamabad : |
| Name of producer, publisher, distributor, manufacturer |
SMME- NUST; |
| Date of production, publication, distribution, manufacture, or copyright notice |
2025. |
| 300 ## - PHYSICAL DESCRIPTION |
|---|
| Extent |
132p. |
| Other physical details |
Soft Copy |
| Dimensions |
30cm |
| 500 ## - GENERAL NOTE |
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| General note |
TIG welding has wide area of application in various industries like automobile, aerospace and<br/>marine, etc. In TIG welding, welding parameters and filler materials play a vital role in creating a<br/>strong welded joint. This research work was focused on investigation of effect of process<br/>parameters and filler materials on TIG welding of AA 5052-T0 and AA 7075-T0. In the present<br/>study, three TIG welding parameters, current, gas flow rate and filler rod diameter were changed<br/>up to three levels and their effects on tensile strength, flexural strength (face/root), micro-hardness,<br/>and microstructure were investigated. Two different filler materials, ER 4043 and ER 5356 were<br/>utilized in this study. Experiments were conducted on a 1.5 mm thick sheet of AA 5052 and AA<br/>7075 and were designed according to Taguchi method. Moreover, for optimization techniques like<br/>S/N ratio, ANOVA analysis and regression analysis were also utilized. For ER 4043 samples,<br/>maximum tensile strength, flexural strength (face), flexural strength (root) and micro-hardness<br/>obtained were 193.2 MPa, 382.3 MPa, 271 MPa and 77.1 HV respectively. Similarly, for ER 5356<br/>sample maximum tensile strength, flexural strength (face), flexural strength (root) and microhardness obtained were 196.4 MPa, 481.9 MPa, 187 MPa and 88.6 HV respectively. It was found<br/>that current was the most influential parameter followed by filler rod diameter. ER 5356 showed<br/>better mechanical properties but it was more prone to hot cracking. Optimized responses were<br/>obtained at current 70A, gas flow rate 11 L/min and filler rod diameter 1.6 mm with ER 5356 filler<br/>rod diameter. Model confirmatory test showed less than 5% error between predicted and<br/>experimental values. Microstructural analysis also showed presence of intermetallic compounds<br/>like Al-Si, Mg2Si and Al3Mg2 in welded samples of ER 4043 and ER 5356. |
| 650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name entry element |
MS Mechanical Engineering |
| 700 ## - ADDED ENTRY--PERSONAL NAME |
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| Personal name |
Supervisor : Dr. Sadaqat Ali |
| 856 ## - ELECTRONIC LOCATION AND ACCESS |
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| Uniform Resource Identifier |
<a href="http://10.250.8.41:8080/xmlui/handle/123456789/54239">http://10.250.8.41:8080/xmlui/handle/123456789/54239</a> |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) |
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| Source of classification or shelving scheme |
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| Koha item type |
Thesis |
