| 000 -LEADER |
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| fixed length control field |
02487nam a22001577a 4500 |
| 082 ## - DEWEY DECIMAL CLASSIFICATION NUMBER |
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| Classification number |
670 |
| 100 ## - MAIN ENTRY--PERSONAL NAME |
|---|
| Personal name |
Haidary, Yadullah |
| 245 ## - TITLE STATEMENT |
|---|
| Title |
Laser-based Ultrasonic Assisted Low Speed Micro Milling of Super Alloys / |
| Statement of responsibility, etc. |
Yadullah Haidary |
| 264 ## - PRODUCTION, PUBLICATION, DISTRIBUTION, MANUFACTURE, AND COPYRIGHT NOTICE |
|---|
| Place of production, publication, distribution, manufacture |
Islamabad : |
| Name of producer, publisher, distributor, manufacturer |
SMME- NUST; |
| Date of production, publication, distribution, manufacture, or copyright notice |
2023. |
| 300 ## - PHYSICAL DESCRIPTION |
|---|
| Extent |
65p. |
| Other physical details |
Soft Copy |
| Dimensions |
30cm |
| 520 ## - SUMMARY, ETC. |
|---|
| Summary, etc. |
Inconel-718 is a nickel-based super alloy with exceptional mechanical properties; including<br/>high yield, creep-rupture, and high tensile strength at temperatures up to 977 K. Along with its<br/>frequent uses in high temperature fasteners and bolts, and high-speed aircrafts’ parts such as<br/>spacers, wheels, buckets, and engines, Inconel-718 have also its applications in automotive,<br/>submarine and biomedical industries. Although this nickel-based alloy is an ideal material for<br/>high temperature and high corrosive environment, it is difficult to handle while machining it.<br/>To improve the machinability of the alloy as compared to the conventional micro milling, an<br/>experimental setup has been designed using laser-based ultrasonic assisted low speed micro<br/>milling (LLUMM). This study focuses on low-speed ultrasonic milling of laser-cut constantdepth slots which are created on a workpiece of Inconel-718 using Laser Marking Machine.<br/>Effects of cutting parameters including cutting speed, feed rate, depth of cut, amplitude of tool<br/>vibration and tool coating surface roughness, tool wear and burr formation are investigated,<br/>using each factor at four different levels. Cutting tool’s diameter is kept fixed at 0.5mm with<br/>uncoated and coated materials, including TiAlN, TiSiN, and nACo. A Design of Experiment<br/>technique, namely Taguchi L16 array, is used to create experiments. Experimental data is<br/>statistically analysed to identify the best and worst set of parameters for achieving the desired<br/>results. Optimization of individual response variables is carried out using signal to noise ratios,<br/>with the help of Minitab-21, while multi-objective optimization uses Weighted Grey Relational<br/>Grades (W-GRG) in which Grey Relational Analysis is coupled with Principal Component<br/>Analysis (GRA-PCA). It has been revealed by validation experiments that LLUMM produces<br/>better results as compared to traditional micro milling. |
| 690 ## - LOCAL SUBJECT ADDED ENTRY--TOPICAL TERM (OCLC, RLIN) |
|---|
| Topical term or geographic name as entry element |
MS Design and Manufacturing Engineering |
| 700 ## - ADDED ENTRY--PERSONAL NAME |
|---|
| Personal name |
Supervisor : Dr. Syed Hussain Imran Jaffery |
| 856 ## - ELECTRONIC LOCATION AND ACCESS |
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| Uniform Resource Identifier |
<a href="http://10.250.8.41:8080/xmlui/handle/123456789/37745">http://10.250.8.41:8080/xmlui/handle/123456789/37745</a> |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) |
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| Source of classification or shelving scheme |
|
| Koha item type |
Thesis |
