| Author | Siahaan, Rizky Yulviano |
| Note | A thesis submitted in partial fulfillment of the requirements for the
degree of Master of Engineering in
Industrial and Manufacturing Engineering
|
| Publisher | Asian Institute of Technology |
| Abstract | Repair process of nickel-based superalloy compressor blade considered as huge challenge. For cost efficiency, industry required to turn from manual into reliable automatic repair process. Its reliability is reflected by zero discontinuity, less material and time. To do so, this work aims to study optimization of input variable such as current, welding speed, and electrode feed rate with the response Deposition rate, welding cost, and Bead height. Response Surface Central Composite design is used as the research methodology. Responses observed as welding cost and measurement of weld bead geometry. Empirical relations among responses and input variable are proved using analysis of variance and supported by response surface plot. Desirability function employed, and the optimized system is able to build 2.24 mm in average of height with cost of 10.44 Baht per blade. Verification run were then carried out from the determined optimum design. It is found 0.99 confidence level in agreement between predicted and measured values. Nondestructive Evaluation used on the optimum design. The discontinuity is found therefore the current process need to be developed. |
| Year | 2017 |
| Type | Thesis |
| School | School of Engineering and Technology (SET) |
| Department | Department of Industrial Systems Engineering (DISE) |
| Academic Program/FoS | Microelectronics (ME) |
| Chairperson(s) | Bohez, Erik L.J.;Manukid Parnickhun; |
| Examination Committee(s) | Huynh Trung Luong;Than Lin Oetelaa, Gerton Van Den; |
| Scholarship Donor(s) | Thailand (HM King); |
| Degree | Thesis (M.Eng.) -- Asian Institute of Technology, 2017 |