The Study Of The Best Parameters For Shot Peening Of Landing Gear by Using Lean Six Sigma In The Aerospace Maintenance Industry
| Autor: | Wang, Chinan, 王進安 |
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| Rok vydání: | 2012 |
| Druh dokumentu: | 學位論文 ; thesis |
| Popis: | 100 The parts of aerospace maintenance are a highly professional design and manufacture with small amount of diversity. It need quality and function stability, reduce maintenance time and on-time delivery requirements. The Department of Defense requires the kinds of various military aircraft and fly repair units, carry out to follow job maintenance skills and the zero-accident rate of flight safety the primary objective, to ensure the safety of flight. This paper import lean six Sigma deviation concepts and procedures, the use lean six sigam deviation of Lean Six Sigma DMAIC (Define-Measure-Analyze-Improve-Control) to clarify the original problem and flow occurs. The poor quality aerospace landing gear after the shot peening is resolved. The execution step is as follows: 1. To list and establish the fishbone diagram of all affect the shot peening the quality factors. 2. To comply and listed the detailed characteristics diagram, to pick out the control and noise factors. 3. Identify problems by value stream maintenance operations diagram, to develop the best tools for implementation and improvement. 4. To improve the source of the problem with the Solidwork -3D amendments to the old frame structure. The Taguchi method test value closer to the field need the information. 5. Link one to four steps, to reconcile the best variation factor of processing parameters of the landing gear after shot peening and finally empirical processing. 6. To prevent result in human error poor quality or customer complaints, development of table constraints, according to data to be analyzed retrospectively for to formulate improvement strategies to improve and construction of the best parameter mode. Study found that the variations in the quality standards of saturation intensity drop from 0.003mm~0.25mm to 0.098mm ~ 0.109mm in line with the technology of specification. The expenditure of personal and management reduce approximately 93,500yuan and operating days 29.5 days and operating efficiency ahead of 36.2%.Verification operating methods to improve and enhance the quality of shot peening processing. To ensure that the implementation of the enterprise achieve the goal to quickly reduce operating cost and high quality. |
| Databáze: | Networked Digital Library of Theses & Dissertations |
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