Development of a sensor-less methodology for monitoring quality of spot welding in real time
Resistance spot welding is widely used for joining metal sheet. Although many attempts have been made to perform the quality assurance, none of the methods available today can provide a satisfactory quality monitoring capability for spot welding without significantly sacrificing productivity of this...
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| Format: | Thesis |
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2008
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| Online Access: | http://hdl.handle.net/10356/5370 |
| _version_ | 1811682015995494400 |
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| author | Wan, Li Xue |
| author2 | Ling, Shih Fu |
| author_facet | Ling, Shih Fu Wan, Li Xue |
| author_sort | Wan, Li Xue |
| collection | NTU |
| description | Resistance spot welding is widely used for joining metal sheet. Although many attempts have been made to perform the quality assurance, none of the methods available today can provide a satisfactory quality monitoring capability for spot welding without significantly sacrificing productivity of this widely used joining process. This report presents a new method to monitor and diagnose a resistance welding process through measuring the variation of the input electrical impedance (Zin) of a welding system. The Zin is obtained by digitally processing the measured input voltage and current of a welding system. |
| first_indexed | 2024-10-01T03:50:08Z |
| format | Thesis |
| id | ntu-10356/5370 |
| institution | Nanyang Technological University |
| last_indexed | 2024-10-01T03:50:08Z |
| publishDate | 2008 |
| record_format | dspace |
| spelling | ntu-10356/53702023-03-11T16:57:28Z Development of a sensor-less methodology for monitoring quality of spot welding in real time Wan, Li Xue Ling, Shih Fu School of Mechanical and Production Engineering DRNTU::Engineering::Manufacturing::Quality control Resistance spot welding is widely used for joining metal sheet. Although many attempts have been made to perform the quality assurance, none of the methods available today can provide a satisfactory quality monitoring capability for spot welding without significantly sacrificing productivity of this widely used joining process. This report presents a new method to monitor and diagnose a resistance welding process through measuring the variation of the input electrical impedance (Zin) of a welding system. The Zin is obtained by digitally processing the measured input voltage and current of a welding system. Master of Engineering (MPE) 2008-09-17T10:49:02Z 2008-09-17T10:49:02Z 2000 2000 Thesis http://hdl.handle.net/10356/5370 Nanyang Technological University application/pdf |
| spellingShingle | DRNTU::Engineering::Manufacturing::Quality control Wan, Li Xue Development of a sensor-less methodology for monitoring quality of spot welding in real time |
| title | Development of a sensor-less methodology for monitoring quality of spot welding in real time |
| title_full | Development of a sensor-less methodology for monitoring quality of spot welding in real time |
| title_fullStr | Development of a sensor-less methodology for monitoring quality of spot welding in real time |
| title_full_unstemmed | Development of a sensor-less methodology for monitoring quality of spot welding in real time |
| title_short | Development of a sensor-less methodology for monitoring quality of spot welding in real time |
| title_sort | development of a sensor less methodology for monitoring quality of spot welding in real time |
| topic | DRNTU::Engineering::Manufacturing::Quality control |
| url | http://hdl.handle.net/10356/5370 |
| work_keys_str_mv | AT wanlixue developmentofasensorlessmethodologyformonitoringqualityofspotweldinginrealtime |