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Initial Evaluation of the Hitachi Zosen WR-L50 Portable Welding Robot (The National Shipbuilding Research Program).
| 题名： | Initial Evaluation of the Hitachi Zosen WR-L50 Portable Welding Robot (The National Shipbuilding Research Program). |
| 作者： | blasko, g. j. moniak, d. j. howser, b. c. |
| 关键词： | computer aided manufacturing, shipbuilding |
| 摘要： | The application of robotics provides good potential to increase welding productivity, reduce dependence on skilled labor, and improve the competitive position of U.S. shipyards. However, shipyard robotic applications have generally been limited to small part sizes and repetitive batch lots. In December 1991, a team representing U. S. private and public shipyards and the David Taylor Research Center visited three Japanese shipyards to observe the Hitachi Zosen robots in operation and complete a technical assessment. The portable welding robots are not the conventional teach-playback variety, but rather a numerically controlled (NC) system that utilizes off-line programming. The robots and their robot origin transfer (self traveling) units are compact, durable, easy to operate and are readily adaptable to high-volume, non- repetitious structural welding tasks. The robots offer excellent productivity improvement due to their potential for 50-70% arc time, high deposition rates, and ease of operation and set-up. Typically, three robots were being operated by a single operator. There are several issues that a U.S. shipyard will have to resolve to ensure a successful implementation including determining the availability of the special Nippon flux-cored weld wire in the U. S., assessing weld quality in terms of U.S. regulatory requirements, and customizing the CAM software to suit specific design details. Based on the team's observation and the overall satisfactory technical assessment, it is recommended that at least one portable welding robot with a transfer unit be purchased for further evaluation in a U.S. shipyard. / NOTE:Final rept. |
| 总页数： | u0707；53p |
| 报告类型： | 科技报告 |
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