Control of Gas Tungsten Arc Weld Pool Surface

钨极气体保护焊熔池表面的控制

• 批准号: 0114982
• 负责人: YuMing Zhang
• 金额: $ 22万
• 依托单位: University of Kentucky Research Foundation
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2001
• 资助国家: 美国
• 起止时间: 2001-10-01 至 2005-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0114982&HistoricalAwards=false
• 关键词: Control; Gas; Tungsten; Arc; Weld

The objective of this research is to improve the capability of controlling the gas tungsten arc welding process for precise joining by emulating skilled operators using intelligent automatic welding machines in order to produce quality welds consistently. To this end, a novel sensing and control system will be developed to measure and control the three-dimensional surface of the weld pool. A new technique will be used to modify the traditional gas tungsten arc welding process for better arc concentration and directionality. A numerical model will be developed to analyze the behaviors of the modified process under the varying welding parameters in order to simulate the performance of the developed control technology. The scope of work addresses basic physics, dynamic modeling, and robust control issues. The research team will closely collaborate with industrial partners and governmental scientists on both the basic research and applied issues. The investigator includes a plan to educate graduate students in both the fundamental science integration and potential for industrial applications. The investigator also plans to accept undergraduate and talented high school students, including those from under-represented groups, to work on carefully defined topics during the research. In addition to the social impact, the impact on industry should also be significant and several industrial partners are committed to case study support and equipment/engineering support for the future development of this novel technology at production level.

这项研究的目的是提高控制气钨电弧焊接过程的能力，以通过使用智能自动焊接机效仿熟练的操作员来精确连接，以始终如一地生产质量焊接。 为此，将开发一种新型的感应和控制系统，以测量和控制焊接池的三维表面。 一种新技术将用于修改传统的气钨电弧焊接过程，以提高电弧浓度和方向性。 将开发一个数值模型，以分析不同焊接参数下修改过程的行为，以模拟开发的控制技术的性能。 工作范围解决了基本物理，动态建模和鲁棒的控制问题。研究团队将在基础研究和应用问题上与工业伙伴和政府科学家密切合作。 研究人员包括一项计划，以教育研究生的基本科学融合和工业应用潜力。 调查人员还计划接受研究期间的本科生和才华横溢的高中生，包括代表性不足的团体的学生，在研究期间从事精心定义的主题。 除了社会影响外，对行业的影响还应该是重大的，几个工业伙伴都致力于案例研究支持和设备/工程支持，以在生产水平上这项新技术的未来发展。