Phase II IUCRC at Colorado School of Mines: Center for Manufacturing & Materials Joining Innovation Center (Ma2JIC)

科罗拉多矿业学院 IUCRC 第二阶段：制造中心

• 批准号: 1822201
• 负责人: Zhenzhen Yu
• 金额: $ 20万
• 依托单位: Colorado School of Mines
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2018
• 资助国家: 美国
• 起止时间: 2018-08-15 至 2023-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1822201&HistoricalAwards=false
• 关键词: Phase; II; IUCRC; Colorado; Mines

The Manufacturing and Materials Joining Innovation Center (Ma2JIC) addresses the question of infrastructure rebuilding and innovative materials application in modern manufacturing which are of national interest. The Ma2JIC Center establishes an environment between universities and industrial partners that promotes the development and application of fundamental knowledge in the areas of materials joining and additive manufacturing and provides a platform for the education of the next generation of scientists and engineers. As one of the sites since its inception, the Colorado School of Mines (CSM) Site has complemented the Center with its unique expertise and laboratory facilities in the design and manufacturing of innovative welding materials, welding and joining process innovation, welding materials characterization, and additive manufacturing for the energy, aerospace, oil and gas, and manufacturing industries. The CSM Site will seek to intensify its collaborations with the other Center Sites to jointly develop collaborations with the welding, joining and manufacturing industries, large and small, national laboratories and government agencies. The strength of the Center is the ability of the group to close the gap between materials development and weldability for materials used in the manufacturing industry, with ultimate societal gain from all these amazing synergies.The Ma2JIC Center research thrusts of Process Innovation, Materials Performance, Additive Manufacturing, Weldability Testing and Evaluation will develop fundamental understanding as described by the materials tetrahedron - "Processing-Microstructure-Properties-Performance". CSM Site researchers are examining the fundamental aspects of GTA and Laser weldability of Laser-Powder bed fusion AM built products, solidification behavior of Laser-Powder bed fusion and Directed Energy Deposition AM products, and filler metal development for microstructural optimization in Electron Beam Freeform Fabrication products, including metal matrix composites. The incorporation of Reaction Synthesis powder into tubular wires for both laser-based and electron beam-based additive manufacturing is being attempted. The effect of surface tension on AM deposits will be fully characterized and understood for process control. Another research focus addresses the design and manufacture of thermal spray coatings with enhanced wear and fracture resistance for oil and gas drilling operations. The CSM Site will continue to study and design low transformation temperature welding (LTTW) consumables for distortion control and residual stress mitigation control. These programs are expected to lead to the development of fundamental knowledge as well as practical technology. The CSM Site is also pursuing cross university and multi-industry collaboration on intelligent welding, friction stir processing, robotics, advanced neutron and X-rays characterization, and data-driven modeling.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

制造与材料对接创新中心（Ma2JIC）致力于解决国家关心的现代制造业基础设施改造和创新材料应用问题。Ma2JIC中心在大学和工业合作伙伴之间建立了一个环境，促进了材料连接和增材制造领域基础知识的开发和应用，并为下一代科学家和工程师的教育提供了一个平台。自成立以来，科罗拉多矿业学院（CSM）以其独特的专业知识和实验室设施补充了该中心，包括创新焊接材料的设计和制造、焊接和连接工艺创新、焊接材料表征以及能源、航空航天、石油和天然气以及制造业的增材制造。CSM站点将寻求加强与其他中心站点的合作，共同发展与焊接，连接和制造业，大小，国家实验室和政府机构的合作。该中心的优势在于，该集团有能力缩小材料开发与制造业中使用的材料可焊接性之间的差距，并从所有这些惊人的协同效应中获得最终的社会效益。Ma2JIC中心的研究重点是工艺创新、材料性能、增材制造、可焊性测试和评估，将发展对材料四面体“加工-微观结构-性能-性能”的基本理解。CSM网站的研究人员正在研究激光粉末床熔合增材制造产品的GTA和激光可焊性的基本方面，激光粉末床熔合和定向能沉积增材制造产品的凝固行为，以及用于电子束自由成形制造产品（包括金属基复合材料）微结构优化的填充金属开发。目前正在尝试将反应合成粉末结合到管状导线中，用于基于激光和电子束的增材制造。表面张力对AM沉积的影响将被充分表征和理解，以用于过程控制。另一个研究重点是为油气钻井作业设计和制造具有增强耐磨性和抗破裂性的热喷涂涂层。CSM站点将继续研究和设计用于变形控制和残余应力缓解控制的低温焊接（LTTW）耗材。这些项目旨在促进基础知识和实用技术的发展。CSM站点还在智能焊接、搅拌摩擦加工、机器人技术、先进中子和x射线表征以及数据驱动建模方面寻求跨大学和多行业合作。该奖项反映了美国国家科学基金会的法定使命，并通过使用基金会的知识价值和更广泛的影响审查标准进行评估，被认为值得支持。

项目成果

Oxygen Effects on Solidification Behavior of Gas Tungsten Arc–Welded Laser Powder Bed Fusion–Fabricated 304L Stainless Steel

氧对钨极气体保护弧焊凝固行为的影响——激光粉末床熔合——制造304L不锈钢

• DOI: 10.1520/mpc20180115
• 发表时间: 2019
• 期刊: Materials Performance and Characterization
• 影响因子: 1.1
• 作者: Gonzales, Devon S.;Liu, Stephen;Javernick, Daniel;Pacheco, Robin;Brand, Michael;Johnson, Matthew;Tung, David
• 通讯作者: Tung, David

Developments in Metal Additive Manufacturing

金属增材制造的发展

• 发表时间: 2020
• 期刊: Welding journal
• 影响因子: 2.2
• 作者: Hawk, C.;Sullivan, E.;Yu, Z.;Liu, S.
• 通讯作者: Liu, S.

Control of Weld Residual Stress in a Thin Steel Plate through Low Transformation Temperature Welding Consumables

通过低转变温度焊接材料控制薄钢板焊接残余应力

• DOI: 10.29391/2020.99.012
• 发表时间: 2020
• 期刊: Welding Journal
• 影响因子: 2.2
• 作者: WU, XIN;WANG, ZHIFEN;YU, ZHENZHEN;LIU, STEPHEN;BUNN, JEFFREY R.;KOLBUS, LINDSAY;FENG, ZHILI
• 通讯作者: FENG, ZHILI