CAREER: A Fundamental Study on Hard Turning - Prediction and Synthesis of Surface Integrity and Component Life

职业生涯：硬车削的基础研究 - 表面完整性和零件寿命的预测和综合

• 批准号: 0447452
• 负责人: Yuebin Guo
• 金额: --
• 依托单位: University of Alabama Tuscaloosa
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2005
• 资助国家: 美国
• 起止时间: 2005-02-01 至 2011-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0447452&HistoricalAwards=false
• 关键词: CAREER; Fundamental; Study; Hard; Turning

This Faculty Early Career Development (CAREER) Program award supports fundamental research on hard turning. The research objective of this CAREER award is to predict and synthesize surface integrity and component life by hard turning. The specific research approaches are: (a) create and verify meso/micro-scale finite element analysis models of hard turning to predict surface integrity through accurate modeling of dynamic mechanical behavior with loading history effects, materials damage, and microstructure effects of work materials and (b) identify the individual and compound effects of residual stress profile and white layer on fatigue life in rolling contact using novel experimental and simulation approaches. The education objective is to integrate the research results into education activities across academic disciplines and career paths in manufacturing engineering. The specific approach includes curriculum development and collaborative learning; a hard turning academy; outreach to local historically black colleges and universities, high schoolers, and professional societies; collaborations with industrial practitioners, leading academic groups, and national labs; and various assessment tools and broad dissemination.If successful, this CAREER plan will enable machining industry to make high quality bearings, gears, cams, shafts, pinions, dies, molds, tools, and other parts at high efficiency, flexibility and low cost, while lessening the environmental impact. This will result in cheaper and superior fatigue performance of machined components used in rolling contact, thereby benefiting the economy and society. The established hard turning paradigm can be an example for other manufacturing processes. The research accomplishments will significantly advance research and manufacturing capabilities of the hard turning consortium at The University of Alabama to stimulate economic growth in Alabama through high-impact research and creating well-trained manufacturing workforce. The educational initiatives will also facilitate students' learning processes and continuing education; broaden participation of underrepresented students in research; and transfer new research findings to a broad audience.

该教师早期职业发展（CAREER）计划奖项支持硬车削的基础研究。该职业奖的研究目标是通过硬车削来预测和综合表面完整性和部件寿命。具体的研究方法是：（a）创建并验证硬车削的细观/微观有限元分析模型，通过对动态机械行为与载荷历史效应、材料损伤和工作材料的微观结构效应进行精确建模来预测表面完整性；（b）使用新颖的实验和模拟方法确定残余应力分布和白层对滚动接触疲劳寿命的单独和复合影响。教育目标是将研究成果融入制造工程跨学科和职业道路的教育活动中。具体途径包括课程开发和协作学习；一所艰难的学院；向当地历史悠久的黑人学院和大学、高中生和专业协会进行宣传；与工业从业者、领先学术团体和国家实验室的合作；如果成功，该职业计划将使机械加工行业能够以高效率、灵活性和低成本制造高质量的轴承、齿轮、凸轮、轴、小齿轮、冲模、模具、工具和其他零件，同时减少对环境的影响。这将使用于滚动接触的机加工部件变得更便宜且具有优异的疲劳性能，从而有利于经济和社会。已建立的硬车削范例可以作为其他制造工艺的示例。这些研究成果将显着提高阿拉巴马大学硬车削联盟的研究和制造能力，通过高影响力的研究和培养训练有素的制造劳动力来刺激阿拉巴马州的经济增长。教育举措还将促进学生的学习过程和继续教育；扩大代表性不足的学生对研究的参与；并将新的研究成果传播给广大受众。