SBIR Phase II: A Novel Electrochemical Machining Process for Final Surface Finishing of Hard Passive Alloys

SBIR 第二阶段：一种用于硬质钝化合金最终表面精加工的新型电化学加工工艺

• 批准号: 9901819
• 负责人: E. Jennings Taylor
• 金额: $ 39.99万
• 依托单位: FARADAY TECHNOLOGY, INC
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1999
• 资助国家: 美国
• 起止时间: 1999-07-15 至 2003-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9901819&HistoricalAwards=false
• 关键词: SBIR; Phase; II; Novel; Electrochemical

This Small Business Innovation Research (SBIR) Phase II project will develop an electrochemical machining process for final surface finishing of hard passive alloys. Machining of hard passive alloys by traditional methods results in either a mechanically or thermally damaged surface layer. This damage adversely affects the properties of the part and must be removed manually, a major rate limiting step, requiring greater than 25% of total production time . The novel modulated reverse electric field electrochemical machining process (MREF-ECM) avoids the considerable tangible and intangible costs associated with the current finishing process and utilizes benign electrolytes. Phase I demonstrated the technical and economical feasibility using surface damaged INCONEL coupons. Phase II work will validate the MREF-ECM process using INCONEL and MONEL parts provided by an industrial partner. Tooling, fixtures, and a three-axis ECM machine will be fabricated, and the technical and economic benefits of the MREF-ECM process will be validated. In the manufacturing setting, electrolyte disposal and worker exposure issues will be eliminated. The process is applicable to parts finishing in the aerospace, automotive, tool and die, medical implements, and hot forging industries.

这个小企业创新研究（SBIR）二期项目将开发一种电化学加工工艺，用于硬被动合金的最终表面精加工。用传统方法加工硬质钝化合金会造成表面层的机械或热损伤。这种损坏会对零件的性能产生不利影响，必须手动清除，这是一个主要的限速步骤，需要超过总生产时间的25%。新型调制反电场电化学加工工艺（MREF-ECM）避免了当前精加工过程中可观的有形和无形成本，并利用了良性电解质。第一阶段演示了使用表面损坏的INCONEL压片的技术和经济可行性。第二阶段工作将使用工业合作伙伴提供的INCONEL和MONEL部件验证MREF-ECM工艺。工装、夹具和三轴ECM机床将被制造，并验证MREF-ECM工艺的技术和经济效益。在制造环境中，电解液处理和工人暴露问题将被消除。该工艺适用于航空航天、汽车、模具、医疗器械、热锻等行业的零件精加工。