SBIR Phase I: Chatter Avoidance Software for High Speed Milling

SBIR 第一阶段：用于高速铣削的颤振避免软件

• 批准号: 9861180
• 负责人: Donald Esterling
• 金额: $ 10万
• 依托单位: VulcanCraft
• 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: 1999-01-01 至 1999-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9861180&HistoricalAwards=false
• 关键词: SBIR; Phase; Chatter; Avoidance; Software

9861180 This Small Business Innovation Research (SBIR) Phase I project will explore an application of complex chatter theory to operator control of high-speed machining processes. The approach will be numerical control (NC) program verification software that alerts machinists to vibration problems that might occur using the speeds and feeds they have selected and to recommend alternate, optimized speeds. Phase I will: [1] Evaluate and bound the errors of existing chatter theory in the context of a "tool tuning" methodology for high-speed milling; [2] Confirm theoretical results at a state-of-the-art high-speed milling facility by measuring and characterizing vibrations accurately; and [3] Consolidate these results within an NC program verification software package that provides (a) recommended optimal spindle speeds, based on the theoretical stability lobes predicted for an associated tool, (b) a simple means to convey to a machinist where on the part and in the part program serious chatter is likely to arise, and (c) a means for users to amend parameters based on experience . High-speed mill operators are not likely realizing the full advantage of their mill performance capabilities, relying instead on conservative shop practice, which is based on conventional mills and a chatter avoidance strategy. This software is expected to guide shop floor personnel through an optimal chatter-free speed and feed selection process, and though based on complex theory, it will use terms familiar to them.

9861180 这个小型企业创新研究 (SBIR) 第一阶段项目将探索复杂颤振理论在高速加工过程操作员控制中的应用。 该方法将是数控（NC）程序验证软件，该软件可以提醒机械师使用他们选择的速度和进给可能出现的振动问题，并推荐替代的优化速度。 第一阶段将： [1] 在高速铣削的“刀具调整”方法的背景下评估和限制现有颤振理论的错误； [2] 通过准确测量和表征振动，在最先进的高速铣削设备上确认理论结果； [3] 将这些结果整合到 NC 程序验证软件包中，该软件包提供 (a) 根据相关刀具预测的理论稳定性波瓣推荐的最佳主轴速度，(b) 向机械师传达零件和零件程序中可能出现严重颤振的简单方法，以及 (c) 用户根据经验修改参数的方法。 高速轧机操作员不太可能充分发挥其轧机性能能力，而是依赖基于传统轧机和避免颤振策略的保守车间实践。 该软件预计将指导车间人员完成最佳的无颤动速度和进给选择过程，尽管基于复杂的理论，但它将使用他们熟悉的术语。