PREMISE: Machining Performance Evaluation in Near-Dry Machining of Aluminum Alloys

前提：铝合金近干式加工的加工性能评估

• 批准号: 0225918
• 负责人: Ibrahim Jawahir
• 金额: $ 10万
• 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: 2002
• 资助国家: 美国
• 起止时间: 2002-10-01 至 2004-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0225918&HistoricalAwards=false
• 关键词: PREMISE; Machining; Performance; Evaluation; Near

This Production Realization and Environment Manufacturing Innovative Systems (PREMISE) project is aimed at establishing the major effects of spray cooling under a wide range of cutting conditions, tool geometry and three major aluminum work materials (356, 380 and 390) in most commonly known automotive machining operations covering turning, milling, and drilling. The effects of influencing parameters such as the fluid (and mist) flow rate, air pressure, direction of spray (and the nozzle position), type and composition of fluid, etc., are to be studied and compared for machining performance measures such as tool-wear/tool-life, cutting forces, chip-forms/chip breakability, surface roughness, etc. A sensitivity analysis will be made in order to identify the major influencing parameters and relevant empirical relationships will be derived for practical applications. At the end, a full range of validation is proposed. The project will be conducted in four overlapping phases in twelve months. The findings of this project will validate and establish the feasibility of using spray cooling to replace conventional flood cooling in specific applications, thus avoiding the disadvantages such as extremely harmful environmental pollution, negative influence on personnel health, increased production costs and poor energy efficiency, etc., prevalent in flood cooling. The machining performance will not be compromised in spray cooling applications. The identification of the primary influencing parameters in spray cooling is important for machining process planning. The experimental data generated and the relevant empirical relationships established from this project will also serve as the basis for developing analytical models for use in the optimization of machining processes.

该生产实现和环境制造创新系统 (PREMISE) 项目旨在确定喷雾冷却在各种切削条件、刀具几何形状和三种主要铝工件材料（356、380 和 390）下，在最常见的汽车加工操作（包括车削、铣削和钻孔）中的主要影响。研究和比较流体（和雾）流量、气压、喷射方向（和喷嘴位置）、流体类型和成分等影响参数对刀具磨损/刀具寿命、切削力、切屑形态/切屑易碎性、表面粗糙度等加工性能指标的影响。进行敏感性分析，以确定主要影响参数，并导出相关经验关系式 用于实际应用。最后，提出了全方位的验证。该项目将在十二个月内分四个重叠阶段进行。该项目的研究结果将验证和确立在特定应用中使用喷雾冷却替代传统淹没冷却的可行性，从而避免淹没冷却普遍存在的极其有害的环境污染、对人员健康的负面影响、生产成本增加和能源效率低等缺点。在喷雾冷却应用中，加工性能不会受到影响。确定喷雾冷却的主要影响参数对于加工工艺规划非常重要。 该项目生成的实验数据和建立的相关经验关系也将作为开发用于优化加工过程的分析模型的基础。