齿轮绿色高速干切滚齿工艺性能优化基础理论与实验研究

项目名称： 齿轮绿色高速干切滚齿工艺性能优化基础理论与实验研究

项目编号： No.51475058

项目类型： 面上项目

立项/批准年度： 2015

项目学科： 机械、仪表工业

项目作者： 曹华军

作者单位： 重庆大学

项目金额： 88万元

中文摘要： 绿色工艺与装备创新是机械工业实施绿色制造、节能减排战略的关键途径之一。高速干切滚齿工艺消除了滚齿加工过程中的切削油雾、废油环境污染，同时具有高能效、低成本等特点，是一种典型的绿色切削新工艺。目前国内高速干切滚齿工艺在工艺可靠性、热稳定性、滚刀寿命等方面与发达国家差距很大，根本原因在于高速干切滚齿工艺基础理论的深入研究非常匮乏。本项目将在前期高速干切滚刀及机床研制基础上，深入开展高速干切滚齿工艺基础理论和实验研究，建立高速干切滚齿工艺多刃断续空间三维成形模型，为滚齿工艺成形过程、切屑几何成形机理、工件包络波纹形貌等工艺几何分析提供工具；揭示高速干切滚齿工艺切削热产生、传递机理，为切屑载热量优化及切削区温升控制提供理论基础；阐明高速干切条件下滚刀切削刃损伤行为和失效机理，为滚刀寿命延长和工艺稳定性增强提供理论基础；通过工艺性能实验，建立滚刀经济使用寿命经验公式，为高速干切工艺参数优化提供支持。

中文关键词： 绿色制造；齿轮滚切；干切削；工艺性能；热传递

英文摘要： The innovation of green process and equipment is one of the key solutions for mechanical industry to implement the strategy of green manufacturing and energy saving & emission reduction. As a typical green metal removal technology, high speed dry hobbing process is high-effeciency and low-cost while eliminates the pollution of oil mist in shop floor and environment contamintation caused by waste cutting oil.At present, comparing the domestic technology of high speed dry hobbing process with that of developed countries there being a huge gap on process reliability, thermal stability and life of hobs. The short of indepth research on basic theories of high speed dry hobbing process is the primary reason.Based on the previously developed high speed dry hobbing machine and hobs, the basic theories and experiment researches will be put into effect in this project.The following aspects will be included: 1) 3D shaping model of interupted cutting process by multi-cutting-edge will be established. In this research a tool for analysing the shaping process of gear hobbing and the geometircal figuration mechanisim of chips as well as enveloping corrugation of tooth flank on workpiece will be provided. 2) The mechanisim of cutting heat generation and thermal transmission in high speed dry hobbing process will be revealed in order to optimally control temperature rise in cutting zoon. 3) The damage behavior and failure mechanisim of cutting edge of hob under high speed dry cutting condition will be illuminated, which would provide theoretical basis for extending hob's life and enhancing processing stability. 4) Experiment equation about the economic life of hob will be established based on perfomance test. The outcome of this project will support parameter optimize for high speed dry hobbig process.

英文关键词： green manufacturing;green cutting;dry cutting;processing properties;Thermal transmission