基于均匀设计法的钛合金清洁加工试验研究  

Experimental Study on Clean Machining of Titanium Alloy Based on Uniform Design Method

作　　者：李登万[1,2] 陈洪涛[1,2] 许明恒[1] 钟成明[3] 

机构地区：[1]西南交通大学,成都610031 [2]四川工程职业技术学院,德阳618000 [3]东方汽轮机有限公司,德阳618000

出　　处：《中国机械工程》2011年第1期15-18,共4页China Mechanical Engineering

基　　金：国家科技重大专项(2009ZX04014-102-03)

摘　　要：为了探索难加工材料钛合金的清洁切削加工规律,采用均匀设计方法设计了切削试验参数,在常温干式切削与低温冷风降温切削条件下进行切削试验研究。对试验数据进行回归分析,建立了多元二次回归模型,用最优子集法和自定变量法进行运算处理,导出了适用于钛合金精加工的切削力和表面粗糙度经验公式,方差分析结果显示其线性关系高度显著。对比分析常温干式切削和低温冷风降温切削下的切削力、表面粗糙度与切削参数之间的特征关系,发现低温冷风降温切削适用于钛合金高效精密加工,同时提出了钛合金精加工切削参数选用的基本原则。In order to explore the clean machining rule of titanium alloy,cutting parameters for tests were schemed out by using the uniform design method.And cutting tests were conducted under the condition of dry cutting and cold blast machining respectively.Through the regression analysis about the test results,a multiple quadratic regression model was established.And an empirical formula of cutting force and surface roughness was derived through the optimal subset method and custom variable method towards the model,which was applicable for titanium alloy finishing machining.The variance analysis about the formula shows that it is of remarkable linear relationship.Comparing and analyzing the characteristic relation among the cutting force,surface roughness and the cutting parameters under the conditions of dry cutting and cold blast machining,and it shows the latter one is more applicable for efficient finishing machining of titanium alloy.A cardinal principle for the selection of cutting parameters for titanium alloy finishing machining was also put forward.

关 键 词：钛合金 清洁加工 经验公式 均匀设计 

分 类 号：TG506.3[金属学及工艺—金属切削加工及机床]