组合机床与自动化加工技术
組閤機床與自動化加工技術
조합궤상여자동화가공기술
MODULAR MACHINE TOOL & AUTOMATIC MANUFACTURING TECHNIQUE
2014年
10期
131-134
,共4页
正交试验%铣削力%TC21%多元线性回归
正交試驗%鐉削力%TC21%多元線性迴歸
정교시험%선삭력%TC21%다원선성회귀
orthogonal experiment%milling force%TC21%multivariable linear regression
TC21是我国自行研制的第一个具有独立自主知识产权的高强高韧损伤容限型钛合金，广泛地使用在航空航天等领域。切削力试验研究是钛合金TC21加工机理研究的重要内容，通过正交试验和采用多元线性回归分析建立了TC21侧铣的铣削力预测模型，统计检验结果表明，所建立的铣削力预测模型呈高度显著检验状态，具有很高的可信度。同时，分析了铣刀在切入切出工件时的切削力波动现象，说明了各切削参数对切削力的影响程度，解释了TC21铣削力较大的原因。
TC21是我國自行研製的第一箇具有獨立自主知識產權的高彊高韌損傷容限型鈦閤金，廣汎地使用在航空航天等領域。切削力試驗研究是鈦閤金TC21加工機理研究的重要內容，通過正交試驗和採用多元線性迴歸分析建立瞭TC21側鐉的鐉削力預測模型，統計檢驗結果錶明，所建立的鐉削力預測模型呈高度顯著檢驗狀態，具有很高的可信度。同時，分析瞭鐉刀在切入切齣工件時的切削力波動現象，說明瞭各切削參數對切削力的影響程度，解釋瞭TC21鐉削力較大的原因。
TC21시아국자행연제적제일개구유독립자주지식산권적고강고인손상용한형태합금，엄범지사용재항공항천등영역。절삭력시험연구시태합금TC21가공궤리연구적중요내용，통과정교시험화채용다원선성회귀분석건립료TC21측선적선삭력예측모형，통계검험결과표명，소건립적선삭력예측모형정고도현저검험상태，구유흔고적가신도。동시，분석료선도재절입절출공건시적절삭력파동현상，설명료각절삭삼수대절삭력적영향정도，해석료TC21선삭력교대적원인。
TC21 is a first high strength and damage-tolerant titanium alloy self-developed in China, which has independent intellectual property. As it is known to all, titanium alloy TC21 is widely used in aviation and aerospace fields. The experimental study of cutting force is a important content of machining mechanism about TC21. In this paper, the orthogonal experiment were carried out to study. Firstly, the predictive mod-el of milling force in milling TC21 was built by analysis of multivariable linear regression on the basis of ex-periment. Secondly, statistical test results indicated the established predictive model were in highly notable test status and had high reliability. Finally, the fluctuation of milling force is analyzed, the extent of milling force impact of the machining parameters is illustrated, and the greater milling force of TC21 is explained.
