楊樹(shù)財(cái)+周永志+張玉華+佟欣+劉偉偉
摘 要:為了研究微織構(gòu)球頭銑刀銑削鈦合金加工表面的表面粗糙度,采用正交試驗(yàn)法,進(jìn)行了微織構(gòu)球頭銑刀銑削鈦合金的試驗(yàn),得出了微坑織構(gòu)參數(shù)與表面粗糙度之間的變化規(guī)律并分析了影響機(jī)理。利用極差分析法確定了各因素對(duì)表面粗糙度影響的主次順序。通過(guò)回歸分析原理,建立了表面粗糙度預(yù)測(cè)模型。統(tǒng)計(jì)檢驗(yàn)結(jié)果表明,所建立的表面粗糙度預(yù)測(cè)模型是顯著的。并對(duì)表面粗糙度的預(yù)測(cè)值與試驗(yàn)觀測(cè)值進(jìn)行了對(duì)比,證實(shí)了模型的可靠性。
關(guān)鍵詞:微織構(gòu);正交試驗(yàn)法;表面粗糙度;預(yù)測(cè)模型
DOI:10.15938/j.jhust.2017.03.026
中圖分類(lèi)號(hào): TG506
文獻(xiàn)標(biāo)志碼: A
文章編號(hào): 1007-2683(2017)03-0141-06
Abstract:In order to study the surface roughness of titanium alloy by microtextured ballnosed end mill within milling, based on orthogonal test, the experiment of milling titanium alloy with microtextured ball end milling cutter was carried out. The variation regularity between the texture parameters and the surface roughness was obtained and the mechanism was analyzed. The influence of various factors on the surface roughness is determined by the range analysis method. Based on the principle of regression analysis, the predictive model of surface roughness was established. The statistical test results show that the prediction model of surface roughness is significant. The predicted values of the surface roughness were compared with the experimental observations, which confirmed the reliability of the model.
Keywords:microtexture; orthogonal test; surface roughness; predictive model
5 結(jié) 論
本文通過(guò)微織構(gòu)球頭銑刀銑削鈦合金表面粗糙度試驗(yàn)研究,得出如下結(jié)論:
(1)球頭銑刀前刀面置入微坑織構(gòu)對(duì)已加工表面粗糙度具有顯著影響。通過(guò)正交試驗(yàn)的極差分析結(jié)果表明,微坑織構(gòu)參數(shù)對(duì)表面粗糙度影響大小的主次順序?yàn)椋褐睆?gt;間距>深度>距切削刃距離。
(2)通過(guò)微織構(gòu)球頭銑刀銑削鈦合金試驗(yàn)研究,結(jié)果發(fā)現(xiàn)微坑織構(gòu)具有儲(chǔ)存細(xì)小切屑、磨粒以及其它雜質(zhì)等作用,微織構(gòu)的置入在一定程度上改變了切屑流動(dòng)方向,使已加工表面粘結(jié)現(xiàn)象明顯改善。從而減少雜質(zhì)對(duì)已加工表面的耕犁,有助于改善工件表面質(zhì)量。
(3)采用正交試驗(yàn)法并對(duì)其結(jié)果進(jìn)行回歸分析,建立了表面粗糙度預(yù)測(cè)模型。統(tǒng)計(jì)檢驗(yàn)結(jié)果表明,所建立的表面粗糙度預(yù)測(cè)模型呈較高顯著檢驗(yàn)狀態(tài)。通過(guò)試驗(yàn)觀測(cè)值與預(yù)測(cè)值的對(duì)比分析,證實(shí)了模型的可靠性。
參 考 文 獻(xiàn):
[1] ZHANG C, GUO S, ZHANG H, Zhou L (2013) Modeling and Predicting for Surface Topography Considering Tool Wear in Milling Process. Int J Adv Manuf Technol 68(9-12):2849-2860.
[2] ZOU B, ZHOU H, HUANG C, et al. Wang J (2015) Tool Damage and Machinedsurface Quality Using Hotpressed Sintering Ti (C7N3)/WC/TaC Cermet Cutting Inserts for Highspeed Turning Stainless Steels. Int J Adv Manuf Technol 79(1-4):197-210.
[3] PETROPOULOS GP, PANDAZARAS CN. Davim JP (2010) Surface Texture Characterization and Evaluation Related to Machining. In: Davim JP (ed) Surface Integrity in Machining. Springer, London, pp 37-66.
[4] EZUGWU EO, WANG ZM (1997) Titanium Alloys and Their Machinability—a Review. J Mater Process Technol 68:262-274.
[5] 楊振朝, 張定華, 姚倡鋒,等. TC4鈦合金高速銑削參數(shù)對(duì)表面完整性影響研究[J]. 西北工業(yè)大學(xué)學(xué)報(bào), 2009, 27(4).
[6] 戚寶運(yùn).基于表面微織構(gòu)刀具的鈦合金綠色切削冷卻潤(rùn)滑技術(shù)研究.南京航空航天大學(xué)博士論文,2011:12-14.
[7] WU Y, ZITELLI J P, TENHUISEN K S, et al. Differential Response of Staphylococci and Osteoblasts to Varying Titanium Surface Roughness.[J]. Biomaterials, 2011, 32(4):951-60.
[8] AMIN AKMN, ISMAILl A F, KHAIRUSSHIMA M K N. Effectiveness of Uncoated WCCo and PCD Inserts iin End Milling of Titanium Alloy—Ti6Al4V[J]. Journal of Materials Processing Technology, 2007, s 192193(5):147-158.
[9] 杜隨更,呂超,任軍學(xué),等.鈦合金TC4高速銑削表面形貌及表層組織研究[J].航空學(xué)報(bào),2008, 29(6):1710-1715.
[10]任軍學(xué),姚倡鋒,田衛(wèi)軍,等.球頭銑刀結(jié)構(gòu)參數(shù)對(duì)鈦合金銑削表面完整性的影響[J]. 航空制造技術(shù), 2010(1):81-84.
[11]吳澤. 微織構(gòu)自潤(rùn)滑與振蕩熱管自冷卻雙重效用的干切削刀具的研究[D]. 山東大學(xué), 2013.
[12]馮闖.基于鈦合金切削的硬質(zhì)合金球頭銑刀磨損研究[D].哈爾濱理工大學(xué),2015.
[13]YANG S C, CUI X Y, ZHANG Y H, et al. Effect of Tool Wear on Surface Qualities in Milling of TC4[J]. Materials Science Forum, 2016, 836-837:132-138.
[14]崔曉雁. 微織構(gòu)球頭銑刀銑削鈦合金表面質(zhì)量研究[D]. 哈爾濱理工大學(xué), 2016.
[15]石英. 高溫處理對(duì)鈦合金物理和機(jī)械性能的影響[J]. 中國(guó)材料進(jìn)展, 2000(9):18-19.
[16]Andy.鈦合金的特性及其應(yīng)用[J]. 2010.
[17]JIANG W, HU Y, ZHENG Q, et al. Study of Drilling Temperature on Cortical Bone Based on Microtexture Tool[J]. Journal of Chinese Agricultural Mechanization, 2016.
[18]楊樹(shù)財(cái), 王煥焱, 張玉華,等. 多目標(biāo)決策的微織構(gòu)球頭銑刀切削性能評(píng)價(jià)[J]. 哈爾濱理工大學(xué)學(xué)報(bào), 2016, 21(6):1-5.
[19]楊樹(shù)財(cái), 王志偉, 張玉華等. 微織構(gòu)球頭銑刀加工鈦合金的有限元仿真[J]. 沈陽(yáng)工業(yè)大學(xué)學(xué)報(bào), 2015, 37(5):530-535.
[20]吳彬, 張登清, 張斌. 基于正交試驗(yàn)法的TC4鈦合金銑削參數(shù)優(yōu)化[J]. 機(jī)械工程師, 2014(8):93-94.
[21]馮力. 回歸分析方法原理及SPSS實(shí)際操作[J]. 2004.
(編輯:王 萍)