本文主要研究内容
作者张龙龙（2019）在《磁粒研磨孔棱边毛刺的机理与试验研究》一文中研究指出：装备制造业的高速发展对机械零部件提出更高的技术要求,不断提高,而制孔作为一种非常普遍的加工工艺广泛应用于制造多种机械零件。当前的制孔方式主要有钻削、铣削、镗削、电火花制孔和激光制孔等,钻削和铣削制孔技术在航空航天领域应用最为广泛,但这些加工形式都会使得孔的出口和入口产生一定的毛刺,毛刺会对未来产品的装配带来极大隐患,所以必须要去除。目前,多采用人工研磨的方式对孔棱边毛刺进行去除,因孔的数量多,使得该工序的任务最为繁重,且人工方法很难保证毛刺的去除效率和去除质量,毛刺去除的一致性也比较差。且研磨方法将直接影响到孔的表面质量。磁粒研磨法对表面材料进行光整加工时具备“尖点效应”的优点,能够快速对孔棱边毛刺实现优先去除。本课题研究内容基于磁粒研磨的加工机理,提出了规划研磨路径的方式来提高棱边毛刺去除效率的新方法,通过对研磨工艺参数进行了研究分析,来提高棱边毛刺去除质量。选取了两种典型毛刺,平面孔棱边毛刺和十字交叉孔棱边毛刺作为主要研究对象。对TC4平面孔棱边毛刺进行研磨去除时,本文设计了两种不同的研磨加工方案,对孔棱边毛刺进行了可行性的试验研究;对Al 7075交叉孔相贯线处毛刺进行研磨去除时,讨论了研磨轨迹、磁极开槽方式对研磨的影响。实验结果以表面形貌、毛刺高度、表面粗糙度为主要评价指标。主要的研究结论为:(1)磁粒研磨去除TC4平面孔棱边毛刺的研究时,首先提出了两种不同的磁粒研磨去除方式,并分别利用ANSOFT软件对磁极进行了磁场模拟分析;同时利用ANSYS软件对孔棱边毛刺所受磁性颗粒的切削压力进行了有限元模拟;并对研磨加工过程中的孔棱边毛刺受力进行分析;进一步确认了实验研究的可行性,并提供了理论基础。采用响应面法规划了Box-Behnken试验,研究了试验中的主要研磨工艺参数,设计完成优化试验,包括磁极转速、磁粒粒径、研磨液填充量,得出了研磨工艺参数对试验结果的影响规律,大幅提高了平面孔出口棱边毛刺的去除效率;对比了传统研磨方法与改进后的研磨方法下的孔表面形貌,结果证实了磁极公转运动下的磁粒研磨孔表面形貌更加理想,研磨质量更好。(2)磁粒研磨对Al 7075交叉孔相贯线处棱边毛刺研究时,首先提出了两种研磨轨迹形式,分别利用ANSOFT软件对磁极进行了磁场模拟分析;改善磁极的形状结构,提高磁场分布;通过一系列实验研究,找到了交叉孔棱边毛刺去除的最佳工艺参数,毛刺完全被去除,孔内壁微观形貌大幅改善。
Abstract
zhuang bei zhi zao ye de gao su fa zhan dui ji xie ling bu jian di chu geng gao de ji shu yao qiu ,bu duan di gao ,er zhi kong zuo wei yi chong fei chang pu bian de jia gong gong yi an fan ying yong yu zhi zao duo chong ji xie ling jian 。dang qian de zhi kong fang shi zhu yao you zuan xiao 、xi xiao 、tang xiao 、dian huo hua zhi kong he ji guang zhi kong deng ,zuan xiao he xi xiao zhi kong ji shu zai hang kong hang tian ling yu ying yong zui wei an fan ,dan zhe xie jia gong xing shi dou hui shi de kong de chu kou he ru kou chan sheng yi ding de mao ci ,mao ci hui dui wei lai chan pin de zhuang pei dai lai ji da yin huan ,suo yi bi xu yao qu chu 。mu qian ,duo cai yong ren gong yan mo de fang shi dui kong leng bian mao ci jin hang qu chu ,yin kong de shu liang duo ,shi de gai gong xu de ren wu zui wei fan chong ,ju ren gong fang fa hen nan bao zheng mao ci de qu chu xiao lv he qu chu zhi liang ,mao ci qu chu de yi zhi xing ye bi jiao cha 。ju yan mo fang fa jiang zhi jie ying xiang dao kong de biao mian zhi liang 。ci li yan mo fa dui biao mian cai liao jin hang guang zheng jia gong shi ju bei “jian dian xiao ying ”de you dian ,neng gou kuai su dui kong leng bian mao ci shi xian you xian qu chu 。ben ke ti yan jiu nei rong ji yu ci li yan mo de jia gong ji li ,di chu le gui hua yan mo lu jing de fang shi lai di gao leng bian mao ci qu chu xiao lv de xin fang fa ,tong guo dui yan mo gong yi can shu jin hang le yan jiu fen xi ,lai di gao leng bian mao ci qu chu zhi liang 。shua qu le liang chong dian xing mao ci ,ping mian kong leng bian mao ci he shi zi jiao cha kong leng bian mao ci zuo wei zhu yao yan jiu dui xiang 。dui TC4ping mian kong leng bian mao ci jin hang yan mo qu chu shi ,ben wen she ji le liang chong bu tong de yan mo jia gong fang an ,dui kong leng bian mao ci jin hang le ke hang xing de shi yan yan jiu ;dui Al 7075jiao cha kong xiang guan xian chu mao ci jin hang yan mo qu chu shi ,tao lun le yan mo gui ji 、ci ji kai cao fang shi dui yan mo de ying xiang 。shi yan jie guo yi biao mian xing mao 、mao ci gao du 、biao mian cu cao du wei zhu yao ping jia zhi biao 。zhu yao de yan jiu jie lun wei :(1)ci li yan mo qu chu TC4ping mian kong leng bian mao ci de yan jiu shi ,shou xian di chu le liang chong bu tong de ci li yan mo qu chu fang shi ,bing fen bie li yong ANSOFTruan jian dui ci ji jin hang le ci chang mo ni fen xi ;tong shi li yong ANSYSruan jian dui kong leng bian mao ci suo shou ci xing ke li de qie xiao ya li jin hang le you xian yuan mo ni ;bing dui yan mo jia gong guo cheng zhong de kong leng bian mao ci shou li jin hang fen xi ;jin yi bu que ren le shi yan yan jiu de ke hang xing ,bing di gong le li lun ji chu 。cai yong xiang ying mian fa gui hua le Box-Behnkenshi yan ,yan jiu le shi yan zhong de zhu yao yan mo gong yi can shu ,she ji wan cheng you hua shi yan ,bao gua ci ji zhuai su 、ci li li jing 、yan mo ye tian chong liang ,de chu le yan mo gong yi can shu dui shi yan jie guo de ying xiang gui lv ,da fu di gao le ping mian kong chu kou leng bian mao ci de qu chu xiao lv ;dui bi le chuan tong yan mo fang fa yu gai jin hou de yan mo fang fa xia de kong biao mian xing mao ,jie guo zheng shi le ci ji gong zhuai yun dong xia de ci li yan mo kong biao mian xing mao geng jia li xiang ,yan mo zhi liang geng hao 。(2)ci li yan mo dui Al 7075jiao cha kong xiang guan xian chu leng bian mao ci yan jiu shi ,shou xian di chu le liang chong yan mo gui ji xing shi ,fen bie li yong ANSOFTruan jian dui ci ji jin hang le ci chang mo ni fen xi ;gai shan ci ji de xing zhuang jie gou ,di gao ci chang fen bu ;tong guo yi ji lie shi yan yan jiu ,zhao dao le jiao cha kong leng bian mao ci qu chu de zui jia gong yi can shu ,mao ci wan quan bei qu chu ,kong nei bi wei guan xing mao da fu gai shan 。
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论文详细介绍
论文作者分别是来自辽宁科技大学的张龙龙，发表于刊物辽宁科技大学2019-11-25论文，是一篇关于磁粒研磨论文,平面孔论文,交叉孔论文,毛刺论文,表面形貌论文,辽宁科技大学2019-11-25论文的文章。本文可供学术参考使用，各位学者可以免费参考阅读下载，文章观点不代表本站观点，资料来自辽宁科技大学2019-11-25论文网站，若本站收录的文献无意侵犯了您的著作版权，请联系我们删除。