本文主要研究内容
作者石晓芳（2019）在《基于动力学仿真的典型机匣零件高效切削变形控制与参数优化研究》一文中研究指出：切削加工变形问题一直困扰着机械制造行业,航空机匣零件因其结构复杂、壁薄且多由难加工材料制成,其切削加工变形问题尤为突出。本论文提出了一种结合切削动力学仿真预测切削力及切削过程有限元分析预测加工变形的方法,并在此基础上通过合理安排关键工序的走刀次数及每次走刀的切削用量来降低加工变形量,从而实现在满足加工质量的前提下提高此类零件的加工效率。主要研究内容包括:首先,在系统分析国内外有关航空难加工薄壁零件切削加工变形产生机理及其补偿措施的基础上,针对机匣零件的高效切削加工,从航空难加工材料切削机理、切削动力学仿真、切削过程有限元分析和切削参数优化等方面进行了文献综述,提出了一种提高此类零件切削加工效率的方法。其次,简要阐述了切削加工过程动力学建模的基本方法、车削力形成机理、机械式车削力预测公式及车削过程稳定性分析方法,给出了车削加工动态切削力及颤振稳定性叶瓣图预测实例。第三,对以火焰筒内外环为代表的典型薄壁机匣零件进行了切削加工工艺性分析,根据其现有的切削加工工艺,从中确定了关键加工工序、典型加工特征及其详细的切削加工参数。最后,针对关键加工工序及典型加工特征,建立了简化的三维工件模型及其有限元分析模型,对给定切削参数下的切削力、加工变形量进行了预测,通过合理调整关键工序的走刀次数及其切削用量,在在不增加变形量的前提下,提高了其切削效率。验证试验与工件试切结果均证实,本文所提出的方法不仅可以提高薄壁机匣零件的切削加工效率,而且也能满足其加工精度要求。
Abstract
qie xiao jia gong bian xing wen ti yi zhi kun rao zhao ji xie zhi zao hang ye ,hang kong ji xia ling jian yin ji jie gou fu za 、bi bao ju duo you nan jia gong cai liao zhi cheng ,ji qie xiao jia gong bian xing wen ti you wei tu chu 。ben lun wen di chu le yi chong jie ge qie xiao dong li xue fang zhen yu ce qie xiao li ji qie xiao guo cheng you xian yuan fen xi yu ce jia gong bian xing de fang fa ,bing zai ci ji chu shang tong guo ge li an pai guan jian gong xu de zou dao ci shu ji mei ci zou dao de qie xiao yong liang lai jiang di jia gong bian xing liang ,cong er shi xian zai man zu jia gong zhi liang de qian di xia di gao ci lei ling jian de jia gong xiao lv 。zhu yao yan jiu nei rong bao gua :shou xian ,zai ji tong fen xi guo nei wai you guan hang kong nan jia gong bao bi ling jian qie xiao jia gong bian xing chan sheng ji li ji ji bu chang cuo shi de ji chu shang ,zhen dui ji xia ling jian de gao xiao qie xiao jia gong ,cong hang kong nan jia gong cai liao qie xiao ji li 、qie xiao dong li xue fang zhen 、qie xiao guo cheng you xian yuan fen xi he qie xiao can shu you hua deng fang mian jin hang le wen suo zeng shu ,di chu le yi chong di gao ci lei ling jian qie xiao jia gong xiao lv de fang fa 。ji ci ,jian yao chan shu le qie xiao jia gong guo cheng dong li xue jian mo de ji ben fang fa 、che xiao li xing cheng ji li 、ji xie shi che xiao li yu ce gong shi ji che xiao guo cheng wen ding xing fen xi fang fa ,gei chu le che xiao jia gong dong tai qie xiao li ji chan zhen wen ding xing xie ban tu yu ce shi li 。di san ,dui yi huo yan tong nei wai huan wei dai biao de dian xing bao bi ji xia ling jian jin hang le qie xiao jia gong gong yi xing fen xi ,gen ju ji xian you de qie xiao jia gong gong yi ,cong zhong que ding le guan jian jia gong gong xu 、dian xing jia gong te zheng ji ji xiang xi de qie xiao jia gong can shu 。zui hou ,zhen dui guan jian jia gong gong xu ji dian xing jia gong te zheng ,jian li le jian hua de san wei gong jian mo xing ji ji you xian yuan fen xi mo xing ,dui gei ding qie xiao can shu xia de qie xiao li 、jia gong bian xing liang jin hang le yu ce ,tong guo ge li diao zheng guan jian gong xu de zou dao ci shu ji ji qie xiao yong liang ,zai zai bu zeng jia bian xing liang de qian di xia ,di gao le ji qie xiao xiao lv 。yan zheng shi yan yu gong jian shi qie jie guo jun zheng shi ,ben wen suo di chu de fang fa bu jin ke yi di gao bao bi ji xia ling jian de qie xiao jia gong xiao lv ,er ju ye neng man zu ji jia gong jing du yao qiu 。
论文参考文献
论文详细介绍
论文作者分别是来自湖南工业大学的石晓芳，发表于刊物湖南工业大学2019-07-29论文，是一篇关于航空机匣论文,难加工材料论文,有限元分析论文,变形控制论文,切削参数优论文,湖南工业大学2019-07-29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，资料来自湖南工业大学2019-07-29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。
标签：航空机匣论文; 难加工材料论文; 有限元分析论文; 变形控制论文; 切削参数优论文; 湖南工业大学2019-07-29论文;