| 微细铣削铝合金6061表面毛刺研究 |
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| 引用本文： | 袁美霞,刘少楠,唐伯雁,高振莉,窦蕴平. 微细铣削铝合金6061表面毛刺研究[J]. 表面技术, 2017, 46(8): 268-273. DOI: 10.16490/j.cnki.issn.1001-3660.2017.08.043 |
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| 作者姓名： | 袁美霞 刘少楠 唐伯雁 高振莉 窦蕴平 |
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| 作者单位： | 北京建筑大学机电与车辆工程学院,北京100044;城市轨道交通车辆服役性能保障北京市重点实验室,北京100044;北京市建筑安全监测工程技术研究中心,北京100044;北京建筑大学机电与车辆工程学院,北京,100044 |
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| 基金项目： | 北京市教育委员会科技计划面上项目（KM201510016008）；北京市优秀人才培养资助（2014000020124G056）；国家自然科学基金项目（51505006） |
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| 摘 要： | 目的揭示微细铣削铝合金6061过程中,铣削工艺参数(切削深度a_p、每齿进给量f_z、切削速度v)、顺逆铣方式、刀具磨损对毛刺大小及形态的影响规律,为控制铝合金6061毛刺,提高表面质量,优化切削工艺提供参考。方法基于单因素试验方法,采用涂层硬质合金微直径铣刀,对铝合金6061进行了铣削加工试验,分别对切削参数单因素试验的逆铣、顺铣顶端毛刺大小数据以及刀具磨损、毛刺形态信息进行采集和分析。结果直观绘制了a_p、v、f_z对逆顺铣两侧顶端毛刺大小的影响规律图。单因素切削速度试验中,顺铣侧毛刺最大为323μm,逆铣侧最大为268μm;单因素每齿进给量试验中,顺铣侧毛刺最大为332μm,逆铣侧最大为331μm;单因素切深试验中顺铣侧毛刺最大为314μm,逆铣侧最大为264μm。结论逆铣比顺铣的顶端毛刺小,随切削深度增加,毛刺依次呈现长条须状、撕裂状、波浪形锯齿状。刀具磨损是造成切削过程不稳定的重要因素,同时也会造成毛刺形态和大小不稳定。为尽量减少毛刺,应采用锋利刀具和逆铣方式,控制切削深度,选择合适的切削速度和进给量。
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| 关 键 词： | 微毛刺 微铣削 顺铣 逆铣 刀具磨损 切削参数 |
| 收稿时间： | 2017-03-05 |
| 修稿时间： | 2017-08-20 |
Investigation on Burrs on Micro Milled Aluminum Alloy 6061 |
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| YUAN Mei-xi,LIU Shao-nan,TANG Bo-yan,GAO Zhen-li and DOU Yun-ping. Investigation on Burrs on Micro Milled Aluminum Alloy 6061[J]. Surface Technology, 2017, 46(8): 268-273. DOI: 10.16490/j.cnki.issn.1001-3660.2017.08.043 |
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| Authors: | YUAN Mei-xi LIU Shao-nan TANG Bo-yan GAO Zhen-li DOU Yun-ping |
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| Affiliation: | 1.School of Mechanical-electronic and Automobile Engineering, Beijing University of Civil Engineering and Architecture, Beijing 100044, China; 2.Beijing Key Laboratory of Performance Guarantee on Urban Rail Transit Vehicles, Beijing 100044, China; 3.Beijing Engineering Research Center of Monitoring for Construction Safety, Beijing 100044, China,School of Mechanical-electronic and Automobile Engineering, Beijing University of Civil Engineering and Architecture, Beijing 100044, China,1.School of Mechanical-electronic and Automobile Engineering, Beijing University of Civil Engineering and Architecture, Beijing 100044, China; 2.Beijing Key Laboratory of Performance Guarantee on Urban Rail Transit Vehicles, Beijing 100044, China; 3.Beijing Engineering Research Center of Monitoring for Construction Safety, Beijing 100044, China,1.School of Mechanical-electronic and Automobile Engineering, Beijing University of Civil Engineering and Architecture, Beijing 100044, China; 2.Beijing Key Laboratory of Performance Guarantee on Urban Rail Transit Vehicles, Beijing 100044, China; 3.Beijing Engineering Research Center of Monitoring for Construction Safety, Beijing 100044, China and 1.School of Mechanical-electronic and Automobile Engineering, Beijing University of Civil Engineering and Architecture, Beijing 100044, China; 2.Beijing Key Laboratory of Performance Guarantee on Urban Rail Transit Vehicles, Beijing 100044, China; 3.Beijing Engineering Research Center of Monitoring for Construction Safety, Beijing 100044, China |
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| Abstract: | The work aims to provide reference for controlling burrs on aluminum alloy 6061,improving surface quality and optimizing cutting process by revealing law of influences of milling process parameters (cutting depth ap,feed per toothfz and cutting speed v),down and up milling methods as well as tool wear on burr size and shape during micro milling of aluminum alloy 6061.Based on single-factor test method,milling processing test was performed to aluminum alloy 6061 with micro-diameter cutter for coated carbide,so as to collect and analyze such information as top burr size data,tool wear and burr shape for the single-factor test.A diagram indicating law of influences of ap,v and fz on the top burr size ob both sides of up/down milling was visually plotted.In the single-factor cutting speed test,the maximum burr size was 323 μrm on down milling side and 268 μrm on up milling side;in the single-factor feed per tooth test,the maximum burr size was 332 μm on down milling side and 331 μm on up milling side;in the single-factor cutting depth test,the maximum burr size was 314 μm on down milling side and 264 μm on up milling side.Top burr size on up milling side is smaller than that on down milling side.With the increase of cutting depth,burrs appear to be long fibrous,tearing and wavy serrated shape successively.Tool wear is an important factor leading to unstable cutting process.It can also cause unstable burr shape and size.Adopting sharp tools and up milling,controlling cutting depth and selecting proper cutting speed and feed rate contribute to minimization of burrs. |
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| Keywords: | micro burr micro milling down milling up milling tool wear cutting parameters |
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