微细铣削铝合金6061表面毛刺研究
发布时间：2018-08-02 18:53
【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。
[Abstract]:Objective to reveal the effect of milling process parameters (cutting depth, feed rate per tooth, cutting speed, v), and tool wear) on the size and shape of aluminum alloy 6061, in order to control the size and shape of aluminum alloy 6061 burr. Improve surface quality and optimize cutting process to provide reference. Methods based on the single factor test method, the milling experiments of aluminum alloy 6061 were carried out by using the coated cemented carbide micro diameter milling cutter. The data of the back milling, the top burr size data and the tool wear of the single factor test of cutting parameters were carried out, respectively. The morphological information of burr was collected and analyzed. Results the effect of apical burr size on the tip burr size of apical burr in retrograde milling was drawn directly. In the single factor cutting speed test, the maximum of side burr is 323 渭 m, and the maximum of reverse milling side is 268 渭 m. The maximum of the side burr is 332 渭 m, the maximum of the reverse side is 331 渭 m, the maximum of the side burr is 314 渭 m and the maximum of the inverse side is 264 渭 m. Conclusion the back milling is smaller than the top burr of the down-milling. With the increase of cutting depth, the burr is in turn long stripe, tear and wavy sawtooth. Tool wear is an important factor in the instability of cutting process, and it can also cause instability of burr shape and size. In order to reduce burr, cutting depth should be controlled by means of sharp cutting tool and reverse milling, and suitable cutting speed and feed rate should be selected.
【作者单位】： 北京建筑大学机电与车辆工程学院;城市轨道交通车辆服役性能保障北京市重点实验室;北京市建筑安全监测工程技术研究中心;
【基金】：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)~~
【分类号】：TG54
本文编号：2160389
[Abstract]:Objective to reveal the effect of milling process parameters (cutting depth, feed rate per tooth, cutting speed, v), and tool wear) on the size and shape of aluminum alloy 6061, in order to control the size and shape of aluminum alloy 6061 burr. Improve surface quality and optimize cutting process to provide reference. Methods based on the single factor test method, the milling experiments of aluminum alloy 6061 were carried out by using the coated cemented carbide micro diameter milling cutter. The data of the back milling, the top burr size data and the tool wear of the single factor test of cutting parameters were carried out, respectively. The morphological information of burr was collected and analyzed. Results the effect of apical burr size on the tip burr size of apical burr in retrograde milling was drawn directly. In the single factor cutting speed test, the maximum of side burr is 323 渭 m, and the maximum of reverse milling side is 268 渭 m. The maximum of the side burr is 332 渭 m, the maximum of the reverse side is 331 渭 m, the maximum of the side burr is 314 渭 m and the maximum of the inverse side is 264 渭 m. Conclusion the back milling is smaller than the top burr of the down-milling. With the increase of cutting depth, the burr is in turn long stripe, tear and wavy sawtooth. Tool wear is an important factor in the instability of cutting process, and it can also cause instability of burr shape and size. In order to reduce burr, cutting depth should be controlled by means of sharp cutting tool and reverse milling, and suitable cutting speed and feed rate should be selected.
【作者单位】： 北京建筑大学机电与车辆工程学院;城市轨道交通车辆服役性能保障北京市重点实验室;北京市建筑安全监测工程技术研究中心;
【基金】：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)~~
【分类号】：TG54
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