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首页> 外文会议>Transactions of the North American Manufacturing Research Institution of SME >AN EXPERIMENTAL STUDY OF INTERFACIAL BURR FORMATION IN DRILLING OF STACKED ALUMINUM SHEETS
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AN EXPERIMENTAL STUDY OF INTERFACIAL BURR FORMATION IN DRILLING OF STACKED ALUMINUM SHEETS

机译：叠层铝板钻孔中界面毛刺形成的实验研究

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Interfacial burr formation in the drilling of stacked sheets of material is a common problem in aircraft structure assembly. Eliminating or minimizing burrs at the interface of the stacked sheets may prevent the current need for de-stacking and deburring operations. This paper presents the results of experimental investigations into the effect of various drill geometry and process parameters on burr formation in stacks of 2024-T351 and 7075-T651 Aluminum. Analysis of the data indicates drill point angle, clamp type, and hole-to-clamp distance as being the most significant factors affecting interfacial burr formation. Further, drill feed, spindle speed (RPM) and point type, including specially ground step drills, also displayed a noticeable impact on interfacial burr formation. Comparisons of the various drill geometries under study indicate a design which performs best with regards to reducing interfacial burr formation for the workpiece materials considered in the experiments.
机译：在堆叠的材料片的钻孔中，界面毛刺的形成是飞机结构组装中的普遍问题。消除或最小化堆叠的片材的界面处的毛刺可以防止当前对堆叠和去毛刺操作的需求。本文介绍了对2024-T351和7075-T651铝堆中各种钻头几何形状和工艺参数对毛刺形成的影响进行实验研究的结果。数据分析表明，钻尖角度，夹具类型和孔与夹具之间的距离是影响界面毛刺形成的最重要因素。此外，钻头进给，主轴转速（RPM）和点型（包括专门磨削的阶梯钻）也对界面毛刺的形成产生了显着影响。对正在研究的各种钻头几何形状的比较表明，在减少实验中考虑的工件材料的界面毛刺形成方面，该设计表现最佳。

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