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首页> 外文会议>Transactions of the North American Manufacturing Research Institution of SME >COMPARING DRILLING AND CIRCULAR MILLING FOR HOLE MAKING IN BI-LAYER COMPOSITE MATERIALS CONSISTING OF CARBON FIBER REINFORCED PLASTIC (CFRP) LAMINATES AND TITANIUM ALLOYS
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COMPARING DRILLING AND CIRCULAR MILLING FOR HOLE MAKING IN BI-LAYER COMPOSITE MATERIALS CONSISTING OF CARBON FIBER REINFORCED PLASTIC (CFRP) LAMINATES AND TITANIUM ALLOYS

机译：由碳纤维增强塑料（CFRP）叠层和钛合金构成的双层复合材料中孔加工的钻孔和圆铣削比较

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摘要

Construction parts consisting of two-layer composite materials made of carbon fiber reinforced plastic (CFRP) laminates and TiAI6V4 still need to be machined, whereby drill holes are frequently manufactured. Special attention has to be paid to the machining quality, which implies dimensional accuracy as well as a defect-free peripheral zone. Machining defects often occur as a consequence of excessive mechanical and thermal loads, which are often caused by wrong process conditions or by the wrong choice of machining process itself. With respect to widely used state-of-the-art machine tools providing high performance and equipped with potent control unit, for the comparatively large drill hole, circular milling gains interest as an alternative to the drilling operation (Weinert et al. 2005).rnHere, the circular milling process is compared to the drilling process focusing on the hole making of 6 mm diameter to two-layer composite materialrnconsisting of CFRP (carbon fiber reinforced plastic) laminates and TiAI6V4. The investigations were focused mainly on the influence of hole making process on the bore hole quality. The hole diameter, the surface roughness and the roundness are compared and evaluated between circular milling process and drilling one, and also the two processes followed by reaming. Moreover, the thrust forces during the two processes were measured and the transition between the thrust force and tool wear are considered.
机译：由碳纤维增强塑料（CFRP）层压板和TiAl6V4制成的两层复合材料构成的建筑零件仍需要进行机械加工，因此经常要制造钻孔。必须特别注意加工质量，这意味着尺寸精度以及无缺陷的外围区域。由于过大的机械和热负荷，经常会出现机加工缺陷，这通常是由于错误的加工条件或错误的加工过程本身造成的。对于广泛使用的，提供高性能并配备有力控制单元的先进机床，对于较大的钻孔，圆形铣削已成为替代钻孔操作的兴趣所在（Weinert等人，2005）。在此，将圆形铣削工艺与钻孔工艺进行了比较，钻孔工艺的重点是将直径为6 mm的孔加工成由CFRP（碳纤维增强塑料）层压板和TiAl6V4制成的两层复合材料。研究主要集中在制孔工艺对钻孔质量的影响上。比较和评估圆铣削过程和钻孔过程中的孔直径，表面粗糙度和圆度，然后对这两个过程进行铰孔。此外，测量了这两个过程中的推力，并考虑了推力和工具磨损之间的过渡。

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