Modified DLC-Coated Guide Pads for BTA Deep Hole Drilling Tools
Modified DLC-Coated Guide Pads for BTA Deep Hole Drilling Tools
复制标题
用于 BTA 深孔钻具的改进型 DLC 涂层导向块
DOI：
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发表时间：
2010
期刊：
影响因子：
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通讯作者：
T. Stucky
中科院分区：
文献类型：
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作者：
D. Biermann;N. Kessler;T. Upmeier;T. Stucky
BTA（镗削和套料协会）深孔钻削工艺通常用于加工具有大钻深直径比（l/D）和出色工件质量的钻孔。非对称工具设计导致切削力和被动力的非零径向分量，其通过所谓的导向垫传导到钻孔壁。这些导向垫通过成形工艺使钻孔壁平滑并改善表面质量。加工具有高粘附倾向的材料（例如高合金不锈钢）的工艺遭受钻孔中的差的表面质量和来自工件材料在导向垫上的粘附。本文研究了BTA深孔钻削刀具用改性类金刚石（DLC）涂层导卫片。实验的范围是通过降低导向垫的摩擦系数来减少粘附，以及改善井壁的质量。
The BTA (Boring and Trepanning Association) deep hole drilling process is commonly used to machine boreholes with a large drilling depth-to-diameter ratio (l/D) and outstanding workpiece quality. The asymmetric tool design leads to a nonzero radial component of the cutting force and the passive force, which are conducted to the borehole wall by so-called guide pads. These guide pads smooth the borehole wall by a forming process and improve the surface quality. Processes, that machine materials with a high adhesion tendency, such as high alloy stainless steel, suffer from poor surface quality in the borehole and the adhesion from the workpiece material on the guide pads. In this paper modified Diamond-Like-Carbon (DLC) coated guide pads for BTA deep hole drilling tools are investigated. The scope of the experiments was the reduction of the adhesion by reducing the friction coefficient of the guide pads, as well as the improvement of the quality of the borehole wall.