A novel tool concept for roughing and finishing operations
A novel tool concept for roughing and finishing operations
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DOI：
10.1016/j.promfg.2018.11.004
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发表时间：
2018
期刊：
影响因子：
--
通讯作者：
B. Denkena;T. Grove;L. Ellersiek
中科院分区：
文献类型：
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作者：
B. Denkena;T. Grove;L. Ellersiek
本文提出了一种适用于同时粗加工和精加工的新刀具概念。所研制的立铣刀有两个径向凹进的粗加工齿和两个锋利的精加工齿，粗加工齿带有后刀面倒角。虽然倒角切削刃由于加工阻尼而确保了高加工稳定性，但锋利的切削刃可生成最终表面。为了研究粗加工和精加工能力，将该刀具与仅具有倒角齿的粗加工刀具和仅具有尖齿的精加工刀具进行了比较。使用这三种刀具概念进行了铣削实验，分析了铣削力、工艺稳定性和表面质量。与粗加工刀具相比，新刀具概念的生成表面质量可以得到显着改善。然而，具有锋利刃口的精加工刀具不能达到预期的表面质量。此外，实验结果表明，新的工具概念的过程稳定性显着高于精加工工具的过程稳定性。
In this paper, a new tool concept suitable for simultaneous roughing and finishing operations is presented. The developed end mill has two radial recessed roughing teeth with a flank face chamfer and two sharp finishing teeth. While the chamfered cutting edges ensure a high process stability due to process damping, the sharp cutting edges generate the final surface. In order to investigate the roughing and finishing capabilities, the tool was compared with a roughing tool with chamfered teeth only and a finishing tool with sharp teeth only. With all three tool concepts milling experiments were carried out, in which forces, process stability and surface quality were analyzed. The generated surface quality for the new tool concept could be significantly improved compared to the roughing tool. However, the aimed surface quality of the finishing tool with sharp edges could not be achieved. Moreover, experimental results show that the process stability of the new tool concept is significantly higher than the process stability of the finishing tool.