CAJ | 학술논문

针对现有整体叶轮流道的五轴粗加工刀具路径冗余、切削余量不均等问题，通过分析叶轮流道的几何形状数学模型，考虑分层曲面的曲率变化情况，提出了一种叶轮流道五轴粗加工刀具路径的自适应层切生成方法。传统层切法每一层曲面的刀路间隔是相同的，而自适应层切法是随每层曲面的曲率变化而变化的。该方法经过五轴机床Mikron UCP 800的加工实验验证，可以实现高效切削，且刀具路径无冗余。
침대현유정체협륜류도적오축조가공도구로경용여、절삭여량불균등문제，통과분석협륜류도적궤하형상수학모형，고필분층곡면적곡솔변화정황，제출료일충협륜류도오축조가공도구로경적자괄응층절생성방법。전통층절법매일층곡면적도로간격시상동적，이자괄응층절법시수매층곡면적곡솔변화이변화적。해방법경과오축궤상Mikron UCP 800적가공실험험증，가이실현고효절삭，차도구로경무용여。
The major obstacles encountered in impeller channel roughing process are the redundancy of tool path and the uneven left over of materials. In the effort to overcome such deficiency, an adaptive layer mill-ing algorithm is proposed. Geometric characteristics of the channel as well as the curvature variation property of each layer surface are taken into consideration. The interval of tool path is fixed in traditional layer mill-ing but varied with curvature in adaptive layer milling. Experiment results show that the proposed method improves machining efficiency by five-axis NC machine tool, Mikron UCP 800.