南京航空航天大学学报（英文版）2008，Vol.25Issue(1)：18-25,8.
刀具螺旋角对高速铣削系统稳定性的影响
INFLUENCE OF TOOL HELIX ANGLE ON STABILITY IN HIGH-SPEED MILLING PROCESS
摘要
Abstract
An integrated dynamic model considering the influence of the helix angle is developed through dividing the cutting process into three cutting processes: uninterrupted, entry, and exit cutting processes. The semi-discretized technique is used to approximate the finite dimensional Floquet transition matrix of the dynamic control equation to determine the stability of milling process. The stability charts for helix mills are obtained. Results show that the helix angle plays an important role in the stability of milling process. The stability regions with helix angle become larger than those without helix angle. Some ″islands″ are presented in the stability charts, and ″island″ locations are determined by the relation between the axial depth of cut and the helix pitch. The ″islands are connected by the ″bridge″ by the effects of entry and exit cutting processes. The theoretical results are validated by milling experiments.关键词
铣削/振动分析/稳定性/螺旋角Key words
milling (machining)/ vibration analysis/ stability/ helix angle分类
矿业与冶金引用本文复制引用
宋清华,艾兴,万熠,潘永智..刀具螺旋角对高速铣削系统稳定性的影响[J].南京航空航天大学学报（英文版）,2008,25(1):18-25,8.基金项目
Supported by the National Natural Science Foundation of China (50435020, 50705052, 50575126).国家自然科学基金项目(50435020, 50705052, 50575126)资助项目. （50435020, 50705052, 50575126）
