Metallic glass has been widely used in making micro parts and equipment due to its excellent physical and chemical performance. A large quantity of burrs is produced in the micro-milling process that is hard to remove and seriously affects the quality and precision of the parts. Burrs should be effectively restrained; however, the burrs’ type, position and the effect of milling parameters on burrs’ generation in micro-milling metallic glass have not been systematically studied. In this paper, by using 3-D FEM simulation and taking micro-milling experiments of Zr-based metallic glass (Vit1), the burrs in flat-end milling and ball-end milling micro grooves were investigated. The burrs’ type and position were observed and summarized, the formation process of various burrs was analyzed in detail, and the influence of cutting parameters on burrs was clarified. Comparing the simulation and experiment result, we could confirm that the top burr and the entrance burr were produced during the processing of the flat-end milling cutter, and ball-end milling cutter effectively inhibits the production of the top burr but takes no actions on burrs’ generation at the entrance and the bottom of the groove. The main cause of the top burr is the extrusion of the tool, and the extrusion of the cutting layer metal and chip accumulation were the main reason for entrance and exit burrs. Reducing the axial cutting depth could effectively restrain the generation of burrs for both two kinds of milling tools.

金属玻璃由于其优异的物理和化学性能已被广泛用于制造微型零件和设备。在微铣削过程中会产生大量的毛刺，这些毛刺很难去除，严重影响了零件的质量和精度。应有效抑制毛刺；然而，对金属微磨玻璃中毛刺的种类，位置和磨削参数对毛刺产生的影响尚未得到系统的研究。本文通过3-D有限元模拟并进行了Zr基金属玻璃（Vit1）的微铣削实验，研究了平端铣削和球头铣削微槽中的毛刺。观察并总结了毛刺的类型和位置，详细分析了各种毛刺的形成过程，阐明了切削参数对毛刺的影响。比较仿真结果和实验结果，可以确定在平底铣刀加工过程中产生了顶毛刺和入口毛刺，而球头铣刀有效地抑制了顶毛刺的产生，但没有采取任何措施。在凹槽的入口和底部产生毛刺。顶部毛刺的主要原因是工具的挤压，而切削层金属和切屑堆积的挤压是进出毛刺的主要原因。减小轴向切削深度可以有效地抑制两种铣刀的毛刺的产生。我们可以确认顶部毛刺和入口毛刺是在平端铣刀的加工过程中产生的，而球形端铣刀有效地抑制了顶部毛刺的产生，但对入口和顶部的毛刺的产生没有任何作用凹槽的底部。顶部毛刺的主要原因是工具的挤压，而切削层金属和切屑堆积的挤压是进出毛刺的主要原因。减小轴向切削深度可以有效地抑制两种铣刀的毛刺的产生。我们可以确认顶部毛刺和入口毛刺是在平端铣刀的加工过程中产生的，而球形端铣刀有效地抑制了顶部毛刺的产生，但对入口和顶部的毛刺的产生没有任何作用凹槽的底部。顶部毛刺的主要原因是工具的挤压，而切削层金属和切屑堆积的挤压是进出毛刺的主要原因。减小轴向切削深度可以有效地抑制两种铣刀的毛刺的产生。切削层金属的挤压和切屑的堆积是进出毛刺的主要原因。减小轴向切削深度可以有效地抑制两种铣刀的毛刺的产生。切削层的挤压和金属屑的堆积是进出毛刺的主要原因。减小轴向切削深度可以有效地抑制两种铣刀的毛刺的产生。