Journal of Northeastern University Natural Science ›› 2020, Vol. 41 ›› Issue (11): 1602-1608.DOI: 10.12068/j.issn.1005-3026.2020.11.013

• Mechanical Engineering • Previous Articles     Next Articles

Analysis of Material Removal and Hole Formation Process in Ball Helical Milling Process

WANG Hai-yan, TAO Ke-xin, JIN Tian   

  1. School of Control Engineering, Northeastern University at Qinhuangdao, Qinhuangdao 066004, China.
  • Received:2020-05-07 Revised:2020-05-07 Online:2020-11-15 Published:2020-11-16
  • Contact: WANG Hai-yan
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Abstract: According to the cutting mechanism of helical milling technology, considering the machining characteristics of titanium alloy and geometric features of ball milling cutters, the shape and relative positional relationship between the tool and the workpiece at different characteristic moments were discussed, and four typical moments were selected to study the hole wall formation mechanism. The section characteristics and cross section area of the removed undeformed cutting materials were discussed, and the material removal behavior was analyzed through typical moments in the ball helical milling process. The experiments in ball helical milling of titanium alloy were carried out, the cutting forces were measured, and the tool wear and hole making quality were studied. The results showed that the materials removal process in ball helical milling is uniform and stable basically consistent with the simulation process, and the cutting forces increase or decrease gradually with slight tool wear and high hole-making quality.

Key words: helical milling, ball-end milling cutter, kinematic analysis, material removal mechanism, cutting force

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