Analysis of influence of installation angle on vibration finishing effect of cross hole specimen

Abstract

To investigate the influence of the installation angle of specimens on the finishing effect of the cross hole connecting part, vibration finishing technology of cross hole specimens is simulated and analyzed based on the discrete element method. The results show that the machining uniformity of the cross hole connecting part is better and the minimum wear depth of the connecting part is greater when the installation angle is 45° compared with that under 0° and 90°. Based on the single factor test method, ZLC100 horizontal vibration finishing equipment is used to carry out finishing test on cross hole specimens with different installation angles. The results show that the burr removal effect of the cross hole connecting part is better and the fillet effect of the cross hole connecting part is more obvious when the installation angle is 45° compared with that under 0° and 90°. The measured fillet radius is within the range of 0.3～0.7 mm at the connecting part and the normalized surface roughness Ra* has a significant downward trend in 8 regions of the inner surface of large and small holes when the installation angle is 45°. The experimental results are consistent with the simulation results.

Keywords

• installation angle
• the cross hole
• deburring
• discrete element simulation
• vibratory barrel finishing