Continuous finishing processes using a combination of burnishing and electrochemical finishing on bore surfaces

摘要

A novel finishing tool was developed by using the two finishing processes of burnishing and electrochemical finishing. The finishing tool design included a burnishing tool and an electrode as a bore surface finish improvement, which goes beyond traditional boring by utilizing the continuous processes of burnishing and electrochemical finishing. Only a short time is required to make the bore surface smooth and bright with the use of these continuous finishing processes. The experimental results show that the large current rating is closely concerned with the fast feed rate of the finishing tool and is advantageous to the finishing processes. A small end radius or a small thickness of the electrode provides a more sufficient discharge, which is advantageous for the finish. The finishing effect is better with a high rotational speed of the finishing tool, since the dregs discharge the electrochemical machining, and burnishing becomes easier, which is also advantageous to the finishing processes. The finishing time using continuous current was not as prolonged as with the pulsed current.