Abstract
A hybrid rotary electrode has been developed as a means to realize a precision electrocontact discharge (ECD) dressing of the bronze-bonded diamond grinding wheel. The hybrid electrode consists of paired electrode blades whose gaps are filled with GC abrasive grains to prevent the electric discharge from concentration without an excessively eroded part, and the removal of resolidified bond material to be piled up on the bond matrix is also expected. From the experiments using two electrodes, the hybrid one and a pure electrode without GC abrasives, it has been clarified that the truing effect due to ECD is produced at the DC voltage higher than 20 V in the both methods; however, the hybrid method has an ability to generate a closer wheel surface topography than that obtained from pure ECD method and a finished roughness better than that obtained from the mechanical method using a GC cup truer is achieved if a DC voltage lower than 40 V is applied. The wear of the grinding wheel after hybrid ECDD is the same as that after pure ECDD, but no increase in power due to undesirable contact of the metal bond with the workpiece is observed.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Journal of the Japan Society for Precision Engineering
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
