Ultrasonic helical scan grinding using coarse and small-diameter mounted wheel

In the finish grinding of parts with a narrow wall surface, it is difficult to secure a good machined surface using a coarse and small-diameter mounted grinding wheel because the number of active abrasive grains on the wheel is small. In this study, an ultrasonic helical scan grinding method was dev...

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Bibliographic Details
Published inJournal of the Japan Society for Abrasive Technology Vol. 67; no. 12; pp. 334 - 669
Main Authors YAMADA, Yoji, NINOMIYA, Shinichi, OBAYASHI, Syou, SUGIMOTO, Riku, IWAI, Manabu
Format Journal Article
LanguageJapanese
English
Published Tokyo The Japan Society for Abrasive Technology 01.12.2023
Japan Science and Technology Agency
Subjects
Abrasive finishing
abrasive trajectory
Abrasive wheels
Feed direction
Grains
Grinding wheels
High speed tool steels
HSS surface properties
Rotating machinery
small mounted wheel
Surface properties
ultrasonic helical scan grinding
Ultrasonic vibration
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Summary:In the finish grinding of parts with a narrow wall surface, it is difficult to secure a good machined surface using a coarse and small-diameter mounted grinding wheel because the number of active abrasive grains on the wheel is small. In this study, an ultrasonic helical scan grinding method was developed in which a rotating grinding wheel was ultrasonically vibrated in the direction of the grinding wheel axis, with the grinding wheel axis tilted in the feed direction. In this grinding method, the interference between abrasive grain trajectories increased due to the ultrasonic vibration of the abrasive grains, thus increasing the density of grinding marks. The results of a grinding experiment with high-speed tool steel using a PA120 grinding wheel with a diameter of 3.8 mm showed that ultrasonic helical scan grinding improved the ground surface properties and reduced the grinding resistance compared with conventional grinding, ultrasonic grinding, and helical scan grinding.
ISSN:0914-2703
1880-7534
DOI:10.11420/jsat.67.334