FIELD: metal working by abrasive grinding tools. SUBSTANCE: petal-type abrasive wheel has boss 1 with two flanges 2, two wedge-type plates 3, two additional flanges 4 with shells 5 and petals 6 stringed on half-rings 7. Two brackets 8 are rigidly secured to boss 1. Flanges 2 have radial grooves 9; plates 3 have grooves 10. EFFECT: improved design. 2 dwg
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