LAMINATE DISC Russian patent published in 2000 - IPC

FIELD: manufacture of laminate discs, possibly at making tools for metal cutting, for example cut off laminate discs. SUBSTANCE: laminate disc includes at least in one of its lengthwise sections two layers. At least on boundary of front and(or) rear side of least of one layer or at least in one apex of at least one layer of section, at least portion of section boundary line is in the form of fragment of cone section of straight circular cone. EFFECT: enhanced effectiveness of fixation against self-unscrewing at placing, for example compound mass between disc body and pressure plates, effective use of friction adhesion with contact part such as pressure plate, lowered compression effort for achieving elastic deformation of disc portions for preventing self-unscrewing of threaded joint of disc, improved balancing properties of disc in threaded joint of shaft due to possibility of changing thickness and axial shift of disc, enhanced certainty of determining manufacturer due to applying on disc body respective mark. 23 cl, 21 dwg