Grinding wheel

The invention relates to the machining of metals by cutting. The grinding wheel subject of the invention, which is made in the shape of a disc having a working surface placed along its periphery 2 and whose generating line is parallel to the axis of rotation 3 of the grinding wheel 1, a cylindrical part 4 intended to be clamped between attachment flanges and located at the central part of the grinding wheel 1, and faces 5, 6 whose planes are located at an angle alpha with respect to the axis of rotation 3 of the grinding wheel 1, is characterised in that the said central part 4 of the grinding wheel, is made so as to project from either side of the grinding wheel 1, in that its axis coincides with the axis of rotation 3 of the grinding wheel 1 and in that its faces 7, 9 are placed essentially perpendicular to the axis of rotation 3 of the grinding wheel 1. The grinding wheel concerned can be used in particular for machining blanks (slabs, half-finished coarse-laminated products called ) and of finished laminated products (round bars, square bars, hexagonal bars, tubes, sectional profiled bars) in the steel industry. L'INVENTION CONCERNE L'USINAGE DE METAUX PAR COUPE.LA MEULE FAISANT L'OBJET DE L'INVENTION, REALISEE SOUS FORME D'UN DISQUE AYANT UNE SURFACE DE TRAVAIL DISPOSEE SUIVANT SA PERIPHERIE 2 ET DONT LA GENERATRICE EST PARALLELE A L'AXE DE ROTATION 3 DE LA MEULE 1, UNE PARTIE CYLINDRIQUE 4 DESTINEE A ETRE SERREE ENTRE DES FLASQUES DE FIXATION ET SITUEE A LA PARTIE CENTRALE DE LA MEULE 1, ET DES FACES 5, 6 DONT LES PLANS SONT DISPOSES SOUS UN ANGLE A PAR RAPPORT A L'AXE DE ROTATION 3 DE LA MEULE 1, EST CARACTERISEE EN CE QUE LADITE PARTIE CENTRALE 4 DE LA MEULE EST REALISEE DE MANIERE A FAIRE SAILLIE DE PART ET D'AUTRE DE LA MEULE 1, QUE SON AXE COINCIDE AVEC L'AXE DE ROTATION 3 DE LA MEULE 1 ET QUE SES FACES 7, 8 SOIENT DISPOSEES SENSIBLEMENT PERPENDICULAIREMENT A L'AXE DE ROTATION 3 DE LA MEULE 1.LA MEULE EN QUESTION PEUT ETRE UTILISEE NOTAMMENT POUR L'USINAGE D'EBAUCHES (BRAMES, DEMI-PRODUITS DE LAMINAGE DEGROSSISSEUR APPELES "BLOOMS") ET DE PRODUITS LAMINES FINIS (RONDS, CARRES, HEXAGONAUX, TUBULAIRES, PROFILES DE FORMES) DANS LA SIDERURGIE.