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1. (WO1980000012) METHOD AND DEVICE FOR MANUFACTURING ABRASIVE TOOLS
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1980/000012 International Application No.: PCT/SU1979/000035
Publication Date: 10.01.1980 International Filing Date: 31.05.1979
IPC:
B24D 18/00 (2006.01) ,B30B 1/00 (2006.01)
B PERFORMING OPERATIONS; TRANSPORTING
24
GRINDING; POLISHING
D
TOOLS FOR GRINDING, BUFFING OR SHARPENING
18
Manufacture of grinding tools, e.g. wheels, not otherwise provided for
B PERFORMING OPERATIONS; TRANSPORTING
30
PRESSES
B
PRESSES IN GENERAL; PRESSES NOT OTHERWISE PROVIDED FOR
1
Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen
Applicants:
Inventors:
Priority Data:
262490906.06.1978SU
Title (EN) METHOD AND DEVICE FOR MANUFACTURING ABRASIVE TOOLS
(FR) METHODE ET DISPOSITIF DE FABRICATION D"OUTILS ABRASIFS
Abstract:
(EN) A method for manufacturing abrasive tools used for working steels and alloys at high-speed operating conditions and forced operating conditions of grinding. The method consists in the hot forming and bakelization of an abrasive compound (13, 44) in a compressed state together with a pressing element side the press. Bimetallic members having a specific bending strength of at least 0.2 grade1 are used as the pressing element. The device for carrying out the method comprises a casing (1) with a charge opening (14) intended for placing in the casing (1) moulds with the abrasive compound (13). Heaters (3, 4) are mounted close to the moulds whereas between the heaters (3, 4) and the casing (1) bimetallic plates (2, 7) are mounted, so that the active layers thereof are in contact with the heaters (3, 4). The device comprises further a mean for maintaining the pressure, said means having the form of a locking ring (8) with a screw thread on its outer surface. The locking ring (8) is fixed in a threaded opening of the casing (1) and cooperates with one of the bimetallic plates (2, 7). the diameter of the opening of the locking ring (8) is such as to allow the interaction between the pressure means and the abrasive compound in the mould.
(FR) Methode de fabrication d"outils abrasifs utilisee pour l"usinage de l"acier et d"alliages dans des conditions de meulage a haute vitesse et de meulage force. La methode comprend le formage a chaud et la backelisation d"un compose abrasif (13, 44) a l"etat comprime avec un element presseur a l"exterieur de la presse. Des pieces bimetalliques ayant une resistance a la flexion specifique d"au moins 0,2 degres - 1 sont utilisees comme elements presseurs. Le dispositif d"application de la methode comprend un corps (1) ayant une ouverture de charge (14) servant a placer dans le corps (1) des moules avec un compose abrasif (13). Des rechauffeurs (3, 4) sont montes pres des moules et entre les rechauffeurs (3, 4) et le corps (1), des plaques bimetalliques (2, 7) sont montees de sorte que leurs couches actives soient en contact avec les rechauffeurs (3, 4). Le dispositif comprend en outre des moyens pour maintenir la pression, lesdits moyens ayant la forme d"un anneau de verrouillage (8) avec un filetage sur sa surface externe. L"anneau de verrouillage (8) est fixe dans une ouverture filetee du corps (1) et coopere avec l"une des plaques bimetalliques (2, 7). Le diametre de l"ouverture de l"anneau de verrouillage (8) est telle qu"elle permet l"interaction entre les moyens de pression et le compose abrasif dans le moule.
Designated States:
Publication Language: Russian (RU)
Filing Language: Russian (RU)