There is provided a metal-bonded grinding stone including an abrasive grain layer in which a plurality of abrasive grains and a plurality of pores are dispersed in a metal bonding material, in which a porosity of the plurality of pores in the abrasive grain layer is 40% or more and 99% or less.
B24D 3/10 - Propriétés physiques des corps ou feuilles abrasives, p. ex. surfaces abrasives de nature particulièreCorps ou feuilles abrasives caractérisés par leurs constituants les constituants étant utilisés comme agglomérants et étant essentiellement inorganiques métalliques à structure poreuse ou alvéolaire, p. ex. pour utiliser avec des diamants en tant qu'abrasifs
3442322222Si, carbon fibers, carbon nanotubes, TiC, WC and TaC, metal particles, and metal oxide particles having oxygen vacancies at a temperature higher than the melting point of the metal particles in a mold that is filled with the content, thereby melting the metal particles; a step for allowing oxygen released from a molten product of the metal particles to be absorbed by the metal oxide particles; and a step for cooling the mold and then collecting a composite material containing the inorganic particles and a matrix metal to which the inorganic particles are bound.
A metal-bonded grinding wheel comprising an abrasive grain layer in which a plurality of abrasive grains and a plurality of pores are dispersed in a metal bonding material. The porosity of the plurality of pores in the abrasive grain layer is between 40% and 99% inclusive.
B24D 3/10 - Propriétés physiques des corps ou feuilles abrasives, p. ex. surfaces abrasives de nature particulièreCorps ou feuilles abrasives caractérisés par leurs constituants les constituants étant utilisés comme agglomérants et étant essentiellement inorganiques métalliques à structure poreuse ou alvéolaire, p. ex. pour utiliser avec des diamants en tant qu'abrasifs
B24D 3/02 - Propriétés physiques des corps ou feuilles abrasives, p. ex. surfaces abrasives de nature particulièreCorps ou feuilles abrasives caractérisés par leurs constituants les constituants étant utilisés comme agglomérants
B24D 3/06 - Propriétés physiques des corps ou feuilles abrasives, p. ex. surfaces abrasives de nature particulièreCorps ou feuilles abrasives caractérisés par leurs constituants les constituants étant utilisés comme agglomérants et étant essentiellement inorganiques métalliques
A rotary cutting tool in which a chip is attached to the tip of a shaft-like shank. The chip has a cutting edge and a rake surface that extends from the cutting edge. The rake surface has a roughened region that is formed near the cutting edge.
A rotary dresser includes a cored bar, an electroformed layer, and superabrasive grains fixed to an outer circumferential surface of the electroformed layer, and a plurality of island regions in which a plurality of superabrasive grains is gathered is provided at certain intervals. Since a plurality of the island regions in which a plurality of the superabrasive grains is gathered is provided at certain intervals, the same degree of dressing accuracy can be obtained as in a case in which expensive large superabrasive grains are fixed at a low density using cheap and small superabrasive grains, it is possible to decrease the contact area of a single superabrasive grain, and favorable cutting quality can be obtained.
B24B 53/07 - Dispositifs ou moyens pour dresser ou remettre en état des surfaces abrasives des meules profilées utilisant des outils de forme complémentaire de celle à réaliser, p. ex. blocs, rouleaux profilés
B24D 3/06 - Propriétés physiques des corps ou feuilles abrasives, p. ex. surfaces abrasives de nature particulièreCorps ou feuilles abrasives caractérisés par leurs constituants les constituants étant utilisés comme agglomérants et étant essentiellement inorganiques métalliques
B24D 18/00 - Fabrication d'outils pour meuler, p. ex. roues, non prévue ailleurs
B24B 53/06 - Dispositifs ou moyens pour dresser ou remettre en état des surfaces abrasives des meules profilées
The rotary dresser is provided with a cored bar, an electrocast layer and super-abrasive particles fixed to the outer circumferential surface of the electrocast layer, and multiple aggregate regions in which multiple super-abrasive particles are aggregated are provided at intervals on the outer circumferential surface. Because multiple aggregate regions in which multiple super-abrasive particles are aggregated are provided at intervals, dressing precision similar to when expensive large super-abrasive particles are fixed at low density is obtained with inexpensive small super-abrasive particles, and the contact surface area of a single super-abrasive particle can be made small to obtain a favorable sharpness. Moreover, even if super-abrasive particles of the same particle size are used and the number of abrasive particles with respect to the surface area of the outer circumferential surface is the same, by expanding the intervals between the super-abrasive particles of one aggregate region and the super-abrasive particles of the next aggregate region during rotation of the rotary dresser, the regions without abrasive particles can be widened and sharpness can be improved compared to when the super-abrasive particles are dispersed evenly over the outer circumferential surface.
B24B 53/07 - Dispositifs ou moyens pour dresser ou remettre en état des surfaces abrasives des meules profilées utilisant des outils de forme complémentaire de celle à réaliser, p. ex. blocs, rouleaux profilés
B24D 3/00 - Propriétés physiques des corps ou feuilles abrasives, p. ex. surfaces abrasives de nature particulièreCorps ou feuilles abrasives caractérisés par leurs constituants
B24D 5/00 - Meules agglomérées, ou meules comportant des segments abrasifs rapportés, conçues pour travailler uniquement par leur périphérieBagues ou accessoires pour le montage des ces meules
B24D 5/06 - Meules agglomérées, ou meules comportant des segments abrasifs rapportés, conçues pour travailler uniquement par leur périphérieBagues ou accessoires pour le montage des ces meules comportant des segments abrasifs rapportés, p. ex. meules segmentées
Abrasive grinding wheels [machines]; band saw; bandsaw blades for machine; blades for circular saw; machine parts, namely machine parts for cutting, drilling, milling and polishing, all goods with diamond-bonded or cubic boron nitride coating; super-abrasive tools being parts of machines.
A plating layer 18 of Ni or the like is formed around the outer peripheral face 14 of a wire tool 10, and super abrasive grains 16 are electrodeposited so as to be embedded in the plating layer 18. A coating layer 20 is formed on the surface of the super abrasive grains 16 to increase efficiency during electrodeposition. The thickness of the coating layer 20 formed on the super abrasive grains 16 is less than 0.1 μm, and preferably not more than 0.05 μm. The coating layer 20 is thin enough that its mass is less than 10% of the mass of the super abrasive grain 16. Accordingly, the super abrasive grains 16 are electrodeposited in a single layer around the outer peripheral face 14 of the core wire 12. As a result, the super abrasive grains 16 do not readily come off the core wire 12, which means that the wire tool will have a longer life. Also, since there is no need to remove any excess super abrasive grains after their electrodeposition, manufacturing costs can be cut and less work is entailed.
B28D 1/08 - Travail de la pierre ou des matériaux analogues p. ex. briques, béton, non prévu ailleursMachines, dispositifs, outils à cet effet par sciage avec des lames de scie du type sans fin, p. ex. des scies à chaîne, des scies à ruban
Provided is a boring rotary cutting tool constituted (1) such that a body (2) includes a fluted portion (or a chip discharging groove) (3a) having a helix angle of 5 to 30 degrees, (2) such that a polycrystalline diamond tip (4) is arranged as an oblique blade along a margin portion (3) within a range of 0.2 mm, (3) such that the polycrystalline diamond tip has a leading blade portion (6) formed integrally therewith on its leading side in a tool advancing direction and a finishing blade portion (7) formed integrally therewith on its trailing side, and (4) such that blade chamfer portions (9 and 11) have a core height (H) of ± 0.2 mm. The boring rotary cutting tool satisfying all the conditions (1) to (4) performs not an interrupted operation but a continuous operation, although it is made of one tool, so that it can perform a coarse operation, and is enabled to improve the chip discharge efficiency by reducing the chip discharging resistance while dividing the chips. Thus, the influences of the chips at the cutting time can be eliminated as much as possible thereby to make better the roundness of a bore formed in the work.
Electric powered tools for metal and stone-working, all
performance cutting, drilling, boring, grinding, abrasion,
polishing, or surface treatment functions, namely saws, saw
blades, cutters, grinding plates, wheels, drills, bits,
reamers, bites and dressers.
Die-cutting and tapping machines, lapping machines, milling machines, vertical shapers, drilling machines for metal working, broaching machines, lathes for metal working; plastic processing machines, namely, compression molding machines, hydraulic presses for metal working, rolling mills, grinding machines for metal working, tubing mills for metal working, engraving machines, contouring machines for industrial use, truing machines, trimming machines, shaping machines for metal working, honing machines for metal working, hand-held power driven grinders, oxygen acetylene welding cutters, compressed air drilling machines, electric hand drills, electron beam welding machines, drill bits for power drills, drill chucks for power drills, drill heads for metal working machines, power-driven reamers, milling cutters, stone crushers, coal cutting machines, ore treating machines, rock drills, well drilling machines, power-driven post hole diggers, concrete construction machines for use in road construction; stone working machines, namely, stone grinding and polishing machines, circular saws, saw blades for power saws, saw benches for power saws; glass working machines, namely, glass cutters; glassware manufacturing machines and apparatus, namely, abrasive grinding wheels for glass chamfering machines
A band saw and a method of manufacturing the band saw. The band saw comprises a band-like flat plate-shaped base metal (1) and a blade part (4) formed by fixing abrasive grains to one end edge part (3) of two end edge parts (2) and (3) extending in the longitudinal direction of the base metal (1). Recessed patterns are formed in one surface of the two surfaces of the base metal (1). Projected patterns are formed on the other surface at positions facing the recessed patterns. Thus, the band saw having excellent rigidity, excellent sharpness, and high cutting accuracy can be provided.
14 - Métaux précieux et leurs alliages; bijouterie; horlogerie
Produits et services
Die-cutting and tapping machines, lapping machine, milling machines, vertical shaper machines, drilling machines except for woodworking, broaching machines, lathes for metal working, plastic processing machines, hydraulic presses for metal working, rolling mills, grinding machines, tubing mills for metal working, engraving machines, contouring machines, truing machines, trimming machines, shaping machines for metal working, honing machines for metal working, grinders, oxygen acetylene welding cutters, compressed air drilling machines, electric hand-held drills, electron beam welding machines, drill bits as parts of drilling machines, drill chucks as parts of drilling machines, drill heads as parts of metalworking machines, power reamers, milling cutter machines, stone crushing machines, coal cutting machines, ore treating machines, power rock drills, well drilling machines, digging machines in the nature of excavators, stone working machines, circular saws, saw blades as parts of power saw machines and saw benches as parts of power saw machines; glass working machines; glassware manufacturing machines and structural apparatus therefor [ Garnet jewelry, olivine gems, malachite jewelry, diamonds, opal jewelry, ruby jewelry, agates jewelry, cat's-eye jewelry, moonstone jewelry, beryl jewelry, jasper jewelry, green jadeite jewelry, sapphire jewelry, coral jewelry, ivory jewelry, crystal jewelry, star ruby jewelry, star sapphire jewelry, alexandrite jewelry, aquamarine jewelry, emerald jewelry, chalcedony jewelry, zircon jewelry, pearl jewelry, cubic zirconia jewelry, chrysoberyl jewelry, turquoise jewelry, topaz jewelry, tourmaline jewelry, tiger's-eye jewelry, yellow jade jewelry, black jade jewelry, gold alloy ingots, gold unwrought or beaten, unrefined precious metals, namely, gold; gold ingots, rhodium, ruthenium, castings of platinum and platinum alloy, unrefined precious metals, namely, platinum; platinum ingots, platinum alloy ingots, osmium, castings of silver and silver alloy, unrefined precious metals, namely, silver; silver ingots, silver alloy ingots, iridium, palladium ]
14 - Métaux précieux et leurs alliages; bijouterie; horlogerie
Produits et services
Die-cutting and tapping machines, lapping machine, milling machines, vertical shaper machines, drilling machines except for woodworking, broaching machines, lathes for metal working, plastic processing machines, hydraulic presses for metal working, rolling mills, grinding machines, tubing mills for metal working, engraving machines, contouring machines, truing machines, trimming machines, shaping machines for metal working, honing machines for metal working, grinders, oxygen acetylene welding cutters, compressed air drilling machines, electric drills, electron beam welding machines, drill bits as parts of drilling machines, drill chucks as parts of drilling machines, drill heads as parts of metalworking machines, power reamers, milling cutter machines, stone crushing machines, coal cutting machines, ore treating machines, power rock drills, well drilling machines, diggers in the nature of excavators, stone working machines, circular saws, saw blades as parts of power saw machines and saw benches as parts of power saw machines [ Garnet jewelry, olivine gems, malachite jewelry, diamonds, opal jewelry, ruby jewelry, agates jewelry, cat's-eye jewelry, moonstone jewelry, beryl jewelry, jasper jewelry, green jadeite jewelry, sapphire jewelry, coral jewelry, ivory jewelry, crystal jewelry, star ruby jewelry, star sapphire jewelry, alexandrite jewelry, aquamarine jewelry, emerald jewelry, chalcedony jewelry, zircon jewelry, pearl jewelry, cubic zirconia jewelry, chrysoberyl jewelry, turquoise jewelry, topaz jewelry, tourmaline jewelry, tiger's-eye jewelry, yellow jade jewelry, black jade jewelry, gold alloy ingots, gold unwrought or beaten, unrefined articles, namely, gold, gold ingots, rhodium, ruthenium, castings of platinum and platinum alloy, unrefined articles, namely, platinum, platinum ingots, platinum alloy ingots, osmium, castings of silver and silver alloy, unrefined articles, namely, silver, silver ingots, silver alloy ingots, iridium, palladium ]
