Abstract

A method of manufacturing an abrasive member (10a, 10), in particular having the general shape of a disc such as a cutting or grinding disc, comprises -arranging a reinforcing insert or reinforcing member (24, 13) into a mold be- tween a layer of curable abrasive resin compound, in particular a layer of cur- able abrasive granulate, a backing member(16)such that at least a section of the reinforcing insert or reinforcing member(24, 13) is in direct physical con- tact with the curable abrasive resin compound,the reinforcing insertor rein- forcing member (24, 13) is at least partially covered by the backing mem- ber (16) and at least a section of the backing member(16) is in direct physical contact with the curable abrasive resin compound; -bonding the reinforcing insertor reinforcing member (24, 13) and the back- ing member(16) by curing the curable abrasive resin compound, wherein the cured abrasive resin compoundforms an abrasive layer(12) of the abrasive member(10).

IPC Classes  ?

• B24D 3/28 - Resins
• B24D 7/04 - Wheels in one piece with reinforcing means
• B24D 18/00 - Manufacture of grinding tools, e.g. wheels, not otherwise provided for

Abstract

A spark suppressor and spark- suppressing rotary abrasive tool having at least one non- smooth spark energy dissipating surface or layer disposed adjacent a spark generating region where there is abrasive contact between a workpiece and rotating abrasive implement of the tool. A preferred spark suppressor is a spark suppressing protective guard for the tool having a spark energy dissipating surface or layer within disposed adjacent to and facing toward the spark generating region. A preferred spark-suppressing rotary abrasive tool is equipped with such a spark-suppressing guard. A preferred spark energy dissipating surface is of three-dimensionally contoured construction having at least a plurality of upraised portions against which sparks generated contact dissipating their momentum and velocity until stopped and retained within the spark suppressor. A preferred spark energy dissipating layer is formed of a plurality of wires or pins that can be entangled to form a porous non-woven spark catching layer.

IPC Classes  ?

• B24B 55/05 - Protective covers for the grinding wheel specially designed for portable grinding machines

Goods & Services

Cleaning, polishing, scouring and abrasive preparations Machines for material working and processing, namely, grinding machines, cutting machines, polishing machines; machine tools, namely, wheels, discs and drills, grinding points, router bits and parts thereof included in this class, namely, strips, rolls and belts Hand tools and implements for material working and processing, namely, grinders, sanders, polishers, drills and drill bits

Goods & Services

Cleaning, polishing, scouring and abrasive preparations. Machines for material working and processing; machine tools and parts thereof, included in this class. Hand tools and implements for material working and processing.