The invention relates to a method for producing a grinding tool, in which a metal layer (3) is applied to an auxiliary body (7). After separating the metal layer (3) from the auxiliary body (7), the metal layer (3) is fixed to a tool base body. Subsequently, a grinding layer is applied to the metal layer (3). The method allows a simple and economical production of a grinding tool that can be used without restriction in lightweight construction.
B24D 3/06 - Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent and being essentially inorganic metallic
B24D 18/00 - Manufacture of grinding tools, e.g. wheels, not otherwise provided for
The invention relates to a grinding disc (1) comprising a grinding layer (2) which is made of grinding grains (4) bonded together by a binder (3). Reinforcing fabrics (6, 8) are embedded into the grinding layer (2) at outer faces (5, 7) of the grinding layer (2). At least one additional fabric (Wi to W4) is arranged on at least one of the reinforcing fabrics (6, 8), each additional fabric having a respective diameter which is less than the diameter of the reinforcing fabric (6, 8). The at least one additional fabric (Wi to W4) stiffens the grinding disc (1) in a region about a central opening (9) and improves the properties of the grinding disc (1) during rough-machining and/or separation processes.
A grinding tool (1) has a main body (2) with at least one fiber ply (F1, F2) embedded in a binding agent (B). A grinding layer (3) is arranged on the main body (2). The at least one fiber ply (F1, F2) is arranged partially movably in the binding agent (B). In this way, within the main body (2) and within the at least one fiber ply (F1, F2), a relative movement is realized which ensures a high degree of vibration and noise damping.
B24D 3/20 - Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent and being essentially organic
B24B 41/00 - Component parts of grinding machines or devices, such as frames, beds, carriages or headstocks
B24D 7/04 - Wheels in one piece with reinforcing means
B24D 9/08 - Circular back-plates for carrying flexible material
B24D 11/02 - Backings, e.g. foils, webs, mesh fabrics
B24D 18/00 - Manufacture of grinding tools, e.g. wheels, not otherwise provided for
4.
METHOD FOR THE PRODUCTION OF A GRINDING TOOL AND GRINDING TOOL
With a method for the production of a grinding tool, a tool base body is provided, which configures a three-dimensionally shaped adhesive surface by application of a bonding agent. The tool base body is positioned in a way that the adhesive surface is arranged in an electrostatic field, between a first electrode and a second electrode. Into the electrostatic field, abrasive grains are introduced, which, due to the electrostatic field, move towards the adhesive surface and adhere to same. The grinding tool produced in this manner has a three-dimensionally shaped abrasive grain layer. The production of the grinding tool is simple, flexible and economical. The grinding tool has a randomly shaped abrasive grain layer and can be applied in a manifold manner with a high cutting performance and a long service life.
B24D 3/34 - Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents characterised by additives enhancing special physical properties, e.g. wear resistance, electric conductivity, self-cleaning properties
B24D 7/00 - Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting otherwise than only by their periphery, e.g. by the front face; Bushings or mountings therefor
5.
ABRASIVE TOOL AND METHOD FOR PRODUCING AN ABRASIVE TOOL OF THIS KIND
A grinding tool comprises a base on which a plurality of grinding blades (8) is arranged. The grinding blades (8) each include a substrate (16) and abrasive (22) that is bonded to the substrate (16) by means of a binder (23). In order to increase the service life and the total amount of material that is removed, the grinding blades (8) are reinforced by a filler resin (25). Since the grinding blades (8) are reinforced, their cyclic deflection about a zero position caused by workpiece machining operations is reduced, thereby preventing excessive wear of the grinding blades (8).
B24D 13/04 - Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor acting by their periphery comprising a plurality of flaps or strips arranged around the axis
B24D 3/34 - Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents characterised by additives enhancing special physical properties, e.g. wear resistance, electric conductivity, self-cleaning properties
B24D 13/06 - Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor acting by their periphery the flaps or strips being individually attached
B24D 13/16 - Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor acting by the front face comprising pleated flaps or strips
A fan-type grinding wheel which can be driven in rotation in a direction of rotation comprises, on an annular rim region of a support plate, grinding blades which are configured in the form of a triangle. The outer edge of each grinding blade defines a portion of an outer rim of a grinding blade package. The inner edge extends from an inner rim of the grinding blade package to the outer rim. The rear edge is exposed and extends in a leading manner from the inner rim to the outer rim of the grinding blade package -- with respect to a direction of rotation.
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