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WO/2021/129513A1 |
A spliced chamfering device, comprising a substrate (1) and a plurality of toothed sheets (2); all of the toothed sheets (2) are fixedly spliced on a side wall of a lower portion of the substrate (1) and form a conical chamfering body, a...
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WO/2021/124601A1 |
This optical glass polishing tool (10) is formed by integrating multiple polishing elements (11) in which polishing grains (12) have been covered with a resin (13), and comprises air cavities (14). The polishing grain volume ratio is 50â...
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WO/2021/121329A1 |
Disclosed is a combined electroplated grinding wheel, comprising a base body (1) and an electroplated part, which can be connected to the base body (1) in a combined manner. The electroplated part does not need to be additionally provide...
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WO/2021/112967A1 |
An abrasive article includes a body having a non-abrasive portion (NAP) essentially free of abrasive particles and an abrasive portion having abrasive particles dispersed within and contained in a bond material.
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WO/2021/038438A1 |
Metal bond abrasive dental bur, comprising a tool head, formed by a plurality of solid layers of a metallic binder material having abrasive particles retained therein, the solid layers being directly bonded to each other. The tool head c...
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WO/2021/037055A1 |
A tool cooling mechanism, comprising a grinding tool (1). The grinding tool (1) is provided therein with a convergence disc (3); the convergence disc (3) sucks external cooling water into the grinding tool (1) as the grinding tool (1) ro...
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WO/2021/039195A1 |
Provided is a gear grinding multilayer-layer grindstone that provides stable grinding accuracy and gear tooth surface roughness after grinding by a finishing grindstone part even in a high-speed rotation range.　This gear grinding multi...
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WO/2021/037745A1 |
The invention relates to a multi-layer circular-disk-shaped abrasive disk 1, comprising at least three substantially flat layers 2, 3 and 4, which comprise an inner layer 2 and two outer layers 3 and 4 directly adjoining the inner layer,...
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WO/2021/039196A1 |
Provided is a double-layer grindstone for gear grinding with which a grinding speed or a grinding efficiency can be achieved without lowering an upper limit of the peripheral speed for grinding, i.e., the fracture peripheral speed. In a ...
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WO/2021/018580A1 |
The invention relates to a grinding tool, in particular a diamond cup wheel, comprising: at least one main body (12a; 12b; 12c; 12d; 12e; 12f; 12g; 2h), which comprises at least one connection region (14a; 14b; 14c; 14d; 14e; 14f; 4g; 14...
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WO/2021/016786A1 |
A grinding wheel sheet (100), comprising a mesh cloth (10) and an abrasive (20) covering the mesh cloth (10). The grinding wheel sheet (100) is provided with a first annular area (1001) located on an outer ring and a second annular area ...
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WO/2021/007924A1 |
A combined grinding wheel for ultrasonic machining and a design method therefor. The combined grinding wheel for ultrasonic machining comprises: an outer layer grinding ring (30), the upper end thereof being provided with a center taper ...
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WO/2021/009673A1 |
A bonded abrasive article is disclosed. The bonded abrasive article has abrasive particles retained within a binder in an active grinding layer. The bonded abrasive article also has an internal reservoir configured to receive a fluid. Th...
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WO/2020/257918A1 |
The present disclosure provides a grinding cup for detachable connection to the output drive shaft of a grinding machine for grinding buttons on drill bits or cutters. The grinding cup has top and bottom surfaces and consists of a lower ...
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WO/2020/249205A1 |
The invention relates to a grinding tool (1) having a replaceable grinding means (4). A grinding layer (9) of the grinding means (4) faces a drive shaft (2) of the grinding tool (1). In this manner, it is possible to grind a workpiece (W...
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WO/2020/234346A1 |
Combined grinding and brushing device that defines an axis of rotation (22) about which the combined grinding and brushing device (10) is rotated during the use thereof, wherein the combined grinding and brushing device (10) has a main b...
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WO/2020/196104A1 |
This cutting tool (40) comprises a shank part (41), and a cutting part (42) provided to one end of the shank part (41). The cutting part (42) has a first region (51) provided to one end of the cutting tool (40), and a second region (52) ...
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WO/2020/196281A1 |
The present invention addresses the problem of providing a method for polishing a target material, whereby it becomes possible to remove a bonding material from the target material and to reduce the clogging in a polishing material.　Th...
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WO/2020/189368A1 |
This grindstone is provided with a plurality of Y-shaped columnar sections (11) that are arranged with a gap therebetween along a processing surface for processing an object to be processed and that extend in a direction intersecting the...
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WO/2020/147922A1 |
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) ...
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WO/2020/136553A1 |
Object: To provide a grinding wheel and a method of manufacturing a grinding wheel having added value while providing a suppressed manufacturing cost. Solution Means: The grinding wheel is a grinding wheel including an abrasive portion i...
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WO/2020/128950A1 |
The present invention relates to an attachment hub for attachment to a sander, comprising a quick-release attachment assembly configured for releasable and aligned engagement with a counterpart of a backup pad particularly for an abrasiv...
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WO/2020/128781A1 |
The present disclosure provides improved rail grinding tools. Precision-shaped grains (PSGs), such as PSGs manufactured by 3M® company, provide significant performance improvement in resin-bond and vitrified bond grinding wheels. The us...
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WO/2020/126091A1 |
The invention relates to a machining segment (41), which is composed of a first matrix material (44) and first hard material particles (45), the first hard material particles (45) being arranged in the first matrix material (44) accordin...
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WO/2020/128780A1 |
According to various embodiment of the present disclosure, a bonded abrasive article precursor includes a curable composition. The curable composition includes a curative component. The curable composition further includes one or more re...
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WO/2020/128717A1 |
An abrasive article and method of forming abrasive articles are shown. Examples include first level patterns of abrasive particles, and second, higher level patterns of abrasive particles. Examples include gaps that may serve any of a nu...
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WO/2020/123203A1 |
A grinding wheel and methods of manufacturing the same. The grinding wheel includes a core region extending around a central axis and a grinding region circumferentially surrounding the core region. The grinding wheel also includes at le...
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WO/2020/115640A1 |
The invention relates to an abrasive article comprising a carrier body as well as an abrasive layer, wherein the abrasive layer comprises agglomerates with superabrasive particles bound in a first vitrified bond (bond I) as well as a sec...
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WO/2020/098852A2 |
The invention relates to a disk-shaped cutting tool (1), to a radial cutting method for machining axially elongate workpieces, to a cutting device and to a use of a disk-shaped cutting tool. A disk-shaped cutting tool according to the in...
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WO/2020/099969A1 |
A coated abrasive belt includes an endless belt backing and an abrasive layer disposed thereon. The abrasive layer comprises abrasive elements secured to at least a portion of a major surface of the belt backing by at least one binder ma...
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WO/2020/094500A1 |
The invention relates to a machining disc, and a method for producing same, for machining materials and in particular for machining light metals, non-ferrous metals, plastics and wood, said machining disc having an essentially circular o...
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WO/2020/084379A1 |
A hooking device (10) for working tools for flat glass sheets or flat crystal glass sheets, mirror glass sheets, or also flat marble, granite and similar stone material slabs, comprised of a first component and of a second component that...
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WO/2020/086565A1 |
An attachment for a drill comprises a shank with a chuck configured to mount the attachment to the drill. A housing on the shank comprises a threaded end and a hollow chamber. A compression bladder having a tubular opening through it is ...
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WO/2020/078563A1 |
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...
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WO/2020/081906A1 |
An abrasive tool comprises an arbor having a body formed with an internal bore, a mounting plate disposed on the arbor, a cover plate, an abrasive article disposed between the mounting plate and the cover plate, and at least one internal...
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WO/2020/070598A1 |
The disclosure provides abrasive rotary tools with enhanced adhesion of an abrasive layer. Exemplary abrasive rotary tools include a securing element configured to secure an abrasive layer to an abrasive rotary tool. The securing element...
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WO/2020/065687A1 |
A multi-spindle operating head comprises a central structure (10) rotating orthogonally to a work plane and supporting a plurality of electro spindles distributed on a circumference with the same angular distance, the rotation axis of ea...
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WO/2020/044158A1 |
A bonded abrasive wheel is disclosed comprising a plurality of abrasive particles disposed in a binder, a first grinding surface, a second surface opposing the first grinding surface, and an outer circumference. The wheel comprises a rot...
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WO/2020/018018A1 |
A polishing tool comprising: a rubber pad provided with a number of channels; and a corresponding number of stiffeners receivable in the channels to slidably engage the channels; wherein increase in length of the stiffeners in the channe...
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WO/2020/004372A1 |
Provided is a bar for forming occlusal surfaces with which occlusal surfaces can be easily formed in identical shapes during the formation of an anchor tooth. This bar (10) which is for forming occlusal surfaces and used in the formation...
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WO/2020/004370A1 |
Provided is a bar for forming a central fovea with which the vicinity of the central fovea can be accurately polished to the necessary depth when forming an anchor tooth. This bar (10) which is for forming a central fovea and is used in ...
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WO/2019/229610A1 |
The disclosure provides abrasive rotary tools with replaceability and improved contact pressure. Exemplary abrasive rotary tools include an abrasive assembly holder, an abrasive assembly, and an elastic layer. The abrasive assembly inclu...
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WO/2019/220373A1 |
The invention relates to a grinding wheel for the material-removing machining of at least one workpiece, preferably a grinding wheel for the simultaneous material-removing machining of at least two flat workpieces, wherein the grinding w...
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WO/2019/222193A1 |
An abrasive article is disclosed and can include a core comprising a polymer material. The core can include an upper surface, an outer peripheral surface, an upper recessed portion extending into the core from the upper surface and a per...
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WO/2019/194732A1 |
A transmission arrangement (113) comprising a first axle (24) that is rotatable about a first axis (33) and is connected to a first pulley (25) that is arranged to drive an endless power transferring means (26) that further is adapted to...
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WO/2019/179847A1 |
The invention relates to a holding apparatus (1) for a rotating, circular tool (2), such as a grinding or cut-off wheel, containing a circular holding element (3) for removably connecting the tool (2) to the holding apparatus (1) and a c...
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WO/2019/179964A1 |
The invention relates to a connecting device comprising a positive connecting element and a negative connecting element, wherein the positive connecting element has an elevation arranged on a base surface and the negative connecting elem...
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WO/2019/180873A1 |
This end mill has a shank and a cutting edge section. The shank has a coolant supply path. The cutting edge section covers an outlet of the coolant supply path and is provided on the shank. The cutting edge section is configured by a por...
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WO/2019/174581A1 |
A polishing device, comprising a plurality of elastic sheet gears (2), a substrate (1) having an annular structure, and a pressing plate (3). The plurality of elastic sheet gears (2) are sequentially spliced and stacked to form an annula...
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WO/2019/174580A1 |
An abrasive tool and a fabrication method therefor, comprising: a plurality of thin teeth (2), the plurality of thin teeth (2) being stacked in sequence to form a circular structure, wherein two adjacent thin teeth (2) are fixedly connec...
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