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. The bonded abrasive article also has a feature configured to change a property of the fluid. The bonded abrasive article also has a delivery feature configured to deliver to fluid to a contact zone.

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. The bonded abrasive article also has a feature configured to change a property of the fluid. The bonded abrasive article also has a delivery feature configured to deliver to fluid to a contact zone.

A grinding tool and a manufacturing method thereof are disclosed. The grinding tool includes a plurality of thin teeth (2) which are sequentially spliced and stacked to form an annular structure, wherein every two adjacent thin teeth (2) are fixedly connected, and a groove body (4) is formed between every two adjacent thin teeth (2). The narrower and the more the groove bodies of the grinding tool are, the better the cooling effect is, thus the better the chip-removal effect is. Meanwhile, the manufacturing method for the grinding tool features a machining process having low difficulty and is easy for mass production, thereby facilitating the high-speed and high-efficiency machining of grinding tools with an organic bond and an inorganic bond.

A grinding wheel for grinding a workpiece containing a ductile material, the grinding wheel including an annular wheel base having a fixed end adapted to be fixed to a lower end of a spindle and having a free end adapted to face the workpiece to be ground, and a plurality of grindstones each shaped as a rectangular plate, disposed on the free end of the annular wheel base, and arrayed at predetermined intervals with respective longer sides disposed along circumferential directions of the wheel base. Each of the grindstones includes an electroformed grindstone shaped as a rectangular plate and made up of abrasive grains secured together by nickel plating, and has a thickness of 1 mm or smaller and a value ranging from 5 inclusive to 35 exclusive that is represented by a ratio of a height from the free end to the thickness.

A grinding wheel for grinding a workpiece containing a ductile material, the grinding wheel including an annular wheel base having a fixed end adapted to be fixed to a lower end of a spindle and having a free end adapted to face the workpiece to be ground, and a plurality of grindstones each shaped as a rectangular plate, disposed on the free end of the annular wheel base, and arrayed at predetermined intervals with respective longer sides disposed along circumferential directions of the wheel base. Each of the grindstones includes an electroformed grindstone shaped as a rectangular plate and made up of abrasive grains secured together by nickel plating, and has a thickness of 1 mm or smaller and a value ranging from 5 inclusive to 35 exclusive that is represented by a ratio of a height from the free end to the thickness.

The present disclosure provides methods of making a vitreous bond abrasive article and a metal bond abrasive article. The methods include sequential steps. Step a) includes a subprocess including sequentially: i) depositing a layer of loose powder particles in a confined region; and ii) selectively applying heat via conduction or irradiation, to heat treat an area of the layer of loose powder particles. The loose powder particles include abrasive particles and organic compound particles, as well as vitreous bond precursor particles or metal particles. The layer of loose powder particles has substantially uniform thickness. Step b) includes independently carrying out step a) a number of times to generate an abrasive article preform comprising the bonded powder particles and remaining loose powder particles. Step c) includes separating remaining loose powder particles from the abrasive article preform. Step d) includes heating the abrasive article preform to provide the vitreous bond abrasive article comprising the abrasive particles retained in a vitreous bond material, or to provide the metal bond abrasive article. A method of making a metal bond abrasive optionally includes infusing an abrasive article preform with a molten lower melting metal and solidifying the molten lower melting metal to provide the metal bond abrasive article. The present disclosure further provides a vitreous bond abrasive article precursor and a metal bond abrasive article precursor. Also, methods including receiving, by a manufacturing device having a processor, a digital object specifying data for an abrasive article, and generating the abrasive article with the manufacturing device.

The present disclosure provides methods of making a vitreous bond abrasive article and a metal bond abrasive article. The methods include sequential steps. Step a) includes a subprocess including sequentially: i) depositing a layer of loose powder particles in a confined region; and ii) selectively applying heat via conduction or irradiation, to heat treat an area of the layer of loose powder particles. The loose powder particles include abrasive particles and organic compound particles, as well as vitreous bond precursor particles or metal particles. The layer of loose powder particles has substantially uniform thickness. Step b) includes independently carrying out step a) a number of times to generate an abrasive article preform comprising the bonded powder particles and remaining loose powder particles. Step c) includes separating remaining loose powder particles from the abrasive article preform. Step d) includes heating the abrasive article preform to provide the vitreous bond abrasive article comprising the abrasive particles retained in a vitreous bond material, or to provide the metal bond abrasive article. A method of making a metal bond abrasive optionally includes infusing an abrasive article preform with a molten lower melting metal and solidifying the molten lower melting metal to provide the metal bond abrasive article. The present disclosure further provides a vitreous bond abrasive article precursor and a metal bond abrasive article precursor. Also, methods including receiving, by a manufacturing device having a processor, a digital object specifying data for an abrasive article, and generating the abrasive article with the manufacturing device.

A cooling structure of a high-speed cup-shaped wheel includes a base and a blade ring. The blade ring is arranged on the base and is fixedly connected to the base. The blade ring is provided with a plurality of water channel groups, which is sequentially arranged at intervals in a circumferential direction of the blade ring. Each of the water channel groups includes two or more inner water channels, which are sequentially arranged at intervals in the circumferential direction of the blade ring, and the width of each of the two or more inner water channels in a radial direction of the blade ring is gradually increased. The cooling structure allows cooling water to cover the entire working surface to improve the cooling efficiency for the working surface and also to effectively improve the utilization efficiency of the cooling water.

A diamond special-shaped grinding wheel includes an upper base body, a lower base body, and a grinding ring. The upper base body is disposed at the upper end of the lower base body, and the upper base body and the lower base body are fixedly connected to form a grinding wheel body. The grinding ring is fixed to an outer ring of the grinding wheel body; the grinding wheel body is internally provided with one or two annular grooves communicated with the upper end face of the grinding wheel body. A plurality of mixed flow channels is formed in the grinding ring. One end of each mixed flow channel extends to an annular grinding opening of the grinding ring, the other end is communicated with one annular groove, and the annular grooves are communicated with an external negative pressure air source device. Also disclosed is a vertical machining cooling system.

A diamond special-shaped grinding wheel includes an upper base body, a lower base body, and a grinding ring. The upper base body is disposed at the upper end of the lower base body, and the upper base body and the lower base body are fixedly connected to form a grinding wheel body. The grinding ring is fixed to an outer ring of the grinding wheel body; the grinding wheel body is internally provided with one or two annular grooves communicated with the upper end face of the grinding wheel body. A plurality of mixed flow channels is formed in the grinding ring. One end of each mixed flow channel extends to an annular grinding opening of the grinding ring, the other end is communicated with one annular groove, and the annular grooves are communicated with an external negative pressure air source device. Also disclosed is a vertical machining cooling system.