Basic knowledge of diamond grinding wheels

A circular solid grinding tool with through-holes made from diamond abrasive as raw material, using metal powder, resin powder, ceramics, and electroplated metal as binders, is called a diamond grinding wheel.

structure

The structure of diamond grinding wheels generally consists of three parts: the working layer, the substrate, and the transition layer.

The working layer, also known as the diamond layer, is composed of abrasives, binders, and fillers and is the working part of the grinding wheel. The transition layer, also known as the non diamond layer, is composed of a binder, metal powder, and filler, and is the part that firmly connects the diamond layer to the substrate.

The substrate is used to receive the abrasive layer and is firmly clamped onto the grinding machine spindle with a flange during use. Generally, metal bonding products use steel and alloy steel powder as the substrate; The resin binder uses aluminum alloy and bakelite as the substrate. It is processed from aluminum, steel, or bakelite and serves as a support for the working layer and for clamping and grinding tools. The quality of grinding wheel formation and the level of application accuracy are closely related to the substrate.

characteristic

The characteristics of diamond grinding wheels include the type, particle size, concentration, binder, and shape and size of diamond abrasives.

Usage

Due to the characteristics of diamond abrasives (high hardness, high compressive strength, and good wear resistance), diamond grinding tools have become ideal tools for grinding hard and brittle materials and hard alloys in grinding processing. They not only have high efficiency and precision, but also have good roughness, low tool consumption, and long service life. At the same time, they can also improve labor conditions. Therefore, it is widely used in low iron content metal and non-metallic hard brittle materials that are difficult to process with ordinary grinding tools, such as hard alloys, high aluminum ceramics, optical glass, agate gemstones, semiconductor materials, stone materials, etc.

classification

Diamond grinding wheels can be divided into: resin bonded diamond grinding wheels; Ceramic bonded diamond grinding wheel; Metal bonded diamond grinding wheel (bronze bonded diamond grinding wheel)

Diamond grinding wheels can be divided into: sintered diamond grinding wheels (resin bonded diamond grinding wheels; ceramic bonded diamond grinding wheels; metal bonded diamond grinding wheels) according to production processes; Electroplated diamond grinding wheel; Brazed diamond grinding wheel.

Diamond grinding wheels can be divided into: diamond grinding wheels for grinding diamonds; Diamond grinding wheel for grinding hard alloys (diamond knife grinding wheel); Diamond grinding wheel for grinding diamond composite discs; Centerless diamond grinding wheels for coreless grinding machines; Diamond grinding wheels for grinding ceramic products; Diamond grinding wheels (also known as diamond cutting blades) for cutting; Diamond saw blade.

Diamond grinding wheels can be divided into parallel grinding wheels based on their appearance or shape; Cylindrical grinding wheel; Cup shaped grinding wheel; Bowl shaped grinding wheel; Disc shaped grinding wheel; Grinding wheel for edge grinding; Grinding disc, etc.

application

Diamond grinding wheels are used for grinding hard and brittle materials such as glass, ceramics, ferrite, semiconductor materials, and metal materials, as well as for contour processing of hard alloy materials, electrochemical grinding, and heavy load cutting of diamond drill bits used for grinding. They have the characteristics of good grinding resistance, high efficiency, and long service life.

Article source: Diamond grinding wheelhttp://www.jm-nanhua.com