Basic knowledge of shredder blades

The geometric parameters of the cutting part of the shredder blade have a significant impact on the cutting efficiency and processing quality. Increasing the rake angle can reduce the plastic deformation of the cutting layer when the rake face is squeezed, reduce the frictional resistance of the chip flowing through the front, and thus reduce the cutting force and cutting heat. But increasing the rake angle will also reduce the strength of the cutting edge and reduce the heat dissipation volume of the cutting head.

The working part of the shredder blade is the part that generates and processes chips, including the blade, the structure that breaks or folds the chips, the space for chip removal or storage, and the channel for cutting fluid. The working part of some blades is the cutting part, such as turning tools, planers, boring cutters, and milling cutters; The working part of some blades includes cutting and calibration parts, such as drills, reamers, internal surface broaches, and taps. The function of the cutting part is to remove chips with the blade, while the function of the calibration part is to smooth the machined surface that has been cut and guide the crusher blade.

There are three types of structures for the working part of the shredder blade: integral, welded, and mechanically clamped. The overall structure is to make cutting edges on the tool body; The welding structure is to braze the blade onto the steel blade body; There are two types of mechanical clamping structures, one is to clamp the blade onto the blade body, and the other is to clamp the brazed blade onto the blade body. Hard alloy blades are generally made into welded or mechanically clamped structures; The blades of the porcelain crusher adopt a mechanical clamping structure.