Basic knowledge of crusher blade

The geometric parameters of the cutting part of the crusher blade have a great influence on the cutting efficiency and processing quality. Increasing the rake angle can reduce the plastic deformation when the rake face extrudes the cutting layer, reduce the friction resistance when the chip flows through the front, and thus reduce the cutting force and cutting heat. However, increasing the rake angle will reduce the strength of the cutting edge and the heat dissipation volume of the tool 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, the channel for cutting fluid and other structural elements. The working part of some blades is the cutting part, such as turning tools, planers, boring cutters and milling cutters; Some blades include cutting part and calibration part, such as drill, reamer, reamer, internal surface broach and tap. The cutting part is used to cut the chips with the blade, and the calibration part is used to polish the machined surface and guide the crusher blade.

The structure of the working part of the crusher blade has three types: integral type, welding type and mechanical clamping type. The overall structure is to make a cutting edge on the tool body; The welding structure is to braze the blade to the steel blade body; There are two kinds of mechanical clamping structures, one is to clamp the blade on the cutter body, the other is to clamp the brazed cutter head on the cutter body. The cemented carbide blade is generally made of welded structure or mechanically clamped structure; The ceramic crusher blades are mechanically clamped.