Grinding saw blades mainly uses the back side of the grinding teeth and the front side of the grinding teeth as the pavement. When the grinding tool moves back and forth, keep the working surface of the grinding tool moving parallel.

1. The grinding is mainly done on the back and front of the teeth. Tooth surfaces without special requirements will not be sharpened.

2. After grinding, the conditions for the front and rear angles to remain unchanged are: the angle between the grinding wheel working surface and the front and rear tooth surfaces to be sharpened is equal to the grinding angle, and the distance movement amount from the grinding wheel is equal to the grinding amount. Make the working surface of the grinding wheel parallel to the tooth surface to be ground, then touch it lightly, then make the working surface of the grinding wheel leave the tooth surface, and then adjust the working surface angle of the grinding wheel as needed. Grind the angle, and finally make the working surface of the grinding wheel contact the tooth surface.

3. The grinding depth during rough grinding is 0.01-0.05mm; the recommended feed speed is 1-2 m/min.

4. Manual fine grinding of saw teeth. After the blade has a small amount of wear and debris, use a silicon chloride grinding wheel to grind the saw teeth. When grinding is still needed, use a hand grinder to finely grind the saw teeth to make the blade sharper. When fine grinding, the force must be uniform, and when the grinding tool moves back and forth, the working surface of the grinding tool must move parallel. Grind the same amount to ensure all tooth tips are on the same plane.

Things to note when sharpening saw blades:

1. Before grinding, the resin, debris and other debris attached to the saw blade must be removed.

2. Grinding should be carried out strictly according to the original geometric design angle of the saw blade to avoid damage to the tool due to improper grinding. It can only be put into use after polishing and inspection to avoid personal injury.

3. If manual sharpening equipment is used, a precision limit device is required to detect the tooth surface and tooth top of the saw blade.

4. When grinding, special coolant should be used for lubrication and cooling, otherwise it will reduce the service life of the tool and even cause internal cracking of the alloy tool head, making it dangerous to use.