What is the cause of cracks in the band saw blade?


When using a band saw machine in normal times, especial […]

When using a band saw machine in normal times, especially small cracks are generated on the tooth back and the bottom of the tooth groove of the saw blade. If the crack expands to a certain extent, the saw blade is easy to break. Then, what is the reason for the crack of the band saw blade? have a look.

The front edge of the saw blade is cracked, which is mainly caused by the impact and friction in the process of sawing wood to tear the tooth bottom, and the long-term stretching, impact and friction of the saw blade will cause the saw blade to fatigue and cause cracks. There is also a mistake that many people often make. After the saw blade is used for a long time, the tooth edge will become blunt. If you continue to use it without grinding, it is easy to cause the saw blade to crack. Excessive rolling of the saw blade damages the quality of the saw blade, and the toughness and elasticity are not up to the requirements, and it is easy to crack or break the blade.

Everyone knows that the tensioning device on the band saw is a device that automatically keeps the saw blade properly tensioned. If the tensioning device fails or is dull, it has no protective effect on the saw blade, and it is easy to crack and damage the saw blade.

The lack of cooling water will also affect the use of the saw blade. The saw blade will heat up due to friction during sawing. If it cannot be cooled in time, the saw blade will be deformed by heat, reduce its rigidity, and accelerate fatigue and cracking. The cooling water not only cools the saw blade, but also washes away the sawdust or other impurities on the saw blade, which protects the saw blade.

The new saw blade must be run-in before sawing the wood, so that the saw teeth are naturally worn and the burrs on the tooth edges are removed, which can prevent the saw teeth from chipping and curling.