Circular saw blade in the use of the process of failure how to deal with?
Circular saw factory after-sales for your answer.
At about 12 o 'clock last night, Wanli circular saw machine after-sales department received a problem reflected by a Spanish customer, the saw blade/tool of the metal circular saw machine high-speed metal cutting machine was heated during the use of the situation, the customer is more anxious, we sorted out an analysis of the reason and relevant solutions overnight for your reference. Saw blade heating may be caused by a variety of factors, such as the saw blade itself, the operation mode, material characteristics, equipment status, and so on, please see the details.
A. Problems: Common causes of saw blade heat
1. Improper choice of saw blade
Saw blade material does not match the material to be cut (such as cutting hard metal without using carbide saw blade). Too many teeth of the saw blade (poor chip removal) or too little (low cutting efficiency), the diameter or thickness of the saw blade does not match the thickness of the material, resulting in increased friction.
2. Device parameters are incorrectly set
Excessive speed or too slow feed speed, resulting in prolonged friction time. The feed speed is too fast, causing the saw blade to overload cutting.
3. Insufficient cooling/lubrication
Coolant flow is insufficient, nozzles are blocked, or special cutting fluids are not used. No cooling measures are taken during dry cutting (such as air cooling or intermittent cutting).
4. Saw blade installation problem
Saw blade installation is not stable, flange clamping force is uneven, resulting in deflection or vibration. Saw blade and equipment spindle different center, resulting in rotation imbalance.
5. Material issues
The metal circular saw machine is cutting materials with too high hardness (such as high carbon steel, stainless steel) or containing impurities (such as sand holes, oxide layers). The material is not firmly fixed, and vibration increases friction during cutting.
6. Saw blade worn or damaged
High speed circular saw machine saw blade passivation, tooth collapse or tooth tip wear, resulting in increased cutting resistance. Saw blade surface attached chip (chip tumor), affecting heat dissipation.
7. Equipment mechanical failure
Spindle bearing wear, resulting in unstable saw blade rotation. The transmission system (belt, gear) is loose or aging, resulting in uneven power transmission.
Prevention recommendations
1. Regular maintenance: Check the cooling system, blade wear and equipment stability of the high-speed circular saw machine every week.
2. Operation training: Ensure that the operator of the disk saw machine is familiar with the parameter setting and saw blade replacement process.
3. Use high-quality consumables: Choose circular saw brand blades and special cutting fluids.
B. Solutions and preventive measures
One. Correct choice of saw blade
1. Material matching: Select saw blade according to material hardness (such as carbide saw blade for stainless steel).
2. Optimization of the number of teeth: choose fewer teeth for thick materials (good chip removal), and choose more teeth for thin materials (smooth cutting).
3. Regular replacement: Timely replacement of the saw blade worn or broken teeth.
Two. Adjust device parameters
1. Reduce speed: Hard materials need to reduce speed to reduce friction heat.
2. Control feed speed: Adjust feed according to material thickness to avoid overload or too long friction time.
3. Refer to the manufacturer's suggestion: Set parameters according to the circular saw blade and equipment manual.
Three. Ensure adequate cooling/lubrication
1. Check the cooling system: clean the nozzle blockage and use enough cutting fluid (water-soluble or oil-based).
2. Dry cutting treatment: If coolant cannot be used, intermittent cutting or air cooling can be used for heat dissipation.
Four. Standard installation and maintenance
1. Tighten the saw blade: Ensure that the clamping force of the flange on the cutting tool of the metal cutting machine is uniform, and check the concentricity of the saw blade after installation.
2. Regular maintenance: clean the saw blade surface of the round rod cutting machine, check the spindle bearing and transmission parts.
Five. Optimize the cutting process
1. Material pretreatment: Anneal high hardness material, or use a special circular saw blade.
2. Stable clamping: Use the fixture of the stainless steel cutting machine to fix the material and reduce vibration.
Six. Rectify device faults
1. Check the spindle and bearing: replace the worn bearing and calibrate the spindle concentricity.
2. Maintain the transmission system: adjust the belt tension or replace the aging parts.
Emergency treatment steps
1. Stop immediately: When the saw blade of the circular saw machine is found to be overheated, stop cutting to avoid burning the saw blade or damaging the equipment.
2. Check the state of the coolant and saw blade: clean the chips and add the coolant.
3. Manual cooling: Check the wear condition after the tool/saw blade is cooled, and replace it if necessary.
Through the above measures, can effectively reduce the high speed metal circular saw blade heating problem, extend the life of metal circular saw and improve cutting efficiency. If the problem persists, it is recommended to contact us Wanli precision circular saw machine manufacturers for professional maintenance.
