The band saw blade industry encompasses manufacturers and suppliers specializing in the production of continuous bands of toothed metal used for cutting various materials. These blades are essential components of band saws, a type of power saw with a long, sharp blade consisting of a continuous band of toothed metal stretched between two or more wheels. Band saw blades are designed for a diverse range of applications, including woodworking, metalworking, and meat processing. The industry has seen innovations in blade materials and tooth designs to enhance performance, durability, and precision. Key factors influencing the sector include advancements in material science, the evolving needs of end-users, and the integration of automation in manufacturing processes.
Many first time blade buyers will have the question, "How long is the life of a band saw blade? As the service life of a band saw blade depends on many factors, there is no specific answer to this question. Mainly in the following four aspects:
1. The nature of the cutting material, the hardness of the material and the impurity content of the material will affect the service life. For example, the hardness of the cutting material is large, so the time it is used is relatively short. On the contrary, the hardness of the cutting material is small, and the service life is longer.
2. The setting of cutting parameters, the cutting speed and feed speed, and the tension of the saw blade will affect the service life of the saw blade.
3. The condition of the sawing machine equipment, the accuracy of the equipment and the maintenance of the equipment will also affect the service life of the saw blade.
4. The quality and brand of the band saw blade, the service life of the good quality band saw blade will be longer.
The correct use of band saw blade can improve the service life, mainly paying attention to the following aspects:
Cutting belt speed
The speed of sawing aluminum and aluminum alloy bands is maintained at 79-110 m/min
When sawing copper alloy materials, the workpiece materials are mainly:
Copper band saw speed maintained 47-80 m/min
Brass, white copper band saw speed maintained 50-70 m/min
Bronze band saw speed maintained 47-67 m/min
When sawing carbon steel materials, the workpiece materials are mainly:
Low carbon steel, free cutting steel band saw speed maintained at 69-80 m/min
Medium carbon steel band saw speed maintained at 60-75 m/min
High carbon steel band saw speed maintained at 4-59 m/min
Saw fit gold structural steel, band saw speed maintained 47-69 m/min
Sawing abrasive steel, bearing steel, band saw speed maintain 30-59 m/min
When sawing tool steel, the workpiece materials include:
Tool steel band saw speed maintained 30-59 m/min
High-speed tool steel, cold working tool steel band saw speed maintained 30-40 meters/min
When sawing stainless steel, the band saw speed is maintained at 25-39 m/min
When sawing hardened stainless steel, the band saw speed is maintained at 11-24 m/min
When sawing cast iron, the band saw speed is maintained at 29-69 m/min
When sawing titanium alloys, the band saw speed is maintained at 10-29 m/min
When sawing nickel alloys, the band saw speed is maintained at 12-29 m/min
Attention:
The materials shown above all take 20HRC (225HB) as an example. When the material hardness is 30HRC (283HB). Adjust the speed to 70% of the above speed. When the hardness is 35HRC (330HB), the speed is adjusted to 60% of the above speed.
The material dimensions shown above are all 100mm. If the size is 60mm, it can be raised by 5%, if the size is 200mm, it can be lowered by 10%.
The above are recommended speeds for bimetal band saw blades. If carbide band saw blade is used, the speed can be adjusted. The data are all recommended belt speed, the actual situation will be affected by external conditions such as the sawing machine condition and actual working conditions.
Running-in
A saw blade with no running-in or poorly running-in is 1/3 or less of the service life of a well-running-in saw blade. This is because the new unused saw blade, the saw blade is very sharp, if the new saw blade has just started to use high sawing speed and high feed rate cutting, the impact of the workpiece on the tip of the tooth will lead to minor damage between the teeth. The loss of tooth tip caused by non-wear will cause severe early wear of tooth tip, oblique cutting, tooth collapse, etc., resulting in early failure of the saw blade, which will greatly reduce the service life of the saw blade. Therefore, we strongly recommend that you use the right way to break in the saw blade when using a new saw blade.
The service life of the band saw blade has a lot to do with the correct run-in when the band saw blade begins to use.
The following running-in conditions are appropriate: after determining the normal cutting speed and the correct number of teeth, the sawing is started with 70% of the normal cutting speed and 50% of the normal feed. After sawing an area of about 400 to 600cm², it gradually rises to normal speed and feed.
Guide arm
The guide arm should be as close to the workpiece as possible. On the one hand, the vibration during sawing is reduced, the saw blade runs more smoothly, the sawing precision and the flatness of the sawing surface can be effectively improved; The other side increases the distance between the guide arm and the saw wheel, reduces the torsional stress of the saw blade, and can increase the fatigue life of the saw blade.
The worn guide block will cause serious damage to the saw blade, which will cause the saw blade to break and greatly reduce the service life. Therefore, we recommend that you check guide block wear regularly and replace it in time.
Wire brush
If the wire brush cannot effectively remove the sticky iron filings on the saw blade, it is necessary to adjust or replace the wire brush in time.
Saw wheel
If the saw wheel wear seriously, it will have a serious impact on the life of the saw blade. Therefore, it is necessary to check the wear of the saw wheel regularly. Remove any sawdust that remains around the saw wheel.
Saw blade tension
Saw blade tension is too small, will lead to the saw blade running is not smooth, aggravate the saw blade vibration, and it is easy to cause oblique. Saw blade tension is too large, and will greatly reduce the fatigue life of the saw blade, so that the saw blade is very easy to crack. Choosing the right blade tension can not only ensure smooth cutting and reduce vibration, but also ensure the fatigue life of the saw blade and reduce the chance of the saw blade cracking. We recommend a SAWTX tension tester or a 300N/mm2 blade tension.
Workpiece
Ensure that the workpiece clamping, on the one hand can greatly reduce the vibration of sawing to ensure smooth sawing, on the other hand can reduce the occurrence of oblique phenomenon. Especially for bundles or bundles of workpieces, it is necessary to ensure three-way clamping.
Cutting fluid
Choosing high-quality cutting fluid and using it correctly can effectively reduce cutting force, reduce cutting temperature, take away sawdust to protect the band saw blade, and greatly improve the service life of the band saw blade. We recommend that you ensure proper circulation of cutting fluid and adequate flow of cutting fluid into the incision when sawing.
In short, in order to extend the service life, we need to choose the right saw blade, set the correct cutting parameters and ensure the good condition of the equipment, and carry out reasonable maintenance and maintenance!
The operation method of the operator will also have an impact on the service life of the band saw blade. Incorrect operation methods, such as forced cutting, overload use, and not timely cleaning of sawdust, will shorten the service life of the band saw blade.
The state of the saw machine also affects the service life of the band saw blade. The guide rail of the sawing machine is not smooth, the clamping device is not firm, and the transmission system is unstable, which will lead to vibration and deviation of the band saw blade during the cutting process, and increase the wear and damage of the serration.
Regular maintenance and maintenance of the sawing machine, check the smoothness of the guide rail, the reliability of the clamping device, the accuracy of the transmission system, etc., to ensure that the sawing machine is in good working condition.
Operators should receive professional training and master the correct operation methods. During the cutting process, the working state of the saw blade should be observed and the cutting parameters should be adjusted in time. After the cutting is completed, the sawdust should be cleaned in time to keep the sawing machine clean.
In summary, the service life of the band saw blade is affected by many factors. When using the band saw blade, the product of reliable quality should be selected, the cutting parameters should be set reasonably according to the cutting materials and processing requirements, the good state of the sawing machine should be maintained, and the correct operation method should be adopted to extend the service life of the band saw blade, improve production efficiency and reduce costs.
