How to choose the sawing speed?

Posted on Nov 1, 2019

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Band sawing application

In an industrialized society, band sawing machines are widely used in various metal processing. Band saws are mainly used for metalworking and woodworking, but can also be used to cut a variety of other materials.

Advancement making progress

The invention of the band saw machine is a technological leap. Since it has been used and improved for several generations, it has become one of the most widely used machine tool models on the market. Today, band saws are mainly used for metal and wood working, but of course they can also be used to cut other long and hard materials. The main advantage of the band saw machine is that the cutting motion is uniform due to its uniformly distributed tooth load, and it has the ability to cut irregular or curved profiles.

Blade coating matters

The sawing band of the band saw machine is critical to the cutting effect. Since the adoption of bi-metal technology in the 1960s, carbide blades have been used as saw blades. Compared with the past, due to the limitation of blade technology, the cutting efficiency of the band saw machine was limited and rigid.

The band saw blade was once completely made of high carbon steel because it was flexible enough to withstand the winding path around the drive wheel of the band saw machine and the stress generated by the saw blade guide. Therefore, in the old words, it is necessary to use a softer and more flexible substrate. Later, bimetal and carbide band saws changed the band saw industry to a great extent. Since then, advances in tooth shape and geometry have progressed toward greater achievements.

Automatic band saws

Today, almost all band saws are at least driven by electric motors. Line shaft saws were once common in the market, but they have now been eliminated. Automatic band saws often have preset feed speeds, return, descent, part feed and clamping functions. These modern functions collaborate well in the production environment.

Automatic band sawing machine often have preset feed speeds, return, descent, part feed and clamping functions. These modern functions collaborate well in the production environment. Under such production conditions, it is impractical to assign one on-site machine operator for each band saw machine.

In fact, one operator can efficiently feed and unload several automatic band saws. Some automatic band saw machines rely on digital control to make cutting faster and more precise, and even perform more complex bevel cutting. Combining these advantages and needs, most modern metal band saw machines are equipped with CNC controllers to adapt to today's processing requirements and standards.

Major advantages

The major advantages of the band saw machine include: uniform cutting movement due to its uniformly distributed tooth load, and the ability to cut irregular or curved profiles. The minimum radius of the cutting curve is determined by the width of the saw band and the curve. In addition to the radius, the band speed is determined by other major factors, ranging from 0.20 to 25 meters per second.

In certain types of band saw machines, such as custom band saw machines designed for friction cutting of extra-hard metals, they can run at a belt speed of 76 meters per second, thereby increasing productivity.

Since the band saw machine is sawing equipment designed for industrial metal cutting, the band saw machine can also be used for very long work piece cutting tasks, such as cutting construction steel and bar cutting for mechanical workshops. It is recognized that band saws with sensors and other measuring devices can meet higher accuracy requirements and provide better cutting accuracy for mass production models.

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