The History of Band Sawing and Its Innovative Ideas

Posted on Nov 8, 2019

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Terminology
Band sawing is a common usage of sawing method in the metalworking sector, which, by definition, is also called as bandsaw as a compound word in the metalworking sector. Band sawing machine is a powered sawing machine with a long and sharp blades consisting of a continuous band of toothed material stretched between wheels to cut the targeted work pieces.

Invention of band sawing

In the history of humanity, the invention of band sawing machinery could be recognized as a technology leap, and since that, band sawing has been used and improved for several generations and has become one of the most widely applied machine tool models with the broadest variety in the market.

Nowadays, the usages of band sawing machines are particularly in metalworking, woodworking, and lumbering, but they can also be applied to cut a variety of other hard materials with lengthy body. The major advantages of band sawing machines include uniform cutting movement due to its evenly distributed tooth loads, and the capability to cut irregular or curved profiles. Band saw machines are used particularly in metalworking, woodworking, and lumbering, but can also be used to cut a variety of other materials. The primary advantages of band saw machines include uniform cutting movement as a result of an evenly distributed tooth loads, and the capability to cut irregular or curved shapes.

Estimation of radius

Saws and work pieces are two pairing variables. The minimal radius of a curve is determined by the width of the saw band and the curves. Most bandsaw machines have two wheels rotating in the same plane, while one of which is powered; besides, some may have three or four to distribute the load so that the machine is with improved even distribution. In regard to the sawing issue, the blade of a band saw machine can come in a variety of tooth pitches and size scales, which enables the band saw machines to be with high versatility, and is capable of sawing a broad variety of raw materials such as wood, metal and plastics.

Power source and operation

Today, almost all band saws nowadays are powered by at least an electric motor while line shaft versions were once common in the market but are now antiques. Moreover, As programmed mechanics, automated band sawing features the preset feeding rate, returning, falling, part feeding, and clamping systems. These modern features are well cooperated in the production environment in which if there is only one equipment operator per saw, then the manufacturing model is considered not practical at all.

Modern band sawing tasks request that each operator to feed and unload many automatic band saw machines as they can. Some automatic band saws are based on numerical control to not only cut faster, but to be more accurate. This kind of design and edition grants better repeatability. Therefore, if put the two sawing machineries into comparison, the primary advantages of band saw machines include uniform cutting movement as a result of an evenly distributed tooth loads, and the capability to cut irregular or curved shapes like a jigsaw. Speaking of the curve scales, the minimal radius of a curve is decided by the width of the saw band and the curves.

Besides the radius, the speed of the band is also decided by other major considerations, which ranges from around 0.20 meters per second to 25 meters per second. In some specific band sawing models such as customized band saw machines which are designed for friction cutting of extra-hard metals, those kinds of machines can run its band speeds around 76 meters per second, granting a large productivity. Since the band saws machines are sawing equipment that are designed for industrial metal-cutting use, here are some of the metalworking usages.

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