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Posted on Aug 30, 20190
Contrary to the method of a circular sawing machine, a band sawing machine is utilized particularly in metalworking, woodworking, and lumbering, and horizontal band saws have the work piece clamped while the sawing blade swings down through the cutting. This design configuration is used to cut long materials such as tube or solid bar stock to length. Accordingly, it is a crucial procedure of the equipment in most machine shops.
Circular sawing machine utilizes circular tools to conduct sawing procedure rather than sawing bands to achieve the cutting mechanism, which leads to other machining features that is different from band sawing methodology. Normally, a circular saw is a powered saw that uses a toothed or abrasive disc set or blade to cut different materials by a rotary motion spinning around an arbor. Similarly, a hole saw and ring saw also use a rotary motion but are different from a circular saw. To be precise, circular sawing machines may also be loosely used for the blade itself.
Circular sawing machines were invented in the late 18th century and were in common use in sawmills in the United States by the middle of the 19th century due to the growth of industry over agricultural sectors in the states then. A circular saw is a machining tool for cutting many materials such as wood, masonry, plastic, or metal. Circular sawing machines may be hand-held or mounted to a machine. Great versatility is one of the main features of this type of saw.
The term "circular saw" refers specifically to the hand-held type and the table saw, meanwhile, chop saw is also an another conventional forms of circular saws in the industrial sector of woodworking. Besides, the terms "Skilsaw" and "Stihl saw" have also become generic trademarks for conventional hand-held circular saws in the market of sawing machines.
Circular saw blades are specially designed for each particular material they are intended to saw due to the machining specific demands. And in the sector of woodworking, there are specifically designed objects for making rip-cuts, cross-cuts, or a combination of both in order to best achieve the targeted cutting tasks.
Back to the band sawing machinery, it is noticeable that the curve scales of the band saw are important for the sawing performance. The minimal radius of a curve is determined by the width of the saw band and the curves.
Most band sawing machines are designed with two wheels rotating in the same plane, and one of which is powered; besides, some may have three or four to distribute the load. Curve scales shall be considered when operators are choosing their sawing tools based on the work piece types. Besides the curve scale, there are other issues that affect the sawing results.
One of them is the blade of a band saw machine, which can come in a variety of tooth pitches and size scales, and that will enable the band saw machines to become with greater versatility, and be able to cut a broad variety of raw materials such as wood, metal and plastics. Almost all band saws today are power-driven by at least an electric motor while line shaft versions were once common in the market.
The genuine inventions usually comes along with market demands as always. The inception of band sawing can be dated back to the 19th century. It was William Newberry who had received a British patent for the idea, however, band saws remained impractical basically due to the inability to the fact that it was hard to produce accurate and durable cutting blades using the technology back then, because continual flexing of the blades over the wheels will make the material to fail.
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