Bandsaw Machine & Metalworking

Posted on Jul 19, 2019

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There are mainly two kinds of sawing machines in the industrial market: band sawing machine and circular sawing machine. Unlike band sawing machine, circular sawing machine utilizes circular tools to process sawing procedure rather than sawing bands to achieve the cutting mechanism, which leads to other machining features that is different from band sawing mechanism.

There are mainly two kinds of sawing machines in the industrial market: band sawing machine and circular sawing machine. Unlike band sawing machine, circular sawing machine utilizes circular tools to process sawing procedure rather than sawing bands to achieve the cutting mechanism, which leads to other machining features that is different from band sawing mechanism. On the other hand, a band saw is also called as bandsaw, which is a powered sawing machine with a long and sharp blades consisting of a continuous band of toothed metal stretched between wheels to cut targeted materials.

Applications

In the market, a band sawing machine is used particularly in metalworking, woodworking, and lumbering, but can also be used to cut a variety of other materials. The primary advantages of bandsaw 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.

Curve scales

Speaking of the curve scales, the minimal radius of a curve is decided 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.

Band and blade

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 be able to cut a broad variety of raw materials such as wood, metal and plastics. Almost all band saws nowadays are powered by at least an electric motor while line shaft versions were once common in the market.

Development of band sawing

Debut of band sawing can be dated back to the 19th century. About 1800s, it was the time when William Newberry 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. Technology then was not strong enough.

It was only around four decades passed then a woman named Anne Paulin Crepin devised a welding technique that has overcome this obstacle. The French inventor later applied for a patent in the year 1846, and soon afterward she sold the right to employ it to produce A. Perin & Company of Paris.

The patents across the Atlantic Ocean

The first US band saw patent was granted to a man Benjamin Barker of Ellsworth, Maine, in the year1836, and the first factory produced and commercially available of practical band saw machines in the America was launched by a design of Paul Prybil.

Before the prevalence of the band sawing method, once for a while in the industrial history, the power hacksaws with reciprocating blades were very common and practical in the metalworking industries due to its practical usages then and it can fulfill customers’ demands properly, but then as the technology progresses, band saws and cold saws have taken the place later.

In the recent days, most band sawing machines are of automatic control and is operated by the computer numerical controlled system. Common automatic band saws feature preset feed rate, return, fall, part feeding, and last but not least, part clamping that make work pieces fixed. These are used in the production conditions in which distributing one on-site machine operator for each band saw machine is not practical.

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