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Posted on Nov 22, 2019
Many band saw machine users have shared the experience that the band saw machine does not cut straight enough. There are several possibilities. Here, we will discuss the most common reasons for discussion.
This discussion focuses on high-speed band saws, such as band saws that are commonly used to cut insulation and plastic. The blade speed ranges from 3,000 to 8,500 feet per minute without the use of coolant. On the other hand, if a low-speed band saw is used to cut metal, the cooling rate needs to be 100 to 300 feet per minute.
Possible conditions are: dull blade, incorrectly installed blade, wrong orientation, improper blade tension, worn band saw wheel, and bandsaw blade guide misalignment.
Due to these reasons, the sawing process will become difficult, thereby preventing the cutting from proceeding smoothly. If the high speed cutting bandsaw is used to cut metal work pieces at a low speed, the possibility of the above situation will increase. Therefore, let us first understand the metal cutting bandsaw.
In the field of metal cutting, there are two types of sawing machines on the market: bandsaw and circular saw. The circular sawing machine uses a rotating circular tool to perform the sawing process, rather than sawing bands, which leads to the unique processing characteristics of the circular saw machine.
On the other hand, band saw is a power-driven sawing machine with long and sharp band saw blades that consist of a continuous toothed metal belt used in the sawing process.
In modern design, today's circular saws and band saws cutting are mostly driven by electricity, and in ancient times, sawing force mainly produced by human power, or later may be produced by steam and water.
With the development of technology, the source of sawing power can be coming from electricity or other power sources. In addition to conventional metal cutting bandsaw, there is another type of saw called an abrasive saw, which has a powered circular blade designed to cut through metal or ceramic. In the market, the band saw machine is particularly suitable for metalworking and woodworking, of course, it can also be used to cut various other materials and work pieces.
The advantages of metal cutting bandsaw include uniform cutting movement due to uniformly distributed tooth loads on the band saw blades, and the ability to cut irregular or curved shapes like a jig saw. The minimum radius of the curve that can be cut is determined by the width of the saw band and the curve. Most metal band saws have two wheels that rotate on the same plane, one of which is powered. In addition, some can distribute three or four loads, so the distribution uniformity of the machine is improved. Compared with precision circular sawing machines, current metal cutting band saws can also cut at a smooth and accurate speed.
The traditional sawing methods evolved into metal cutting bandsaw, while the abrasive sawing evolved into a circular saw method and corresponding equipment, or formally called a circular saw machine. A common question that is asked regularly: Circular saws or band saws cutting? In fact, it should be decided based on the characteristics of cutting and work piece. Back to the question we asked at the beginning: why sometimes the band saw machine cannot cut straight lines? The reason may be operator, machinery, precision of band saw blades, or work piece material. All these variables need to be comprehensively evaluated by professional band saw experts. Users and technicians can set standardized procedures for future sawing tasks.
1. How to Distinguish Between Band Saw and Circular Saw?
2. The History of Band Sawing and Its Innovative Ideas
3. Band Saw Machine and the Corresponding Applications
4. When Shall I Choose a Band Saw Rather Than a Circular Saw?
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