A bandsaw is a power tool which uses a blade consisting of a continuous band of metal with teeth along one edge to cut various workpieces. The band usually rides
on two wheels rotating in the same plane, although some bandsaws may have three
or four wheels. Bandsawing produces uniform cutting action as a result of an
evenly distributed tooth load. Bandsaws are used for woodworking, metalworking, or for cutting a variety of other materials, and are
particularly useful for cutting irregular or curved shapes, but can also be
used to produce straight cuts. The minimum radius of a curve that can be cut on
a particular saw is determined by the width of the band and its kerf.
Bandsaws for cutting metal are available in vertical and horizontal designs. Typical band speeds range from 40 feet (12 meters) per minute to 5,000 feet (1,500 meters) per minute, however specialized bandsaws are built for friction cutting of hard metals and run band speeds to 15,000 feet per minute. Metal-cutting bandsaws are usually equipped with brushes or brushwheels to prevent chips from becoming stuck in between the blade's teeth. Systems which cool the blade are also common equipment on metal-cutting bandsaws. The coolant washes away chips and keeps the blade cool and lubricated.
Horizontal bandsaws hold the work piece stationary while the blade swings down through the cut. This configuration is used to cut long materials such as pipe or bar stock to length. Thus it is an important part of the facilities in most machine shops.
A vertical bandsaw, also called a contour saw, has a stationary blade while the workpiece is moved against the blade. This type of saw can be used to cut out complex shapes and angles. The part may be fed into the blade manually or with a power assist mechanism. This type of metal-cutting bandsaw is often equipped with a built-in blade welder.
Bandsaws for cutting metal are available in vertical and horizontal designs. Typical band speeds range from 40 feet (12 meters) per minute to 5,000 feet (1,500 meters) per minute, however specialized bandsaws are built for friction cutting of hard metals and run band speeds to 15,000 feet per minute. Metal-cutting bandsaws are usually equipped with brushes or brushwheels to prevent chips from becoming stuck in between the blade's teeth. Systems which cool the blade are also common equipment on metal-cutting bandsaws. The coolant washes away chips and keeps the blade cool and lubricated.
Horizontal bandsaws hold the work piece stationary while the blade swings down through the cut. This configuration is used to cut long materials such as pipe or bar stock to length. Thus it is an important part of the facilities in most machine shops.
A vertical bandsaw, also called a contour saw, has a stationary blade while the workpiece is moved against the blade. This type of saw can be used to cut out complex shapes and angles. The part may be fed into the blade manually or with a power assist mechanism. This type of metal-cutting bandsaw is often equipped with a built-in blade welder.
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Metal bandsaws are a very common tool used in machine shops, fabrication shops and construction sites. They are used to make vertical cuts in solid, rectangular workpieces of all sizes. Because they operate with a rotating blade that moves through the workpiece, their precision is limited. But they are inexpensive, easy to operate and very portable.
ReplyDeleteA metal bandsaw's cutting capacity is determined by its throat depth — the distance between the column and the blade — and its throat height — the distance between the table and the blade guide assembly. The greater these distances are, the larger a metal bandsaw's cutting capacity will be.
When it comes to small metal bandsaws, there are two general categories: benchtop and floor models. Benchtop models typically have throats up to 14 inches deep and 12 inches high, while floor models usually offer throats up to 20 inches deep and 16 inches high. Within these categories, there is some variation among different manufacturer's models, so be sure to check a metal band saw's specifications before you buy it.
Metal Bandsaw
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