The process of milling can be used for a wide variety of applications, including metals, woods, plastics and even foams. The industries they serve are also various, as metalworkers, aerospace engineers health-tech manufacturers and even woodworkers use milling machines.

Horizontal milling is just the same process turned 90 degrees. The cutter sits on a horizontal spindle across the table. With a similar cross section as a horizontal bandsaw, the horizontal milling machine is generally wider and smaller in diameter.

2.5in (63.5mm) diameter O-Ring Placing Tool simplifies placement of O-Rings to secure Latex Membranes on soil specimens.

Rotary filing, which eventually evolved into milling, was first seen around 1760. Milling is an important manufacturing process, and is critical to many material processing plants. Its purpose is to remove material from the surface of a work piece, by a rotary cutting tool. In a similar manner to a drill, the rotary axis of the cutter stays the same, spinning to make the cuts necessary. However, contrary to drilling, milling involves the desired work piece to be perpendicular to the cutting piece.

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There are many different types of cutting materials used in milling. Most are temperature resistant, so that the cutter does not wear down (as the milling process creates a LOT of heat). The cutter may be made of high-speed steel, cemented carbide and boron nitride. To make sure the cutting piece lasts many uses, the piece may be coated with an extra coat of temperature-resistant material to decrease friction or increase hardness.

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The science behind how milling machines work is similar to how a drill works. As a drill is pressed down on a workpiece, the material being hit by the cutter is removed from the workpiece from a both a vertical direction and angle. Instead, with milling the “drill” in this instance keeps the same angle but moves sideways. With milling, the direction of the piece (typically) remains vertical, but the direction of the cut goes horizontally (or vertically, if the mill itself is horizontal). As the cutting piece works over the material in a horizontal direction, the workpiece remains stationary.

Here at Direct Machines, we offer a wide variety of milling machines. Our product line is constantly expanding, and we strive to provide excellence in service and value for our customers. Please contact us at (781) 937-5655 or at [email protected] if you have questions about our machines or who we are.