About Broaching Machines
Broaching machines are special purpose machines. A broaching machine is widely used as a metal cutting machine used for surface finishing by pressing a broaching tool on a workpiece surface. A broaching tool acts as a cutter, which consists of cutting teeth arranged in a row. A broaching machine works on the principle of proper offsetting of the workpiece and then performing work on it. The centerline of a workpiece and a broaching tool are aligned to each other at an offset position of 1°. This position generates a scalloping effect on the workpiece and allows the broaching tool to shear the workpiece. A workpiece is kept stationary and the broaching tool is rotated. In this way, only the leading edge of the workpiece is broached instead of the full surface. There are many types of broaching machines. Examples include a table up internal broaching machine and a vertical dual ram surface broaching machine. A table up internal broaching machine is used to perform floor level operations and solve relocation problems. A vertical dual ram surface broaching machine uses a dual ram broaching cutting tool and is used for heavy duty workpieces. Other broaching machines are commonly available.
Engineering Web: Broaching Machines - Machine Design
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