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A Bead roller is a machine tool that makes rigid lines in sheet metal to make surfaces more rugged and durable. The lines bead rollers add to sheet metal prevent warping and disfigurement by adding structural integrity to the metal.
The anvil wheel usually has a smaller radius than the rolling wheel. Although larger machines exist, the rolling wheel is usually 8 cm (3 in) wide or less, and usually 25 cm (10 in) in diameter, or less. The rolling (top) wheel is flat in cross section, while the anvil (bottom) wheel is domed. The depth of the C-shaped frame is called the throat
This means the user does not need to change their arm and hand position when moving from hammer to slapper. The slapper can be far more effective than the hammer for shrinking metal, because its leverage gives greater mechanical advantage over the rough spots. The slapper is great for working metal over a T-stake, or for gouging and planishing.
Rollers vary in diameter and thickness depending the intended use. The wider the roller the smoother the surface of the spinning; the thinner rollers can be used to form smaller radii. Cutting of the metal is done by hand held cutters, often foot long hollow bars with tool steel shaped/sharpened files attached.
Milling is the complex shaping of metal or other materials by removing material to form the final shape. It is generally done on a milling machine , a power-driven machine that in its basic form consists of a milling cutter that rotates about the spindle axis (like a drill ), and a worktable that can move in multiple directions (usually two ...
There are two basic types of rotary swaging machine, the standard (also known as a tagging machine), and the butt swaging machine. A butt swaging machine works by having sets of wedges that close the dies onto the workpiece by inserting them between the annular rollers and the dies, normally by the use of a foot pedal.