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The belt sander was invented by Eugen Laegler in 1969 out of Güglingen, Germany. 90% of the area can be reached with the belt/drum sander. The remaining 10% left such as edges, corners, under cabinets, and stairs, are sanded by an edge sanding machine. A rotary machine known as a multi disc sander or buffer is then used for the final sanding ...
As with a planer, the operator adjusts feed rollers to feed the wood into the machine. The sander smooths it and sends it out the other side. Good for finishing large surfaces. Flap sander or sanding flap wheel: A sanding attachment shaped like a Rolodex and used on a hand-held drill or mounted on a bench grinder for finishing curved surfaces.
Hand-held belt sander Stationary belt sander. A belt sander or strip sander is a sander used in shaping and finishing wood and other materials. [1] It consists of an electric motor that turns a pair of drums on which a continuous loop of sandpaper is mounted.
This ensures that no single part of the abrasive material travels the same path twice during the same rotation. Because of this random sanding action, the tool does not leave swirl marks, and is not sensitive to the direction of the wood grain. [2] This makes it useful when sanding two pieces of wood that will be fastened at right angles.
A linishing machine in use. Linishing is the process of using grinding or belt sanding techniques to improve the flatness, smoothness and uniformity of a surface and its finish. [1] [2] The process takes multiple stages, and a finer abrasive surface is typically used each time. [3]
Grinding is a subset of cutting, as grinding is a true metal-cutting process. Each grain of abrasive functions as a microscopic single-point cutting edge (although of high negative rake angle), and shears a tiny chip that is analogous to what would conventionally be called a "cut" chip (turning, milling, drilling, tapping, etc.) [citation needed].