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A commercial laser for cutting materials uses a motion control system to follow a CNC or G-code of the pattern to be cut onto the material. The focused laser beam is directed at the material, which then either melts, burns, vaporizes away, or is blown away by a jet of gas, [ 1 ] leaving an edge with a high-quality surface finish.
The laser also has the ability to melt and seal the edges of fabric with the heat of the laser. This helps against fabric fraying during the creation process. [14] Additionally, using a laser for cutwork enables the embroiderer or creator to achieve unique designs such as an 'etched look' by changing the depth of the laser cut into the fabric.
Laser marking on stainless steel A laser engraving machine A laser engraver. A laser engraving machine consists of three main parts: a laser, a controller, and a surface. [2] The laser is a drawing tool: the beam emitted from it allows the controller to trace patterns onto the surface.
Guillotine cutting is the process of producing small rectangular items of fixed dimensions from a given large rectangular sheet, using only guillotine-cuts. A guillotine-cut (also called an edge-to-edge cut) is a straight bisecting line going from one edge of an existing rectangle to the opposite edge, similarly to a paper guillotine.
where t is the depth of cut, P is the laser beam power, v is the cutting velocity, and d is the laser beam spot diameter. [5] The depth of the cut is also influenced by the workpiece material. The material's reflectivity, density, specific heat, and melting point temperature all contribute to the lasers ability to cut the workpiece.
Laser cutting/etching [ edit ] Carbon dioxide lasers cut through leather very smoothly, and at low power a laser cutter can etch detailed designs into leather to any desired depth although some discoloration and stiffening occurs in vegetable tanned tooling leather.
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The resulting image is a negative print of the hand, and is sometimes described as a "stencil" in Australian archaeology. [ 10 ] Miniature rock art of the stencilled variety at a rock shelter known as Yilbilinji, in the Limmen National Park in the Northern Territory , is one of only three known examples of such art.