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CNC machining can be described as a broad array of machining processes. Computer Numerical Controlled is a programmable feature that allows the machine to perform many functions with no human involvement. CNC manufacturing is the creation of a part using an CNC controlled machine. The term "cnc machining" refers to various subtractive manufacturing processes that require the removal of materials from a workpiece or bar in order to create a finished part. There are five types of CNC machining performed by 5 different kinds of CNC machines. In case where you really want a useful reference on CNC machine, browse around this website. These processes are used in many applications across a range of industries, including aerospace, medical, industrial, oil and gas, hydraulics, firearms, etc. CNC machines can be used to process a range of different materials, including glass, metal, plastics, composites, wood, and glass. CNC machining offers many benefits over machining that does not have CNC programmable capabilities. It is possible to achieve drastically reduced cycle times, better finishing and even multiple features simultaneously. This improves quality and reliability. It is conducive to medium and high volume requirements where precision and complexity are needed. CNC Lathes and Turning Machines The capability to turn material when machining is what differentiates CNC turning machines and lathes. The cutting tools for these machines are moved in a linear manner along the rotating bar stock; removing material around the perimeter until the desired diameter (and feature) is achieved. A subset of CNC Swiss lathes is the machine Pioneer Service uses. With CNC Swiss lathes the bar of material rotates and slides axially through a guide bushing (a holding mechanism) into the machine. This provides the material with better support, as the tooling machine that the piece features, resulting in tighter tolerances. CNC lathes and turn machines can produce external and internal characteristics on the components: drilled holes, bores broaches, reamed hole, slots, tapping, tapers and threads. CNC lathes can make components such as screws, bolts or shafts. CNC Milling Machines The CNC milling machine has the ability to turn cutting tools around and keep the material block/workpiece stationary. You can create a variety of shapes, such as face-milled (shallow flat surfaces, cavities in the workpiece) and peripherally milled (deep hollows like threads and slots). CNC milling machines create components in square or rectangular shapes with a range of features. CNC Laser Machines CNC laser machines feature an angled router that has a highly focused laser beam which is used to precisely cut and engrave material. The laser's heat causes the material to be heated and causes it to either melt or evaporate. This creates cuts in the material. The material is usually in the form of a sheet. To create an exact cut laser beam, it moves across the material. This technique can create more designs than conventional cutting machines (lathes turning centers, mills) and can often produce cuts or edges that don't require any additional finishing. CNC laser engraving machines are commonly used for part marking (and decoration) of machined components. It can be challenging to incorporate a logo, or company's name onto a CNC-machined part. Laser engraving can be utilized to add the information to the component after the machining has been completed. CNC Electrical Discharge Machines A CNC electric discharge machine (EDM) uses extremely controlled electrical sparks to manipulate materials to the desired shape. It could also be referred to as spark erosion, die sinking, spark machining or wire burning. CNC Plasma Cutting Machines CNC plasma-cutting machines are also used to cut materials. They make use of a plasma torch (electronically-ionized gases) torch to cut the material. Like a handheld, gas-powered torch used for welding (up to 10,000 degrees Fahrenheit), plasma torches achieve temperatures up to 50,000°F. The torch that melts the material to make cuts in the material.
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