Transcription of MILLING OPERATIONS TYPES OF MILLING MACHINES
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MILLING OPERATIONS TYPES OF MILLING MACHINES
TC 9-524 Chapter 8 MILLING OPERATIONSM illing is the process of machining flat, curved, orMilling MACHINES are basically classified as vertical orirregular surfaces by feeding the workpiece against a rotatinghorizontal. These MACHINES are also classified as knee-type, cutter containing a number of cutting edges. The millingram-type, manufacturing or bed type, and planer-type. Mostmachine consists basically of a motor driven spindle, whichmilling MACHINES have self-contained electric drive motors,mounts and revolves the MILLING cutter , and a reciprocatingcoolant systems, variable spindle speeds, and power-operatedadjustable worktable, which mounts and feeds the feedsTYPES OF MILLING MACHINESKNEE-TYPE MILLING MACHINEKnee-type MILLING MACHINES are characterized by a verticallyadjustable worktable resting on a saddle which is supportedby a knee. The knee is a massive casting that rides verticallyon the MILLING machine column and can be clamped rigidly tothe column in a position where the MILLING head and millingmachine spindle are properly adjusted vertically for plain vertical MACHINES are characterized by a spindlelocated vertically, parallel to the column face, and mounted ina sliding head that can be fed up and down by hand or vertical MILLING MACHINES are designed so the entirehead can also swivel to permit working on angu
Figure 8-3 shows two views of a common milling cutter Milling cutters are usually made of high-speed steel and are with its parts and angles identified. These parts and angles in available in a great variety of shapes and sizes for varioussome form are common to all cutter types. purposes. You should know the names of the most common
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