Milling machine is the most important machine tool in machine shop.
I like to do job in milling machine.
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Milling machines are tools designed to machine metal, wood, and other solid materials. Often automated, milling machines can be positioned in either vertical or horizontal orientation to carve out materials based on a pre-existing design. These designs are often CAD directed, and many milling machines are CNC-operated, although manually and traditionally-automated milling devices are also common. Milling machines are capable of dynamic movement, both of the tool and the workpiece, and many milling machines can perform multi-axis machining.
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Because of variations in orientation, operation and application, milling machines have varying functions and different operating principles.
ARBOR DIAMETER: Select the largest diameter available to maximize rigidity and minimize deflection. For example, a 1 1/4" arbor is more than twice as rigid as a 1" arbor.
TOOL DIAMETER: For slitting saws, select the smallest diameter which permits the greatest number of teeth to be engaged in the cut at any time.
For slot and side milling cutters, select the diameter which permits no more than two teeth to be engaged in the cut at any time.
NUMBER OF TEETH: Select fewer teeth for low tensile materials and heavier chip loads. Select more teeth for high tensile materials and better finishes.
COATINGS: are especially effective (see "Coating Selector").
APPROPRIATE: carbide grade, carbide finish, number of teeth, flute size, radial rake angle and cutting edge clearance are engineered by HANNIBAL for optimum performance when machining the materials indicated.
TYPES OF MILLING: In conventional milling, the direction of cutter rotation is opposite to the direction of workpiece feed. The initial portion of the chip generated is very thin and gradually increases through the cutting cycle. The maximum cutting force is upward at the end of the cutting cycle.
In climb milling, the direction of cutter rotation and the direction of workpiece feed are the same. The initial portion of the chip generated is thick and gradually thins through the cutting cycle, producing a better finish. The maximum cutting force is the initial downward thrust at the beginning of the cutting cycle.