Name the part of a milling machine on which milling cutters are securely mounted and rotated.

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  1. Front brace
  2. Arbor
  3. Saddle
  4. Overhanging arm

Answer (Detailed Solution Below)

Option 2 : Arbor
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Explanation:

Milling Machine:

  • A milling machine is one of the most important tools in the field of manufacturing and engineering. It is used to shape and cut solid materials, usually metal, with precision. The machine rotates a cutting tool (known as a milling cutter) to remove material from a workpiece by advancing the workpiece into the tool at a particular angle. To ensure efficient and precise milling operations, all components of the milling machine must function properly, including the part where the milling cutter is securely mounted and rotated.

Arbor

  • The arbor is a crucial part of a milling machine. It is the shaft on which the milling cutter is securely mounted and rotated. The arbor is supported by an overarm and is connected to the spindle of the milling machine. Its primary function is to hold and support the milling cutter during operation while transmitting rotational motion from the spindle to the cutter.

Key Features of an Arbor:

  • Secure Mounting: The arbor is designed to securely hold the milling cutter, ensuring stability during high-speed rotations and cutting operations.
  • Size and Length Variations: Arbors are available in different lengths and diameters to accommodate various sizes of milling cutters and the specific requirements of the milling operation.
  • Support by Overarm: The overarm of the milling machine provides additional support to the arbor, reducing vibrations and ensuring precision during cutting.
  • Compatibility: Arbors are designed to fit specific types of milling machines and cutters, ensuring proper alignment and functionality.
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