In Up Milling the Thickness of Chip is

By Mona Kumari|Updated : June 29th, 2022

In up milling, the thickness of chip is__________.

  1. Minimum at the beginning of the cut and maximum at the end of the cut 
  2. Maximum at the beginning of the cut and minimum at the end of the cut 
  3. Uniform throughout the cut 
  4. None of these

Answer: 1. minimum at the beginning of the cut and maximum at the end of the cut 

In up milling, the thickness of the chip is minimum at the beginning of the cut and maximum at the end of the cut.

Solution:

Up milling: Chip thickness ranges from zero to maximum as the milling cutter is fed in the opposite direction of the movement of the workpiece. The workpiece is also being lifted by the opposing force. Since chip thickness ranges from zero to maximum, the workpiece is first rubbed, which leads to a poor surface finish. Hence In up milling, the thickness of the chip is minimum at the beginning of the cut and maximum at the end of the cut.

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