Mathematics For Machine Technology
Mathematics For Machine Technology
8th Edition
ISBN: 9781337798310
Author: Peterson, John.
Publisher: Cengage Learning,
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Chapter 87, Problem 27A

Write a CNC G-code program to machine the part in the following figure, so that the tip of the tool follows this path:

  • rapid movement to a point above P8, with z = 4 . using absolute dimensioning
    change to tool "4, with a clockwise spindle speed of 2500 rpm, with coolant on and a feed rate of 14 in./min
  • using incremental dimensioning
  • -rapid movement to 4 in. above P1
    -rapid movement to lower the tool to be 0.1 in. above the top surface of the part
    -move the tool to be 0.5 in. below the top at a 14 in./min feed rate
    -follow the path around the perimeter to points P2 through PI, ending at P1, using the 14in„/min feed rate
  • turn off the spindle and coolant
  • use absolute dimensioning to return to the start point
  • end the program

Chapter 87, Problem 27A, Write a CNC G-code program to machine the part in the following figure, so that the tip of the tool

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True or False and why
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