OBJECTIVES

After completing this unit, you should be able to:

• Identify and describe parameters on CNC turning center (lathe)
  • X and Z axes
  • Point of origin
  • Common quadrant
  • Feedrate differences
  • U and W words
  • X value
  • Constant Surface Speed application
• Identify and describe G02 and G03 on a CNC turning center
• Identify and describe I and K-Method for arcs on a CNC turning center
• Identify and describe U and W with G02/G03 blocks
• Define G96 Constant Surface Speed (CSS)
• Describe the purpose of G96 CSS
• Identify and Describe G50
• Describe nub removal
• Identify and describe G71 Roughing Cycle variables
• Identify and use N words within P and Q variables in G71
• Identify finish allowance
• Apply finish allowance to U and W words in G71
• Identify and describe G76 Threading Cycle
• Calculate for K word used in G76
• Calculate for D word used in G76
• Selection number of passes for N word in G76