Mumbai University > Mechanical Engineering > Sem 7 > CAD/CAM/CAE

Marks: 4 M

Year: May 2012

• The adaptive control of metal working process is a logic extension of numerical control and computer control. In NC process as described so far, the cutting speed and feeds are prescribed by the path programmer. The determination of these parameter depends on his knowledge and experience about the work piece and tool materials, coolant condition and other factors.
• The main idea of Adaptive Control is the improvement of the cutting process by automatic on line determination of speed and/or cutting.
• It is basically a feedback system in which cutting speed and feed automatically adapt themselves to the actual condition of the process and are varied accordingly to the changes in the work conditions as work progresses.
• That is done by performing of the process output variables and calculating either a performance level or machine constrains.
• In practice the Adaptive Control system of machine tools can be classified into two types:
  • Adaptive Control with Optimization (ACO)
  • Adaptive Control with Constraints (ACC)
• Benefits of Adaptive Control :
  • Increased production rate
  • Increased tool life
  • Greater part protection
  • Less operator intervention