Introduction to CNC Machines 201

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Across
  1. 2. American Standard Code For Information Interchange
  2. 4. An electrical signal that continuously varies within a specific range.
  3. 8. __________________ current is a current that flows in opposite directions at different times.
  4. 9. ______________ device is a device that sends information back to the controller in a closed-loop system.
  5. 13. A shearing operation that creates an open hole in sheet metal by separating an interior section.
  6. 15. ___________ slide is a tool holding component of a lathe that allows tools to approach a workpiece.
  7. 17. A series of program blocks that describes the movement of a single cutting tool.
  8. 18. The rate at which the machine spindle rotates.
  9. 19. _______________ Encoder is a type of feedback device that translates rotational motion into a digital signal.
  10. 22. CNC __________ is a machine tool that uses computer numerical data to control cutting operations on cylindrical workpieces.
  11. 23. Tool movement along two or more axes at the same time that creates a curved or angled surface.
  12. 24. CNC _________ is a machine tool that uses computer numerical data to control cutting operations on flat, square, or rectangular workpieces.
  13. 25. The number of parts made with a particular tooling setup.
  14. 26. The fixed, central point in a coordinate system.
  15. 27. _______ run is a preliminary operation to ensure that the part program will machine workpieces properly.
Down
  1. 1. ______________ Encoder is a type of feedback device that records light reflections during the machining process.
  2. 3. ______________ Cycles are a predetermined machining sequence used to simplify programming.
  3. 5. A machine that uses an abrasive to wear away at the surface of a workpiece.
  4. 6. A form of computer networking used by modern CNC machines to input part programs from a central server into the machine control unit.
  5. 7. A special servomotor used in closed-loop CNC machines that adjusts the position of machining based on feedback.
  6. 10. The process of switching a machine from one part setup to another.
  7. 11. A long, threaded device that rotates to move the worktable or cutting tool of a CNC machine.
  8. 12. _______________ Coordinate System is a numerical system that describes the location of an object by expressing its distance from a fixed position along three linear axes.
  9. 14. ______________ system is a technology that uses a computer to design a product.
  10. 16. _______________ Servo is a servomechanism driven by fluids that deliver power to the motor.
  11. 19. Rotary ________________ is a type of feedback device that records the ballscrew rotations of a CNC machine.
  12. 20. An imaginary straight line or circle used to describe the location or movement of an object in three-dimensional space.
  13. 21. ______________ motor is a servomotor that generates steps from electronic pulses that move the tool and the worktable.