7. Pressure Angle and Undercutting

Try these first

1. 1.

   What is the pressure angle in cam design?

   Hint

   Think about how the motion of the follower relates to the cam's shape.

2. 2.

   Define undercutting in cam profiles.

   Hint

   Consider how cutting affects interaction between moving parts.

3. 3.

   What is the main impact of a high pressure angle?

   • Reduces wear
   • Increases side thrust
   • Enhances efficiency

   Hint

   Consider the direction of forces.

4. 4.

   Are excessive undercuts beneficial for cam designs?

   • True
   • False

   Hint

   Think about what undercutting disconnects.

5. 5.

   Design a cam profile that minimizes pressure angle while maximizing follower efficiency. Describe the components used.

   Hint

   Draw on principles from smooth transitions in mechanical movement.

6. 6.

   Evaluate an existing cam with a high pressure angle and suggest improvements to mitigate wear and efficiency loss.

   Hint

   Consider how contact areas can enhance mechanical advantages.