34. 

8. Two types of EDM machines are Wire EDM and Die sinking or plunge EDM.

1. What does EDM stand for?

19. Electrode (tool) wear, during the discharge process, tool subject to war or erosion, average wear ration on metallic 3:1, graphite (carbon) 10:1.

20. Reverse-Polarity Machining is a new development that promises to be a major breakthrough in reducing electrode wear.

6.  How many sparks per second does the wire produce.

Bonus 1   Which electrode material has less wear when using EDM?    

Solve the problem.A ball is thrown downward from a window in a tall building. Its position at time t in seconds is where s is in feet. How long (to the nearest tenth) will it take the ball to fall 213 feet?

Graph the function.g(x) = -(x + 5)3 + 5

Find the sum or difference. Write the answer in standard form.(7 + 5i) – (-9 + i)