According to the shop manual, when drilling a 11.1mm--diameter hole in wood,
plastic, or aluminum, a drill should have a speed of 1400 rev/min .
1. For a 11.1-mm-diameter drill bit turning at a constant 1400rev/min , find the
maximum linear speed of any part of the bit.
2. Find the maximum radial acceleration of any part of the bit.
drilling
2012-10-26 9:45 pm
回答 (1)
2012-10-29 11:48 pm
✔ 最佳答案
Angular speed of drill bit = 1400 x 2.pi/60 s^-1 = 146.6 s^-1Max speed = 146.6 x (0.0111/2) m/s = 0.814 m/s
Max radial acceleration = 0.814^2/(0.0111/2) m/s^2 = 119 m/s^2
收錄日期: 2021-04-29 17:46:55
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