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Elan Coil [88]
3 years ago
10

Three blocks a, b, and c and a grooved block d have dimensions a, b, c, and d as follows: a 5 1.500 6 0.001 in b 5 2.000 6 0.003

in c 5 3.000 6 0.004 in d 5 6.520 6 0.010 in d a b b c d a w c (a) determine the mean gap w and its tolerance. (b) determine the mean size of d that will assure that w $ 0.010 in.
Mathematics
1 answer:
tankabanditka [31]3 years ago
4 0

solution:

a)  The mean value of gap w̅ is given by,

w̅= d̅ - a̅ - b̅ - c̅

w̅=06.520-0.150-2.000-3.000

w̅=0.020 in

bilateral tolerances of the gap is given by,

tw = ∑t

tw  = 0.001+0.003+0.004+0.010= 0.018 in

w = 0.020 ± 0.018 in

b)  if wmin =0.010 in , then

   w̅ = wmin + tw

   w̅ = 0.010+ 0.018=0.028 in

mean size of d is

d̅ = a̅ + b̅+ c̅+ w̅

d̅ =1.500+2.000+3.000+0.028

  = 6.528 in


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