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| author | priyanka | 2015-06-24 15:03:17 +0530 |
|---|---|---|
| committer | priyanka | 2015-06-24 15:03:17 +0530 |
| commit | b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b (patch) | |
| tree | ab291cffc65280e58ac82470ba63fbcca7805165 /3257/CH6/EX6.6/Ex6_6.sce | |
| download | Scilab-TBC-Uploads-b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b.tar.gz Scilab-TBC-Uploads-b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b.tar.bz2 Scilab-TBC-Uploads-b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b.zip | |
initial commit / add all books
Diffstat (limited to '3257/CH6/EX6.6/Ex6_6.sce')
| -rwxr-xr-x | 3257/CH6/EX6.6/Ex6_6.sce | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/3257/CH6/EX6.6/Ex6_6.sce b/3257/CH6/EX6.6/Ex6_6.sce new file mode 100755 index 000000000..340fae020 --- /dev/null +++ b/3257/CH6/EX6.6/Ex6_6.sce @@ -0,0 +1,21 @@ +// Force in hot extrusion
+clc
+D = 150 // initial diameter in mm
+H = 300 // height in mm
+v = 330 // velocity in m/sec
+d = 75 // final diameter in mm
+mu = 0.1 // frictional coefficient
+C = 240 // in MPa
+m = 0.06 // constant
+a = 0.8 // from table
+b = 1.5 // from table
+printf("\n Example 6.6")
+R = D^2/d^2 // its calculated value in book is 2, while in actual its 4
+epsilon = 6*(H*1e-3)*log(R)/(D*1e-3)
+sigma = C*epsilon^m
+Y_bar = sigma // assumption
+p = Y_bar*(a+b*log(R))
+F = p*1e6*%pi*(D*1e-3)^2/4
+printf("\n Force required for rolling is %.1e N.",F)
+// Answer in book is 8.8e6 N. It is because of wrong calculation of value of R
+
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