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Automotive key applications
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Strain [%]
Stre
ss [M
Pa]
Docol 1400 M
Docol 800 DP
DC04 Deep drawing steel
Aluminum 6063-T6
Dual Phase steel
Martensitic steel
Tensile test results
Elongation
Docol 1200M, minimum elongation 3% (A80)
Demonstration of ductility of a tube in Docol 1200M)
5
Forming limit diagram
+ -
+
6
Elongation Tensile samples, A80 vs ”A2”
80 mm
0
0,1
0,2
0,3
-0,2 -0,1 0 0,1 0,2 0,3
Maj
or S
trai
n
Minor strain
A80 in %
FLC (local strain “A2” in %.
Elongation vs Forming Limit Curve Docol 1000DP
8 06/09/2012
Tensile strength and elongation for different steels
MPa A80, %
9 06/09/2012
Tensile strength, elongation and FLD0 Te
nsile
stre
ngth
(MP
a)
A80
, FLD
0, 2m
m (%
)
39
29 25
21 17
14
MPa A80, %
0
0,1
0,2
0,3
-0,2 -0,1 0 0,1 0,2 0,3
Maj
or S
trai
n
Minor strain
Elongation vs Forming Limit Curve Docol 1000DP
11 06/09/2012
Bending
600 DP 800 DP
1200 M 1000 DP
1400 M
DC06
12 06/09/2012
Rollforming
Docol 1400 M
Minimum internal radius in bending = 3xt
Internal radius obtained in rollforming = 1xt
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3D-Rollforming?
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