formability test
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Formability Tests for Tailor Welded BlanksFormability Tests for Tailor Welded Blanks
Contents
2
Tensile Test
LDH Test
FLC Test and Strain Measurement
Friction Test
Rectangular Cup Drawing.
Tensile Test
3
Tensile test specimen size
Dimensions in mmStandard size
(ASTM E-8)
G – Gage length 50.0±0.1
R – Radius of fillet 12.5
A – Length of reduced section 57
C – Width of grip section 20
W – Width 12.5±0.2
L- Overall length 200
B – Length of grip section 50
(a) Type 1
WELD
(a) Type 2
Results of Tensile Test
4
LDH Test
5
Punch diameter is 100mm.
Crack
FLC Test
6
FL
Co
Forming
Limit
Curve
Results of FLC Test
Strain Measurement
Friction Test
7
N
N
F
F N/
rollers
Schematic diagram of flat friction testFriction Tester
N1 N2
F1, F2 1
21
N
FFµ
Schematic diagram of drawbead friction test
Cylinerical Cup Drawing
8
Recgular Cup Drawing
9
167
160
40
40
S
weldline
Blanktype1
R12
R5
88
84
35
geometric center line
weld
C
F
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