In order to evaluate the shearing quality, the material inhomogeneity through thickness after shearing is introduced by the authors. This study investigates the shearing and local formability of hot-rolled high-strength steel (HSS) plate, which is generally exploited for the manufacturing of the beam of heavy trucks. Various kinds of plates with different thicknesses and strengths are used to figure out the effect of material properties on the shearing quality. Both the shear surface morphology and microhardness distribution of the sheared edge are considered for evaluating the influence of the sheared-edge quality on local formability during the following forming process. Vickers hardness tests are conducted to analyze the microhardness distribution on the shear surface, which is proved to have significant effect on the local formability of the sheared edge. Furthermore, two kinds of bending tests and simulation are employed to study the edge cracking phenomenon, and the results indicate that the junctional zone of burnished zone and fracture zone, which is defined as peak hardness zone (PHZ), has a significant impact on major strain distribution on shear surface in the side bending test and this region is the main cause of edge cracking in normal bending test.

References

References
1.
Kuziak
,
R.
,
Kawalla
,
R.
, and
Waengler
,
S.
,
2008
, “
Advanced High Strength Steels for Automotive Industry
,”
Arch. Civ. Mech. Eng.
,
8
(
2
), pp.
103
117
.
2.
Hatanaka
,
N.
,
Yamaguchi
,
K.
, and
Takakura
,
N.
,
2003
, “
Finite Element Simulation of the Shearing Mechanism in the Blanking of Sheet Metal
,”
J. Mater. Process. Technol.
,
139
(1–3), pp.
64
70
.
3.
Taupin
,
E.
,
Breitling
,
J.
,
Wu
,
W.-T.
, and
Altan
,
T.
,
1996
, “
Material Fracture and Burr Formation in Blanking Results of FEM Simulations and Comparison With Experiments
,”
J. Mater. Process. Technol.
,
59
(1–2), pp.
68
78
.
4.
Hatanaka
,
N.
,
Yamaguchi
,
K.
,
Takakura
,
N.
, and
Lizuka
,
T.
,
2003
, “
Simulation of Sheared Edge Formation Process in Blanking of Sheet Metals
,”
J. Mater. Process. Technol.
,
140
(1–3), pp.
628
634
.
5.
Lemiale
,
V.
,
Chambert
,
J.
, and
Picart
,
P.
,
2009
, “
Description of Numerical Techniques With the Aim of Predicting the Sheet Metal Blanking Process by FEM Simulation
,”
J. Mater. Process. Technol.
,
209
(5), p.
2723–2734
.
6.
Hu
,
X. H.
,
Choi
,
K. S.
,
Sun
,
X.
, and
Golovashchenko
,
S. F.
,
2014
, “
Edge Fracture Prediction of Traditional and Advanced Trimming Processes for AA6111-T4 Sheets
,”
ASME J. Manuf. Sci. Eng.
,
136
(
2
), p.
021016
.
7.
Liu
,
J.
,
Bai
,
Y.
, and
Xu
,
C.
,
2013
, “
Evaluation of Ductile Fracture Models in Finite Element Simulation of Metal Cutting Processes
,”
ASME J. Manuf. Sci. Eng.
,
136
(
1
), p.
011010
.
8.
Marouani
,
H.
,
Ben Ismail
,
A.
,
Hug
,
E.
, and
Rachik
,
M.
,
2009
, “
Numerical Investigations on Sheet Metal Blanking With High Speed Deformation
,”
Mater. Des.
,
30
(
9
), pp.
3566
3571
.
9.
Husson
,
C.
,
Correia
,
J. P. M.
,
Daridon
,
L.
, and
Ahzi
,
S.
,
2008
, “
Finite Elements Simulations of Thin Copper Sheets Blanking: Study of Blanking Parameters on Sheared Edge Quality
,”
J. Mater. Process. Technol.
,
199
(1–3), pp.
74
83
.
10.
Li
,
Y.-G.
,
Ye
,
Q.
,
Fan
,
F.
,
Bao
,
Y.
, and
Huang
,
Q.-X.
,
2012
, “
Finite Element Method Analysis of Effect of Blade Clearance on Plate Shearing Process
,”
J. Iron Steel Res. Int.
,
19
(
10
), pp.
26
29
.
11.
Goijaerts
,
A. M.
,
Govaert
,
L. E.
, and
Baaijens
,
F. P. T.
,
2002
, “
Experimental and Numerical Investigation on the Influence of Process Speed on the Blanking Process
,”
ASME J. Manuf. Sci. Eng.
,
124
(
2
), pp.
416
419
.
12.
Shim
,
K. H.
,
Lee
,
S. K.
,
Kang
,
B. S.
, and
Hwang
,
S. M.
,
2004
, “
Investigation on Blanking of Thin Sheet Metal Using the Ductile Fracture Criterion and Its Experimental Verification
,”
J. Mater. Process. Technol.
,
155–156
, pp.
1935
1942
.
13.
Gustafsson
,
E.
,
Oldenburg
,
M.
, and
Jansson
,
A.
,
2016
, “
Experimental Study on the Effects of Clearance and Clamping in Steel Sheet Metal Shearing
,”
J. Mater. Process. Technol.
,
229
, pp.
172
180
.
14.
Kalpakjian
,
S.
,
1997
,
Manufacturing Processes for Engineering Materials
,
3rd ed.
,
Addison Wesley
,
Menlo Park, CA
.
15.
Samuel
,
M.
,
1998
, “
FEM Simulations and Experimental Analysis of Parameters of Influence in the Blanking Process
,”
J. Mater. Process. Technol.
,
84
(
1–3
), pp.
97
106
.
16.
Shih
,
H.-C.
, and
Shi
,
M. F.
,
2011
, “
An Innovative Shearing Process for AHSS Edge Stretchability Improvements
,”
ASME J. Manuf. Sci. Eng.
,
133
(
6
), p.
061018
.
17.
Li
,
S.
,
He
,
J.
,
Xia
,
Z. C.
,
Zeng
,
D.
, and
Hou
,
B.
,
2014
, “
Bifurcation Analysis of Forming Limits for an Orthotropic Sheet Metal
,”
ASME J. Manuf. Sci. Eng.
,
136
(
5
), p.
051005
.
18.
He
,
J.
,
Xia
,
Z. C.
,
Li
,
S.
, and
Zeng
,
D.
,
2013
, “
M–K Analysis of Forming Limit Diagram Under Stretch-Bending
,”
ASME J. Manuf. Sci. Eng.
,
135
(
4
), p.
041017
.
19.
Hasan
,
R.
,
Kasikci
,
T.
,
Tsurkrov
,
I.
, and
Kinsey
,
B. L.
,
2013
, “
Numerical and Experimental Investigations of Key Assumptions in Analytical Failure Models for Sheet Metal Forming
,”
ASME J. Manuf. Sci. Eng.
,
136
(
1
), p.
011013
.
20.
Levy
,
B. S.
, and
Tyne
,
C. J.
,
2011
, “
Review of the Shearing Process for Sheet Steels and Its Effect on Sheared-Edge Stretching
,”
J. Mater. Eng. Perform.
,
21
(7), pp.
1205
1213
.
21.
Tsoupis
,
I.
,
Hildering
,
S.
, and
Merklein
,
M.
,
2014
, “
Bending of High-Strength Low-Alloyed Steel With Respect to Edge Crack Sensitivity Caused by Shearing Operations
,”
Procedia Eng.
,
81
, pp.
712
717
.
22.
Shih
,
H.-C.
, and
Shi
,
M. F.
,
2011
, “
An Innovative Shearing Process for AHSS Edge Stretchability Improvements
,”
ASME J. Manuf. Sci. Eng.
,
133
(
6
), p.
061018
.
23.
Wang
,
K.
,
Greve
,
L.
, and
Wierzbicki
,
T.
,
2015
, “
FE Simulation of Edge Fracture Considering Pre-Damage From Blanking Process
,”
Int. J. Solids Struct.
,
71
, pp.
206
218
.
24.
Matsuno
,
T.
,
Nitta
,
J.
,
Sato
,
K.
,
Mizumura
,
M.
, and
Suehiro
,
M.
,
2015
, “
Effect of Shearing Clearance and Angle on Stretch-Flange Formability Evaluated by Saddle-Type Forming Test
,”
J. Mater. Process. Technol.
,
223
, pp.
98
104
.
25.
Sun
,
Q.
,
Chen
,
J.
, and
Pan
,
H.
,
2015
, “
Prediction of Edge Crack in Cold Rolling of Silicon Steel Strip Based on an Extended Gurson–Tvergaard–Needleman Damage Model
,”
ASME J. Manuf. Sci. Eng.
,
137
(
2
), p.
021003
.
26.
ABAQUS
,
2011
, “
ABAQUS Analysis User's Manual
,” Version 6.11, Dassault Systèmes, Waltham, MA.
27.
Bahloul
,
R.
,
Dal Santo
,
P.
, and
Potiron
,
A.
,
2008
, “
Optimisation of the Bending Process of High Strength Low Alloy Sheet Metal: Numerical and Experimental Approach
,”
Int. J. Mater. Form
,
1
(
1
), pp.
113
116
.
28.
Zhang
,
P.
,
Li
,
S. X.
, and
Zhang
,
Z. F.
,
2011
, “
General Relationship Between Strength and Hardness
,”
Mater. Sci. Eng.
,
529
, pp.
62
73
.
29.
Cockcroft
,
M. G.
, and
Latham
,
D. J.
,
1968
, “
Ductility and the Workability of Metals
,”
J. Inst. Met.
,
96
, pp.
33
39
.
You do not currently have access to this content.