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Online since: May 2014
Authors: Hiroshi Utsunomiya, Ryo Matsumoto
Specimen (aluminum alloy)
Initial element shape
Quadrilateral
(0.2mm x 0.2mm)
Young’s modulus /Gpa
69.7
Poisson’s ratio
0.3
Specific heat capacity /J·kg-1·K-1
896
Density /kg·m-3
2700
Thermal conductivity /W·m-1·K-1
167
Coefficient of shear friction
Specimen–punch interface mP
0.2, 0.4, 0.8
Specimen–container interface
0.2
Heat transfer coefficient
Specimen–tool interface /W·m-2·K-1
10000
Free surface of specimen /W·m-2·K-1
20
Finite Element Analysis Results of Punch Wear
Since the punch wear caused during forming with pulse punch ram motion is difficult to obtain from experimental results, the punch wear is discussed from the finite element analysis results.
Online since: January 2015
Authors: Ping Xia Zhang, Yong Qiang Zhu, Li Gao
(3) As the countering pulse method in fixed time is used in lower computer ( four wheels acquisition cycle is 10ms) to collect the wheel speed , and coupled with serial data transmission latency , thus resulting in Fig. 6 wheel speeds mutations starting time is 10:24:16.896, which is 0.676 seconds latter than Fig. 5 10:24:16.220 steering command is given moment.