A Tensile Strip Test for Evaluating Friction in Sheet Metal Forming

1978 ◽  
Author(s):  
J. L. Duncan ◽  
B. S. Shabel ◽  
J. Gerbase Filho
Keyword(s):  
Sheet Metal ◽  
Sheet Metal Forming ◽  
Metal Forming ◽  
Tensile Strip ◽  
Strip Test

Friction Behavior under Different Forming Speed for Sheet Metal Forming

2012 ◽  
Vol 472-475 ◽  
pp. 662-665
Author(s):  
Xiu Juan Fu ◽  
Jian Jun Li ◽  
Qian Liu
Keyword(s):  
Sheet Metal ◽  
Sheet Metal Forming ◽  
Metal Forming ◽  
Friction Behavior ◽  
Servo Press ◽  
Stamping Process ◽  
Tensile Strip ◽  
Displacement Force ◽  
Set Up ◽  
Quality Of Products

In sheet metal forming, the friction between tooling and workpiece is an important factor which affects not only the quality of products but also the service life of tooling. In order to consider the effects of friction accurately for the optimization of stamping process and simulation, the friction behavior under different forming speed was investigated via tensile strip experiments. A 10000N servo-press which forming speed is ranged from 0.1mm/s to 200mm/s was used to collect the experiment data. Based on these data, the law of friction between tooling and workpiece was derived, it will be very useful to help set up the displacement-force and forming speed curve for the optimization of stamping process when a servo-press is employed.

ИССЛЕДОВАНИЕ ТОЧНОСТИ ДЕТАЛЕЙ, ПОЛУЧАЕМЫХ ПРИ РАЗДЕЛИТЕЛЬНЫХ ОПЕРАЦИЯХ В ПЕРЕНАЛАЖИВАЕМЫХ ШТАМПАХ

2018 ◽  
pp. 52-63
Author(s):  
Е. А. Фролов ◽  
В. В. Агарков ◽  
С. И. Кравченко ◽  
С. Г. Ясько
Keyword(s):  
Sheet Metal ◽  
Sheet Metal Forming ◽  
Metal Forming ◽  
Balance Method ◽  
Experiment Planning ◽  
Practical Recommendations

To determine the accuracy of the readjustable punches for separating operations (perforation + punching out) of sheet-metal forming, the accuracy parameters were analyzed using the random balance method using the method of experiment planning. Analytical dependencies are obtained to determine the values of deviation of the outer and inner contour dimensions of perforated and punched out sheet parts. From the dependencies obtained, it is possible to estimate and predict the value of deviation in the dimensions of the resulting part at any time during the operation of the punch. Practical recommendations on the calculation of the actuating dimensions of the working elements (stamping punch, matrix) of readjustable punches are offered.

Acquisition of material properties in production for sheet metal forming processes

2013 ◽  
Author(s):  
Jörg Heingärtner ◽  
Anja Neumann ◽  
Dirk Hortig ◽  
Yasar Rencki ◽  
Pavel Hora
Keyword(s):  
Sheet Metal ◽  
Sheet Metal Forming ◽  
Material Properties ◽  
Metal Forming

Controllable pulsed electromagnetic blank holder method for electromagnetic sheet metal forming

2019 ◽  
Vol 103 (9-12) ◽  
pp. 4507-4517 ◽  
Author(s):  
Yujie Huang ◽  
Zhipeng Lai ◽  
Quanliang Cao ◽  
Xiaotao Han ◽  
Ning Liu ◽  
...  
Keyword(s):  
Sheet Metal ◽  
Sheet Metal Forming ◽  
Metal Forming ◽  
Blank Holder ◽  
Pulsed Electromagnetic
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