Electromagnetic blank pressing method and device applicable to high-speed forming
A side blanking device and blank blanking technology, applied in forming tools, metal processing equipment, manufacturing tools, etc., can solve problems such as size limitations, and achieve the effects of easy adjustment, convenient installation, and suppression of wrinkling.
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[0024] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0025] In order to achieve the above purpose, an electromagnetic blanking method suitable for high-speed forming is provided, which includes the following steps:
[0026] (1) Place a blanking coil group on the upper and lower ends of the blanking area of the sheet metal;
[0027] (2) During the high-speed forming process, a pulse current is passed into the two blank-holding coil groups, and a huge electromagnetic attraction force is generated between the coil groups, which has the effect of blank-holding force.
[0028] Preferably, each of the upper and lower blank-holding coil groups is compose...
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