电磁成形中的测量

本文简要介绍了电磁成形中放电电流、管坯与线圈间隙中的磁场测量 ,以及管坯动态变形过程测量的各种方法。通过各种方法的比较分析 ,得出分流器法测放电电流、探测线圈法测感生磁场是切实可行的方法。金属坯料在电磁力作用下的变形过程可用撞针法和高速摄影的办法进行测量 ,每种方法各有其优势和适用范围 ,测量时 ,根据实际情况进行选用。

Some measurements of electromagnetic forming

In this paper, some methods to measure discharging current, the magnetic induction intensity and are presented and discussed, by theoretical analysis and comparison, some conclusions are drawn. Measuring discharging current with current divider, and measuring magnetic induction intensity with magnetic test coil are feasible in practice. Deformation behavior of work-piece under electromagnetic force can be measured with sliding needles and high-speed camera, each method has advantages and disadvantages, according to the specific experimental situation, the more appropriate method should be chosen.