Dissimilar metal plate magnetic-collecting and force-controlling magnetic pulse connecting device as well as working method thereof

Abstract

The invention relates to a dissimilar metal plate magnetic-collecting and force-controlling magnetic pulse connecting device as well as a working method thereof. The dissimilar metal plate magnetic-collecting and force-controlling magnetic pulse connecting device comprises a target plate, an isolating plate, a flying plate and an outer guiding seat which are sequentially stacked from the bottom tothe top, wherein a longitudinal through hole is formed in the outer guiding seat; a first opening is formed in the bottom of the longitudinal through hole; a solenoid coil is longitudinally arrangedin the longitudinal through hole, and a power source system is connected with two ends of the solenoid coil and used for discharging electricity to the solenoid coil, so that an electromagnetic driving force can be generated from an induction loop defined by the outer guiding seat and the flying plate; and a second opening is formed in the isolating plate, so that the flying plate can be driven under the electromagnetic driving force to downward penetrate through and impact on the target plate so as to form a connecting area. The dissimilar metal plate magnetic-collecting and force-controllingmagnetic pulse connecting device provided by the invention has the beneficial effects that the structural design is simple and reasonable; through the arrangement of the solenoid coil in the outer guiding seat, the magnetic-collecting and force-controlling purposes can be fulfilled; the flexible and adjustable electromagnetic driving force can be generated; the window of the magnetic pulse connecting process can be widened; and the problem that for the conventional magnetic pulse connection technology, the energy utilization rate is low and the connecting quality is difficult to control can be solved.

Description

[0001] Technical field: [0002] The invention relates to a magnetism-controlling force magnetic pulse connection device of dissimilar metal plates and a working method thereof. [0003] Background technique: [0004] At present, in the fields of aerospace, weaponry and automobile manufacturing, the lightweight of automobiles has gradually become a consensus, and the connection of lightweight alloys represented by aluminum alloys, magnesium alloys, titanium alloys, etc. Pay attention to. Due to the huge differences in the crystal structure, mechanical properties, physical properties and chemical properties of dissimilar metals, traditional joining techniques such as arc welding and resistance spot welding tend to generate brittle intermetallic compounds on the joining interface, resulting in heat-affected zones. A large stress gradient is formed, and it is difficult to obtain high-strength joints, which greatly limits the application of lightweight materials and dissimilar met...

AI Technical Summary

Problems solved by technology

However, excessive discharge voltage can easily lead to short coil life and damage to equipment. At the same time, the process window for dissimilar metal plate connection is narrowed, and the quality of connection joints is difficult to control, which greatly limits the promotion and application of magnetic pulse connection technology in the field of appeal.

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