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Development of Hand-Held Electromageetic Riveter

Author: CuiJunJia
Tutor: LiChunFeng
School: Harbin Institute of Technology
Course: Materials Processing Engineering
Keywords: electromagnetic riveting stress-wave Hand-held electromagneticriveter composite
CLC: TG938
Type: Master's thesis
Year: 2008
Downloads: 58
Quote: 1
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Abstract


Electromagnetic riveting (EMR) is a new kind of technology that is based onelectromagnetic forming and traditional riveting technologies. Compared withthe traditional riveting, EMR is characterized by high loading rate of speed, rivetshaft expansion uniform and process quality consistency, which contribute toform hard deformation material and large diameter rivet. EMR is one of idealprocess methods to realize composite interference-fit riveting.The first part of the paper introduced the characteristic of the EMR and thedevelopment of EMR on abroad and internal. At the same time, the paperanalyzed the problems existed in EMR on present and the ways of investigatingEMR.The theory part of the paper first introduced the theory of stress-wave.,through this , we got two different ways of spreading during the wave flash backand fold . We got the mold of vibration isolation system of the Hand-Heldelectromagnetic riveter. The mold included a piece of rubber and a spring.According to the system, we established a flat-top building using of Simulink inMatlab. On the building we could change any date of the system to get the bestresult .All these were to Guide the design of the Hand-held electromagneticriveter. Paper considered many factors to control the weight and decrease therecoil force.The experiment part of the paper first changed electrical parameters to makethe rivet forming so as to be the basic for the following experiment .We foundthat the coil have a high temperature and changed the conducting wire. Secondly,we carried the simulating experiment and the electromagnetic rivetingexperiment to join the composite and aluminum alloys sheet with TA1 rivets. Thetechnology simulating experiment revealed: the deformation degree increasesgradually as the raise of the discharge energy. The electromagnetic rivetingexperiment adopted aluminum alloys sheet and composite .The result of theelectromagnetic riveting experiment was good, and the compound materialswasn’t destroyed in different voltage. At last, according to shortcomings in theactual operation of the Hand-held electromagnetic riveter, we brought up improvement methods.

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CLC: > Industrial Technology > Metallurgy and Metal Craft > Fitter process and assembly process > Bench work method and its equipment > Riveting
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