Control of Velocity, Driving Pressure, and Planarity During Flyer Launch with Vaporizing Foil Actuator

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dc.contributor.authorHansen, S. R.
dc.contributor.authorVivek, A.
dc.contributor.authorDaehn, G. S.
dc.contributor.editorHuh, H.
dc.contributor.editorTekkaya, A. E.
dc.date.accessioned2014-07-14T10:38:43Z
dc.date.available2014-07-14T10:38:43Z
dc.date.issued2014
dc.description.abstractElectrically-driven rapid vaporization of thin conductors produces a high-pressure pulse which can be used to accelerate thin metal sheets to high velocities. Recently, vaporizing foil actuators (VFA) have been applied toward a variety of impulse-based metalworking operations such as collision welding, closed-die forming, embossing, and shearing. To better apply VFA to different purposes, it is necessary to develop an understanding of how variations on the characteristics of the foil actuator affect its mechanical impulse generation. In this work, actuators made out of 0.0508, 0.0762, and 0.127 mm thick full hard temper AA1145 foil were used to launch 0.508 mm thick AA2024-T3 sheets toward a photonic Doppler velocimeter (PDV) probe. Launch velocities ranging between 300 and 1000 m/s were observed over a distance of less than 3 mm, and repeated trials demonstrated repeatable results. Velocity, current and voltage traces were used to examine the effect of deposited energy on average pressure and resulting velocity for foil actuators of various thicknesses. The planarity of the flyer sheets’ launch and flight was demonstrated with 0.0762 mm foil actuators by experiments that employed multiple PDV probes simultaneously recording the velocity evolution at different locations across the surface of the flyer.en
dc.identifier.urihttp://hdl.handle.net/2003/33493
dc.identifier.urihttp://dx.doi.org/10.17877/DE290R-732
dc.language.isoende
dc.relation.ispartof6th International Conference on High Speed Forming, March 27th-29th 2014, Daejeon, Koreaen
dc.subjectImpulse metalworkingen
dc.subjectVaporizing foil actuator (VFA)en
dc.subjectCollision weldingen
dc.subject.ddc620
dc.subject.ddc670
dc.titleControl of Velocity, Driving Pressure, and Planarity During Flyer Launch with Vaporizing Foil Actuatoren
dc.typeTextde
dc.type.publicationtypeconferenceObjectde
dcterms.accessRightsopen access

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