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C. Q. Wang W. F. Feng National ho. of Advanced welding Technolgy HIT Harbin China 《金属学报(英文版)》2000,13(1):84-88
1.lhtroductionVariouskindofsolderalloysmtlstbedesignedthendevelopedtomeetfoeproductiondemandofelectronicdevices.APPlyingcalculationmethodshouldbehighlyeffectiveduetoitscharactersofinexpensivecost,highefficiencyandprediction.SelectingclustermodeliscrucialincalculationofquantUmtheoryandsomeregulationsneedtakingintoaccoUntisanalyzedbasingonthecalculationOfSn--basedalloydesign.2.corn--SchI0dingereqUationthatcandescribedthemovementofelectronscanbesolVedwithDV--\method(DiscreteVariationalX.)in… 相似文献
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激光焊缝跟踪是自动化焊接设备中比较成熟的焊枪导引系统。它开发于20世纪80年代初,并首先用于焊接机器人应用中。随着这项技术的日渐成熟,已被用在许多焊接自动化系统中。概述了激光焊缝跟踪系统在厚壁焊接,如压力容器、造船和管道生产等行业中的应用。 相似文献
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1.Arcweldinginverterhasbecomethefocusinthefieldofweldingpowerso~e,becauseofitssmallvolUIne,lightweight,goodconndingperfonnanceandaptnessforreal--timecontrollingofweldingprocess.HoWeVer,beingasophisticatedpowerelectIDnicdevice,theweldinginvertercanhaullybedevelopedusingconventionaltrial--and--failmethod.Besidesthelargehumanandmaterialresourcesandconsiderablebine,therearePchemsthatareinsolVable.ThisisespeciallytrUefortherecentlydevelopedsoftswitchingpowersources,inwhichseveralworkingmodesexi… 相似文献