本文選題：J形坡口 + 自動脈沖TIG焊��； 參考：《焊接學報》2017年01期

【摘要】：核電壓力容器封頭由半球形封頭和多個圓管相貫構成,連接的焊縫為J形坡口,軌跡是球管相貫的空間曲線,位于封頭內部.由于該焊縫的特殊性,目前普遍采用手工焊接,質量與效率不佳.文中針對核電壓力容器封頭J形坡口的機器人自動焊接技術提出了一種多層多道焊填充策略.通過焊接結構分析,確定了J形坡口的焊接工藝分區(qū),提出了設定焊接層數(shù)、道數(shù)的焊接軌跡規(guī)劃方法,進而提出了焊接工藝參數(shù)的設定規(guī)則并據此對焊縫形狀進行控制.結果表明,應用文中提出的焊縫填充策略及焊縫形狀控制方法可獲得良好的焊縫成形.
[Abstract]:The head of nuclear pressure vessel is composed of hemispherical head and multiple round tubes. The weld seam is a J-shaped groove, and the track is the space curve of the spherical tube intersecting, which is located inside the head. Due to the particularity of the weld, manual welding is widely used at present, with poor quality and efficiency. In this paper, a multi-layer and multi-pass filling strategy is proposed for the robotic automatic welding of the J-shaped groove of the head of nuclear power pressure vessel. Through the analysis of welding structure, the welding process zoning of J groove is determined, and the method of welding trajectory planning is put forward, which sets the number of layers and passes, and then the rules of setting welding parameters are put forward and the shape of weld is controlled accordingly. The results show that good weld forming can be obtained by the proposed filling strategy and shape control method.
【作者單位】： 天津職業(yè)技術師范大學天津市高速切削與精密加工重點實驗室;天津大學材料科學與工程學院;中國第一重型機械集團核電石化事業(yè)部;
【基金】：國家自然科學基金資助項目(51475325) 天津市自然科學基金資助項目(14JCYBJC19100) 天津市高等學校創(chuàng)新團隊培養(yǎng)計劃資助項目(TD12-5043) 天津市高校“學科領軍人才培養(yǎng)計劃”資助項目(RC14-02)
【分類號】：TG409
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本文編號：1973949