Ua rau Undercut Defects

Thaum lub sij hawm welding txheej txheem, yog hais tias ib tug kev nyuaj siab yog tsim nyob rau hauv lub ntug ntawm lub weld, ua rau lub weld seam yuav tsum tau qis dua cov khoom siv hauv paus, qhov kev nyuaj siab no yog hu ua undercut defect. Muaj ntau yam ua rau undercut tsis xws luag. Piv txwv li, welding sai dhau los yog siv cov vuam tam sim no, uas txhim kho cov arc, tuaj yeem ua rau muaj qhov tshwm sim ntawm qhov tsis xws luag. Tsis tas li ntawd, vuam qhov sib txawv ntawm qhov sib txawv vim muaj teeb meem nrog lub tshuab vuam lub vuam hlaws thaum lub sij hawm vuam txheej txheem tuaj yeem ua rau nws nyuaj rau cov hlau vuam kom rov ua dua, ua rau muaj qhov tshwm sim loj heev. Yog li ntawd, thaum lub sij hawm muab kauv steel yeeb nkab vuam ua haujlwm, nws yog ib qho tseem ceeb kom tsis txhob muaj qhov tshwm sim ntawm undercut defects ntau npaum li sai tau.