Flux-cored arc vuam (FCAW lossis FCA) yog txheej txheem semi-automatic lossis tsis siv neeg arc vuam txheej txheem. FCAW yuav tsum tau noj cov khoom siv hluav taws xob tsis tu ncua uas muaj cov khoom siv hluav taws xob thiab qhov hluav taws xob tsis tu ncua lossis, feem ntau, tsis tu ncua-tam sim no vuam fais fab mov. Qee zaum cov khoom siv hluav taws xob tiv thaiv sab nraud yog siv, tab sis feem ntau cov flux nws tus kheej yog tso siab rau los tsim kom muaj kev tiv thaiv tsim nyog los ntawm huab cua, ua rau ob qho tib si kev tiv thaiv gaseous thiab kua slag tiv thaiv vuam. Cov txheej txheem yog dav siv nyob rau hauv kev tsim kho vim nws siab vuam ceev thiab portability.
FCAW yog thawj zaug tsim nyob rau hauv thaum ntxov 1950s raws li ib tug lwm txoj rau shielded hlau arc vuam (SMAW). Qhov zoo ntawm FCAW tshaj SMAW yog tias kev siv cov nplaum nplaum siv hauv SMAW yog qhov tsis tsim nyog. Qhov no tau pab FCAW kom kov yeej ntau qhov kev txwv cuam tshuam nrog SMAW.
