Ngokungafaniyo neenkqubo zokususa izinto, i-aluminium extrusion yinkqubo yokwenza.Kwi-extrusion, i-aluminiyam ekrwada ifudunyezwa kuqala ize imiliselwe kwindawo efunekayo kusetyenziswa inkunzi yegusha ukuyityhala ngedayisi.I-aluminium extrusion isebenzisa ii-stocks ezijikelezayo ze-aluminium okanye i-aluminium alloy, ebizwa ngokuba yi-"billets", ukuvelisa iinxalenye ezineeprofayili ezinqamlekileyo kunye neemilo.
Ngokuyintloko, inkqubo ye-aluminium extrusion ifuna kuphela isithando somlilo kunye nomshicileli onokufa.I-extrusion, i-billet iqala ukufudumeza kwiqondo lokushisa eliphezulu ukuze liyenze i-ductile.Iqondo lobushushu linokuba kufutshane nobushushu begumbi okanye libe phezulu njengeqondo lobushushu bokuhlaziya kwakhona.Ngokusekelwe kulo bushushu, inkqubo ibizwa ngokuba yi-extrusion ebandayo, efudumele okanye eshushu.