Umgca wokusika we-mold yinxalenye apho i-molds ephezulu nesezantsi ilumana, kwaye ngokubanzi ifuna ukucinywa komlilo. Ngethuba lenkqubo yokubumba i-SMC, imiphetho yemveliso ifakwe phakathi kweemida ezisikiweyo.
Iqondo lokushisa lokubumba lichaphazela ngokuthe ngqo umgangatho wokubumba kunye nokusebenza kakuhle kwemveliso yemveliso, ngoko ke inkqubo yokufudumala kufuneka ifakwe kwi-mold ukuhlangabezana nemfuneko efanelekileyo yokushisa.
Ukuchaneka komatshini wokungunda omtsha ikakhulu kunemiba emithathu: ukunyamezela kwe-dimensional, ukunyamezela kwejometri kunye noburhabaxa bomhlaba. Iimfuno zokuchaneka kokulungiswa esihlala sizibeke phambili kubavelisi bomngundo ubukhulu becala kukunyamezelana ngokwemilinganiselo kunye noburhabaxa bomphezulu. Unyamezelo lweDimensional lwahlulahlulwe ngokwe: ubungakanani benkcazo kunye nobungakanani bomqolo.
Ukuze kuphuculwe ukunyanzeliswa kokunxiba kunye nokumelana nokubola kwendawo yokubumba, ihlala iphantsi konyango olufanelekileyo lomphezulu.
Ukuze udilize ngokulula imveliso, qinisekisa ukuchaneka kwemveliso, amandla kunye nokukhululeka kokulungiswa kwesikhunta, ukukhethwa kweendawo zokwahlula kufuneka kuthathelwe ingqalelo le migaqo ilandelayo.
I-smc mold kufuneka ifudunyezwe, ingapholiswa. Iqondo lokushisa lokubumba lihlala liphakathi kwe-140 kunye ne-160. Kuyilo lokubumba, ukugcina ukushisa kwesikhunta kubaluleke kakhulu. Ukubumba kulula ukuzalisa, imveliso ayikhuli lula, kwaye umphezulu ungcono. Iinkqubo zokufudumeza ezisetyenziswa ngokuqhelekileyo ngumphunga, i-oyile, amanzi anoxinzelelo oluphezulu okanye umbane. Xa ubushushu benkqubo yoyilo lokubumba lunika ingqwalasela ekhethekileyo ukwenza ubushushu bobumba kwindawo yonke buhambelane, ubushushu obufanayo bunokunciphisa i-deformation, ukuphucula ubungakanani bozinzo, kunye nokufana kwendawo yemveliso.