Umbhobho we-ERW kunye nombhobho we-LSAW zombini ziipayipi ezidityanisiweyo ezithungelweyo ngomthungo othe tye, ezisetyenziselwa kakhulu ukuthuthwa kolwelo, ingakumbi iipayipi ezikude zeoyile negesi. Umahluko ophambili phakathi kwezi zimbini yinkqubo yokudityanisa. Iinkqubo ezahlukeneyo zenza umbhobho ube neempawu ezahlukeneyo kwaye zilungele iimeko ezahlukeneyo zokusetyenziswa.

Ityhubhu ye-ERW isebenzisa ukuwelda okuxhathisayo okunamandla aphezulu kwaye isebenzisa iikhoyili zentsimbi ezijijekileyo ezishushu njengezinto zokwenza imveliso. Njengenye yeepayipi ezisetyenziswa kakhulu namhlanje, ngenxa yokusetyenziswa kwee-strips/coils zentsimbi ezijijekileyo ezinemilinganiselo efanayo nechanekileyo njengezinto zokwenza imveliso, ineengenelo zokuchaneka okuphezulu, ubukhulu bodonga obufanayo, kunye nomgangatho olungileyo womphezulu. Ityhubhu ineengenelo zokuwelda okufutshane kunye noxinzelelo oluphezulu, kodwa le nkqubo inokuvelisa kuphela iipayipi ezincinci neziphakathi ezinobubanzi obuncinci (kuxhomekeke kubukhulu bomcu wentsimbi okanye ipleyiti yentsimbi esetyenziswa njengezinto zokwenza imveliso). Umthungo wokuwelda uthambekele kumabala angwevu, angadibaniyo, kunye neziphene zokubola. Iindawo ezisetyenziswa kakhulu ngoku kukuthuthwa kwemveliso yegesi kunye neoyile eluhlaza ezidolophini.

Umbhobho we-LSAW wamkela inkqubo yokuwelda ye-arc engaphantsi komhlaba, esebenzisa ipleyiti enye enobukhulu obuphakathi njengezinto eziluhlaza, kwaye yenza ukuwelda kwangaphakathi nangaphandle kwindawo yokuwelda kwaye yandise ububanzi. Ngenxa yoluhlu olubanzi lweemveliso ezigqityiweyo ezisebenzisa iipleyiti zentsimbi njengezinto eziluhlaza, ii-welds zinobunzima obuhle, i-plasticity, i-uniformity kunye ne-compactness, kwaye zineengenelo zobubanzi obukhulu bepayipi, ubukhulu bodonga lwepayipi, ukumelana noxinzelelo oluphezulu, ukumelana nobushushu obuphantsi kunye nokumelana nokugqwala. Xa kwakhiwa imibhobho yeoyile negesi enamandla aphezulu, ukuqina okuphezulu, umgangatho ophezulu, uninzi lweemibhobho zentsimbi ezifunekayo ziipayipi ezihlanganisiweyo ze-arc ezingaphantsi komhlaba ezinobubanzi obukhulu. Ngokomgangatho we-API, kwimibhobho emikhulu yeoyile negesi, xa kudlula kwiindawo zeKlasi 1 kunye neKlasi 2 ezifana neendawo ze-alpine, ulwandle, kunye neendawo zasezidolophini ezinabantu abaninzi, imibhobho ehlanganisiweyo ye-arc engaphantsi komhlaba engqindilili yiyo yodwa uhlobo lombhobho olukhethiweyo.