Ana samar da bututun da aka welded ta hanyar ciyar da farantin karfe mai zafi ta hanyar masu siffa da za su mirgina shi zuwa siffa maras kyau.Yin matse ƙarshen farantin da ƙarfi tare zai haifar da haɗin gwiwa ko ɗinka.Hoto 2.2 yana nuna farantin karfe yayin da yake fara aikin samar da bututu mai walda

Mafi ƙanƙanta na hanyoyin uku shine bututu mai walda.Ana yin bututu mai kakakku ne ta hanyar karkatar da ɗigon ƙarfe zuwa siffa mai karkace, kama da wanzami's sandar, sa'an nan waldi inda gefuna suka haɗu da juna don samar da wani dinki.Wannan nau'in bututun yana iyakance ga tsarin bututu ta amfani da ƙananan matsi saboda bakin bangon sa.Hoto na 2.3 yana nuna bututu mai walda kamar yadda yake bayyana kafin waldawa.

Kowace daga cikin hanyoyi guda uku na samar da bututu yana da amfani da rashin amfani.Bututu mai walda, alal misali, ana samuwa ne daga farantin birgima wanda ke da kaurin bango iri ɗaya kuma ana iya bincikar lahani kafin a yi da walda.Wannan hanyar masana'anta yana da amfani musamman lokacin da ake buƙatar ganuwar bakin ciki da tsayin tsayi.Saboda kabu mai walda, duk da haka, a koyaushe akwai yuwuwar lahani da ke tserewa yawancin binciken kula da ingancin da aka yi yayin aikin masana'anta.

Sakamakon haka, Cibiyar Matsayin Ƙasa ta Amirka (ANSI) ta samar da ƙayyadaddun ƙa'idodi don kera bututu.An rubuta lambar bututun matsin lamba B31 don sarrafa sarrafa bututu.Musamman, lambar B31.1.0 tana ba da ƙimar ƙarfi na 85% don bututu mai birgima, 60% don bututu mai karkace, da inganci 100% don bututu mara nauyi.

Gabaɗaya, mafi girman kauri na bango ana samar da su ta hanyar da ba ta dace ba.Duk da haka, don yawancin ƙananan amfani da bututu, ci gaba da welded hanya ita ce mafi tattalin arziki.Ana samar da bututu mara ƙarfi a cikin tsayin bazuwar guda da ninki biyu.Tsawon bazuwar guda ɗaya ya bambanta daga 16"-0"zuwa 20"-0".Bututu 2"kuma a ƙasa ana samun su cikin bazuwar tsayi biyu masu aunawa daga 35"-0"zuwa 40"-0".