Bututun welded ƙananan diamitaHaka kuma ana kiran bututun karfe mai girman diamita, wato bututun karfe da ake yi ta hanyar walda farantin karfe ko kuma karfen tsiri bayan an datse.Tsarin samar da ƙananan diamita na welded bututu yana da sauƙi, ingantaccen samarwa yana da girma, akwai nau'o'in iri da ƙayyadaddun bayanai, kuma farashin kayan aiki kaɗan ne, amma ƙarfin gabaɗaya ya fi na bututun ƙarfe mara nauyi.Tun daga 1930s, tare da saurin ci gaba na ci gaba da samar da ingancin tsiri mai inganci da haɓaka fasahar waldi da dubawa, an ci gaba da haɓaka ingancin walda, kuma iri-iri da ƙayyadaddun bututun welded na ƙananan diamita suna ƙaruwa kuma maye gurbinsu a cikin ƙarin filayen bututu maras nauyi.Welded karfe bututu ne zuwa kashi madaidaiciya kabu welded bututu da karkace welded bututu bisa ga nau'i na weld.

Wuraren da aka yi amfani da su don ƙananan bututun walda, faranti ne ko ɗigon ƙarfe, waɗanda aka raba su zuwa bututun walda na tanderu, bututu masu walda da lantarki (juriya mai walƙiya), da bututun walda ta atomatik saboda tsarin waldansu daban-daban.Akwai nau'i biyu na bututun walda: madaidaiciyar bututu mai walƙiya da kuma bututu mai walƙiya.Saboda kamanninsa na ƙarshe, an raba shi zuwa bututu masu walƙiya zagaye da bututu masu siffa ta musamman (square, lebur, da sauransu).

Tsarin samar da ƙananan diamita welded bututu yana da sauƙi, haɓakar haɓaka mai girma, ƙananan farashi da ci gaba mai sauri.Ƙarfin bututun welded gabaɗaya ya fi na madaidaicin bututun welded.Ana iya samar da bututu masu welded tare da manyan diamita daga kunkuntar billets.Hakanan za'a iya samar da bututu masu welded tare da diamita daban-daban tare da billet ɗin faɗin iri ɗaya.Duk da haka, idan aka kwatanta da madaidaiciyar bututu mai tsayi iri ɗaya, tsayin weld ɗin yana ƙaruwa da 30 zuwa 100%, kuma saurin samarwa ya ragu.Don haka, ƙananan bututun welded ɗin mafi ƙanƙan daɗaɗɗen kabu, kuma manyan bututun masu waldaran diamita galibi suna waldawa ne.