(1) Umehluko phakathi kokusebenza okushisayo nokusebenza okubandayo: ukuginqika okushisayo kuyashisa, kanti ukudweba okubandayo kuwukusebenza okubandayo.Umehluko omkhulu: ukugoqa okushisayo kuginqika ngaphezu kwezinga lokushisa le-recrystallization, ukugoqa okubandayo kuginqika ngaphansi kwezinga lokushisa lokuvuselela kabusha;ukugoqa okubandayo ngezinye izikhathi kuyashiswa, kodwa izinga lokushisa liphansi, ngoba ukucutshungulwa kwenzeka ngemva kokugoqa okubandayo, uma izidingo zokwakha izinto ziphakeme kakhulu, kufanele kukhishwe.

Ukugoqwa okubandayo kanye nokugoqwa okushisayo ngokuvamile amapuleti noma amaphrofayili, kuyilapho adonswa ngokubanda ngokuvamile kuyizintambo eziyisilinda eziphambanayo.Ukwengeza, amapuleti agingqiwe ashisayo ngokuvamile ayizinsimbi ezinokuqukethwe okuphezulu kwe-alloy namandla aphakeme, kuyilapho izinsimbi ezigoqekayo ziyizinsimbi ezinekhabhoni ephansi kanye ne-alloy ephansi.Ukugoqa okubandayo kungakhuphula amandla futhi kuqinisekise ikhwalithi ephezulu yezinto.

Umehluko phakathi kwepayipi lensimbi engenamthungo elidonswa ngokubanda kanye nepayipi lensimbi elingenamthungo eligoqwe elishisayo lihlukile kulelo lamapuleti.

Amapayipi ensimbi angenamthungo ahlukaniswe abe amapayipi ensimbi agingqiwe (extruded) angenamthungo kanye namapayipi ensimbi adonswa ngokubanda (agingqelwe) ngenxa yezinqubo zawo ezihlukene zokukhiqiza.

Amapayipi ensimbi adonswa ngokubanda ngokuvamile adinga ukudonswa izikhathi eziningi, futhi kufanele kube khona ukunqanda ukucindezelwa okuhambisanayo phakathi komdwebo ngamunye ukuze kuqinisekiswe ukuqhubeka kahle komdwebo olandelayo obandayo.Kusukela ekubukeni, amapayipi ensimbi angenamthungo agoqelwe ngamakhaza avame ukuba mancane ngobubanzi, futhi amapayipi ensimbi angenamthungo agoqelwe ashisayo ngokuvamile anobubanzi obukhulu.Ukunemba kwepayipi lensimbi eligoqelwe ngokubanda elingenamthungo liphakeme kunalelo lepayipi lensimbi elingenamthungo eligoqelwe ngokushisayo, futhi intengo nayo iphakeme kunaleyo yepayipi lensimbi eligoqelwe elingenamthungo.Amapayipi abandayo adonswa angenamthungo ngokuvamile anezinga elincane, ngokuvamile elingaphansi kuka-127mm, ikakhulukazi ukunemba kobubanzi bangaphandle bamapayipi angenamthungo adonswa abandayo aphakeme kakhulu, futhi ubude bamapayipi angenamthungo adonswa abandayo ngokuvamile bufushane kunamapayipi angenamthungo agingqiwe ashisayo.Ngokuqina kodonga, amapayipi angenamthungo adonswa ngokubanda ayafana kakhulu kunamapayipi angenamthungo agingqiwe ashisayo.