Igwe anaghị agba nchara a na-eji billet eme ya.Obere-ọnụ ọgụgụ ígwè osisi, n'ihi enweghị nhazi ikike, ọ bụghị zuo na-esichara n'ime ígwè billets onwe ha, ma zuo oké-walled ígwè, mgbe oyi mmasị azụ ka factory ọtụtụ ugboro, nweta a nta size enweghị nkebi annealed, mgbe ahụ, na- ụlọ ọrụ nhazi nke ọma maka nhazi ọzọ.Akụkụ nke n'ime ọkpọkọ elu roughness emepụta ezipụla elu n'ime elu nke ígwè ọkpọkọ na-agwụ ike roller, iji nweta na-egbuke egbuke n'ime elu.Ma na usoro nke Rolling-agwụ ike mgbe ụfọdụ hụrụ n'ime ígwè anwụrụ na obere warping.Enwere ike imepụta akpụkpọ anụ Alice n'oge mpịakọta BUE na-agwụ ike, ọ nwere ike ịbụ nchara nchara n'onwe ya.

BUE na-ezo aka akwụkwọ mpịakọta na-agwụ ike, na-apụta n'ọnụ ọnụ obere mkpịsị ígwè na ike siri ike ya.Mgbe elu nke ígwè ọkpọkọ mpịakọta na-agwụ ike, ebe ọ bụ na workpiece ihe na-akpali mgbape, otú mgbawa na n'ihu ngwá ọrụ na-n'ịwa a otutu nsogbu na esemokwu n'ịwa a otutu ọnwụ okpomọkụ.N'ime oke okpomọkụ na nrụgide dị otú ahụ, akụkụ nke mgbawa ahụ na kọntaktị na ngwá ọrụ dị n'ihu n'ihi esemokwu, ọnụ ọgụgụ na-agba ọsọ na-ebelata, na-eme ka "ọkwa nọrọ."Mgbe ihe esemokwu ahụ, mgbe ọ dị ukwuu karịa ike njikọ dị n'etiti lattice dị n'ime, a ga-ejikọta "nkpuchi njide" na ụfọdụ ihe ahụ n'ihu n'akụkụ ọnụ nke ngwá ọrụ iji mepụta BUE.BUE ma ọ bụrụ na ahapụ ya n'elu igwe arụnyere, nhazi nke burrs, na-abawanye nhụsianya elu.Enweghị enweghị nkebi n'ime elu nke warp na mkpụrụ na-ejikọta na isi site na warped si, ọ bụghị mba ọzọ okwu na-arapara n'ahụ mkpụrụ mgbe extrusion.Ekwesịrị ịrapagidesi ike BUE na elu enweghị nkebi agaghị ejikọta ya na elu dị n'ime nke ọkpọkọ ígwè site na microstructure matrix nke anya.Ya mere, n'ime elu nke warp enweghị enweghị nkebi kwesịrị ịmepụta ọ bụghị site na-agwụ ike BUE mpịakọta na-akpụ, ma ọ bụghị ihe mba ọzọ e guzobere.Ihe na-agabiga n'etiti oyi abụọ a dọkpụrụ, oyi na-adọta ma mgbe ọ bụla recrystallization annealing, mgbe annealing olile anya inweta otu ezigbo ferrite na pearlite equiaxed grains.Ma microscopic sample nke ihe doro anya keadighi rarii grains, na nkesa bụ nnọọ enweghị isi na-ahụ na mpaghara Wilcoxon, ọ na-egosi ihe n'oge okpomọkụ ọgwụgwọ budata overheating.Mkpụrụ ọka na-adịghị mma na-emepụta mgbe ekpo oke ọkụ, bibiri ihe nhazi ọka ọka mbụ, mgbe oyi na-eru pearlite na ferrite ghọrọ banded pearlite na ferrite mfe stratification.Mgbe na-agwụ ike na ígwè mpịakọta, ngwá ọrụ na workpiece na oké ịpị ike, mgbe ahụ, ọkpọkọ ọ na-adịkarị mfe warping.O doro anya na ikpo oke ọkụ na ọgwụgwọ okpomọkụ, ọ bụ isi ihe kpatara ọgba aghara ọgbọ.

Ebe ọ bụ na a na-emepụta isi ihe kpatara warping n'oge ọgwụgwọ okpomọkụ nke ikpo ọkụ ígwè, ọ dị mkpa iji chịkwaa okpomọkụ na-ekpo ọkụ site n'ịchịkwa okpomọkụ na-ekpo ọkụ mgbe ígwè na-ekpo ọkụ na-ekpo ọkụ na-eme ka iji nweta otu ezi equiaxed ferrite na pearlite.Mkpụrụ ọka dị mma na-ejikọta ọnụ iji mee ka ọka ahụ dịkwuo nkọ, nke mere na ike na ike nke ígwè dị mma.

Ndị na-emepụta ọkpọkọ ígwè oyi na-atụ oyi iji chekwaa ego, na-ebelata ọnụ ọgụgụ nke ịbịaru, na oge ọ bụla nke kacha nta dị ka ọkpọkọ na-adọta, n'ihi ya, ọ nwere ike ime ka ọ na-adọkpụ n'elu ọkpọkọ ígwè nwere ike iguzogide oke, na ụbara nrụgide dị n'ime. ọkpọkọ, ígwè ọkpọkọ n'okpuru mpụga mmetụta site extrusion ntụpọ dị ka cracks mfe.Ya mere, okpomọkụ ọgwụgwọ okpomọkụ na-achịkwa mgbe ị na-achịkwa oke nchara oyi na-adọta ọ bụla dị ezigbo mkpa.