Mmepụta nke na-ekpo ọkụ na-ekpo ọkụ na-enweghị ntụpọ tube perforation bụ nzọụkwụ kachasị mkpa nke nrụrụ, ọrụ ya bụ iyi tube siri ike na-agbanye n'ime oghere oghere. Dị ka ihe owuwu na deformation e ji mara ịkpọpu usoro nke ịkpọpu igwe nwere ike kewaa ot perforating usoro: oblique ịkpọpu akụkụ, ịkpọpu ọkpọ na nrụgide perforation, ịkpọpu akụkụ na oblique kasị n'ọtụtụ ebe na-eji, udi nke rotary ịkpọpu igwe na-apụta nwere mpịakọta, nje usoro (n'ịkpọpu). cone) na diski bụ atọ ụdị ịkpọpu igwe igwe na-akpụgharị igwe igwe eji eme ihe na obere, ebe nnukwu nkeji na-eji ụdị nje ịkpọpu akwụkwọ. A naghị ejikarị ọkpọ diski eme ihe. N'agbanyeghị na mpịakọta udi otú, iji hụ na tube aru na nweta ịkpọpu usoro nwere perforated cone (mpịakọta inlet cone), egwe ọka cone (roll outlet cone) na akpọrepu warara (oke òkè nke mbata cone na outlet cone). n'etiti ) ihe mejupụtara.

Mpịakọta piercer na-eji nchikota nke rollers na nhazi nke aka uwe rola, ma nke nnyonye anya ozugbo ma ọ bụ nchikota nnyonye anya gbakwunyere nchikota igodo. Ya mere, mgbe mpịakọta mpịakọta, rollers nwere ike ịga n'ihu na-ejigharị, iji belata ụgwọ ọrụ. Obere ihe na-akpụ akpụ na-ahọrọ karịa 45 ma ọ bụ 40Cr, kwụsịrị na iwe. Nnukwu rollers ọtụtụ 42CrMo, na-emenyụ na iwe. Ndị na-emepụta ihe ndị na-emepụta ihe ugbu a na-eji mgbagwoju anya karị, ụfọdụ ndị na-emepụta na-eji 45, 55 na ndị ọzọ na-emepụta ígwè nhazi carbon dị elu. Ụfọdụ ndị na-emepụta ihe na-eji 50Mn, 65Mn, 70Mn, 70Mn2Mo, 60CrMnMo alloy cast or forged; Ihe achọrọ oke ike siri ike anaghị ekwekọ, ụfọdụ chọrọ HB180-220, ụfọdụ chọrọ HB220-260. Iji welie aru nke nnukwu perforated rola izugbe nhazi omimi nke 0.8 ~ 1.2mm ntupu ụkpụrụ nke mbata cone.

Comprehensive ụlọ na mba ọzọ na-emepụta ihe onwunwe nhọrọ na ojiji, m na-eche: nhọrọ nke nkedo mpịakọta punch 50Mn, 60CrMnMo carbon ígwè na ihe ndị ọzọ kwesịrị ekwesị, otu nwere ezigbo ike na-eyi nguzogide, nke abụọ na-etinyere na nke ọ bụla na-atụgharị ụdị ọkpọkọ ihe. . Njikwa ike ike na HB200-240 nwere ezi uche karịa.