Ipayipi elenza umugqa liyinqubo yokuguquguquka kwe-curvature eyinhlanganisela ye-longitudinal engalingani nokusebenza okuqhubekayo esigabeni esiphambanayo, futhi umucu ugotshwa ngamandla enqubo yokuguquguquka eneziqondiso eziningi.

Isimiso esiyisisekelo se-straight seam steel forming theory yisenzo samandla angaphandle ukukhiqiza ukuguqulwa kwepulasitiki komugqa wensimbi ube yisimo esifiswayo namashubhu osayizi. Njengoba ipayipi lensimbi ohlelweni lokuguqulwa kwendawo eyinhloko endaweni eqhubekayo evundlile futhi mpo, ukubopha okusetshenzisiwe kuhlelwa ngezici ezimbili ukuze kusetshenziswe futhi kudlule ukwakhiwa komqulu wokugaya, ukudlula kwe-roll kuwukwenza ukuguquguquka kwensimbi, umshini wokugoqa wensimbi uhlelelwe ukukhiqiza ukuguqulwa kwe-longitudinal, amamodeli athile okusebenza kanye nomehluko ohlukahlukene kwezobunjiniyela kuyinqubo eqhubekayo yokuguqulwa kwensimbi okufanele isetshenziswe ngezigaba, kusukela kumshini wokugaya ohambisanayo (kuhlanganise ne-roll groove kanye nokuhlelwa kokugaya) ukuze kuzuzwe. . I-deformation ye-longitudinal endaweni eginqikayo yepuleti isho ukuthi ibe yi-cylindrical shape deformation, i-tube cross-section transverse deformation isho ukuguquguquka kokugoba.

Inqubo yokwakhiwa kwamapayipi ihlukaniswe kabanzi yaba izigaba ezintathu: isigaba esinephrofayili engahluziwe, isigaba esimaphakathi soguquko kanye nesiteji sokwenza amapayipi afanayo, umgomo othi "ellipse a circle", okuholela ekuguquguqukeni kwezizathu zokuchitha uhlelo lokudlula luhluke kakhulu, ikakhulukazi ezimeni izindlela ze-classical, kukhona indlela yokugoba enqenqemeni, indlela yokugoba eyindilinga, isikhungo kanye nendlela yokugoba kamuva etholakala ku-radius eyodwa, i-double radius, indlela yokubumba “w”. Izimbali ezigogekile ezakha amarowu kanye nezimbali ezigogekile ziyahoxiswa, i-eksisi yayo enkulu eyisigaxa esiphambanayo ibheke ngakwelinye icala.