Ukucutshungulwa kokwakheka kwe-Stretch kuyindlela yokucubungula isitembu esebenzisa isikhunta ukwenza indawo engenalutho eyisicaba ibe ingxenye evulekile engenalutho.Njengenye yezinqubo eziyinhloko zokugxiviza, ukwelula kusetshenziswa kabanzi.Inqubo yokwelula ingasetshenziswa ukwenza i-cylindrical, i-rectangular, i-stepped, i-spherical, i-conical, i-parabolic nezinye izingxenye zodonga ezinokwakheka okungajwayelekile.Uma ihlanganiswe nezinye izinqubo zokwakheka izitembu, ingaphinda ikhiqize izingxenye ezinobunjwa obuyinkimbinkimbi..

Sebenzisa okokusebenza kokugxiviza ukuze kucutshungulwe imikhiqizo enwetshiwe, okuhlanganisa: ukucutshungulwa kokwelula, ukucutshungulwa kokwelula kabusha, ukuhlehlisa ukunwebeka nokuncipha kokucubungula ukwelula, njll. Ukucubungula ukwelula: Sebenzisa idivayisi yepuleti lokucindezela ukuze usebenzise amandla okubhoboza wepunch ukuze udonse ingxenye noma konke. wempahla eyisicaba ungene emgodini wesikhunta se-concave ukuze usenze sibe yisitsha esinephansi.Ukucutshungulwa kodonga oluseceleni lwesitsha esihambisana nokuqondisa okunwebekayo kuwukucubungula okumsulwa okunwebekayo, kuyilapho ukucutshungulwa okunwebekayo kweziqukathi ezinokwakheka kwe-conical (noma iphiramidi), iziqukathi ze-hemispherical, neziqukathi ze-parabolic surface kuhlanganisa nokwandisa ukucubungula.

Ukucutshungulwa kokwelula kabusha: okungukuthi, emikhiqizweni edonswe ngokujulile engakwazi ukuqedelwa kunqubo eyodwa yokwelula, kuyadingeka ukwelula umkhiqizo owenziwe ngemva kokucubungula ukwelula ukwandisa ukujula kwesiqukathi esakhiwe.

Ukuhlehla kokwelula ukucutshungulwa: Ukuhlehlisela emuva kwelula i-workpiece enwetshiwe enqubweni yangaphambilini, uhlangothi lwangaphakathi lomsebenzi luba uhlangothi olungaphandle, futhi ukucutshungulwa kokwenza ububanzi bangaphandle bube buncane kuba mncane.Emgodini wesikhunta se-concave esinobubanzi obuncane obungaphandle, ububanzi bangaphandle besitsha esingaphansi buyancipha, futhi ubukhulu bodonga buncishiswa ngasikhathi sinye, okungagcini nje ngokuqeda ukuphambuka kodonga, kodwa futhi. kwenza ubuso besitsha bushelelezi.

Okulandelayo kwethula izinhlobo ezimbili zokugxiviza kwensimbi nokwelula lapho kusetshenziswa imishini yokugxiviza:

1. Ukucubungula umdwebo we-Cylindrical + (Umdwebo ojikelezayo): ukwelula kwemikhiqizo ye-cylindrical.Kokubili i-flange nephansi kusesimweni sendiza, udonga oluseceleni lwesilinda luyi-axisymmetric, futhi i-deformation isatshalaliswa ngokulinganayo kumjikelezo ofanayo, futhi izinwele eziku-flange zonakalisiwe ukuze kubangele ukuguqulwa komdwebo ojulile.

2. Ukucutshungulwa komdwebo we-Ellipse + (Umdwebo we-Ellipse): Ukuwohloka kwezinwele ku-flange kuwukuwohloka okuqinile, kodwa inani lokuwohloka kanye nesilinganiso sokuguquguquka kuyashintsha ngokuhambisana nokuhambisana nokuma kwekhonta.I-curvature enkulu, inani elikhulu le-deformation yepulasitiki yoboya, futhi ngokuphambene, i-curvature encane, i-deformation yepulasitiki yoboya incane.