Mfiridwuma mu su horow a ɛwɔ paipu bender mu .

Bending of pipe by pipe bender is the same as of sheet metal. Wɔ bending a ɛho tew mu no, bere a paipu a ɛwɔ akyi diameter d ne ɔfasu no mu duru t bends wɔ abɔnten ahoɔden moment m adeyɛ ase no, paipu fasu a ɛwɔ neutral layer no akyi no kura tensile stress σ 1, paipu no fasu no bɛyɛ teateaa Compression stress of pipe wall inside neutral layer σ 1. Pipe fasuo no yɛ den. Bio nso, ntwemu no nsusuiɛ sesa firi kurukuruwa kɔ ɛkame ayɛ sɛ elliptical ɛnam ahoɔden F1 ne F2. a wɔaka abom no nti, sɛ deformation no yɛ kɛseɛ dodo a, abɔnten paipu fasuo no bɛma mpaapaemu aba na inner paip fasuo no bɛma wrinkle{6}} no aba.
Deformation degreed of pipes gyina bo a relative bending radius r/d ne relative thrility thickness T/D. dodow no ara bo a ɛyɛ r/d ne t/d no bo yɛ ketewaa no, dodow no ara dodow no ara deformation dodow{1}} sɛnea ɛbɛyɛ a wɔbɛhwɛ ahu sɛ forming quality of paip fittings, deformation deformation deformation ɛsɛ sɛ wodi so wɔ kwan a wɔfa so yɛ adwuma no mu ne ANDEND ANDEND FONTING FONTING FONTING FONTING FONTING THE ANDINGS AND THE BENTING AND WHT ANDS WH AND INS GEE Nanso nso wɔ ahwehwɛdeɛ a ɛfa paipu fittings. a ɛyɛ anohyetoɔ a ɛfa paipu fittings ho no bɛka nsɛm a ɛdidi soɔ yi ho:
1) elongation deformation a ɛsen biara wɔ tensile deformation zone a ɛwɔ neutral layer no akyi no ntra plastic a ɛma kwan ma ade no, na ɛde mpaapaemu ba;
2) Wɔ compression deformation zone a ɛwɔ neutral layer no mu no, structure a ɛyɛ tratraa a ɛwɔ tangential compressive stress no dwumadi ase no renhinhim nsen buckling no;
3) sɛ paipu fittings no wɔ ovality ahwehwɛde ahorow a, hwɛ sɛnea ne fã no kyinkyim no so;
4) Sɛ paipu fittings no wɔ ahoɔden ahwehwɛdeɛ a ɛbɛtumi agyina nhyɛsoɔ a ɛwɔ mu no ano a, ɛsɛ sɛ wɔdi anohyetoɔ a ɛyɛ fasuo no mu duru a ɛso tew no so.