Pipe Bender a hpaji masa

Pipe bender by pipe bender hte shingdaw ai lam gaw, sheet metal. hte bung ai, san seng ai bending a mabyin hta, shinggan diameter D hte bunghku a n-gun rawng ai pipe gaw, shinggan n-gun atsam moment M a action npu hta shinggrup nga ai shaloi, neutral layer shinggan na pipe bunghku gaw, n-gun n rawng ai stress σ 1 hpe hkam la ai shaloi, pipe bunghku gaw grau htum mat wa ai; σ 1. n-gun n rawng ai layer kata na pipe bunghku a compression stress gaw grau htum mat wa ai. Dai hta n-ga, cross section a hkrang gaw, grup yin kaw nna elliptical de galai shai mat ai, hpa majaw
n-gun n rawng ai radius R/D hte relative thickness t/D{0}} R/D hte t/D a manu kaji yang, deformation℃a manu kaba wa yang, pipe fittings ni a quality hpe hkrang shapraw ra ai hpe kam na matu, dat dat mai ai range a kata kaw na deformation℃hpe hkang ra ai. arung arai ni, raitim, pipe fittings ni hpe jai lang ra ai lam ni hta mung, pipe fittings ni a hkrang shapraw ai shadawn shadang hta lawu na lam ni lawm ra ai:
1) Neutral layer shinggan na tensile galai shai ai shara hta, n-gun n-gun n-gun yawm ai lam gaw, plastic ahkang jaw ai manu hta n jan ai majaw, n-gun n rawng ai;
2) Neutral layer a kata maga na compression deformation zone hta, n-gun n rawng ai n-gun rawng ai n-gun rawng ai n-gun atsam gaw, n-gun n-gun n-gun n-gun n-gun n-gun n-gun n-gun n-gun n-gun n-gun n-gun n-gun n-gun n-gun n-gun n-gun n-gun n-gun n-gun n-gun n-gun yawm mat na re;
3) Pipe fittings ni hta ovality ra ai lam ni nga yang, shi a daw hpe galai shai ai lam hpe hkang lu na;
4) Pipe fittings ni hta kata na n-gun hpe hkam jan lu na matu n-gun ra ai lam ni nga ai rai yang, bunghku a n-gun shayawm ai lam a hkrang hpe hkang lu na n rai.