The precision forming of thin-walled components has been urgently needed in aviation and
aerospace field. However, the wrinkling induced by the compressive instability is one of the …

Achieving small-radius bending of difficult-to-form tubular materials with large-diameter, thin-
walled (LDTW, D/t> 20) geometry—as well as the properties of high-strength poor-hardening …

Aluminium alloy (Al-alloy) tubes, especially large-diameter thin-walled tubes with a tough
bending radius, have been widely utilised in different industrial clusters owing to their high …

Neutral layer shifting (NLS) is the most fundamental phenomenon during tube bending,
which characterizes tension-compression (TC) non-uniform bending deformation and …

Thin-walled bent tubes with small bending radius are one of the key components used in
airspace and aerospace launch vehicles and various electrical equipment. Traditional …

Implicit elastoplastic finite element (FE) analyses of rotary draw tube bending (RDTB) with a
ball-and-socket-type mandrel were conducted with an emphasis on accurate prediction of …

Wrinkling is one of the most fatal defects of metal tube bending, which may seriously affect
the forming quality and even lead to forming failure. Traditional wrinkling prediction methods …

In response to the increased demand for high dimensional accuracy and mechanical
properties of formed metal products, this research aims to provide new insights into the …

In this study, theoretical modelling and finite element simulations were performed to reveal
the forming mechanics of involute components based on a 3D free bending process. During …

The quality of tubes obtained by rotary draw bending (RDB) depends on many process
parameters whose selection is essential to prevent defects such as fracture, wrinkling …