Analysis and porthole die design for a multi-hole extrusion process of a hollow, thin-walled aluminum profile

L Chen, G Zhao, J Yu, W Zhang, T Wu - The International Journal of …, 2014 - Springer
The appropriate die design for multi-hole extrusion is still a challenging task because of the
complicated circumstances and large material deformation during extrusion process. In the …

Influence of the process setup on the microstructure and mechanical properties evolution in porthole die extrusion

F Gagliardi, T Citrea, G Ambrogio, L Filice - Materials & Design, 2014 - Elsevier
Industrial needs are becoming always more complex pushed by an ever more demanding
market and an increasingly fierce competition. Innovation and new products are the way …

A comparison of ram extrusion by single-holed and multi-holed dies for extrusion–spheronisation of microcrystalline-based pastes

M Zhang, SL Rough, R Ward, C Seiler… - International journal of …, 2011 - Elsevier
The use of multi-holed dies as an alternative to single-holed dies for generating extrudates
for spheronisation was investigated both in terms of extrusion and spheronisation …

[HTML][HTML] Assessment of metal flow balance in multi-output porthole hot extrusion of AA6060 thin-walled profile

X Xue, G Vincze, AB Pereira, J Pan, J Liao - Metals, 2018 - mdpi.com
For the porthole hot extrusion of a thin-walled tube based on metal flow, the role of the die's
structure should be focused on to achieve precision formation, especially for multi-output …

Experimental and numerical investigation of residual stresses around cold extrusion hole of ultrahigh strength steel

C Zhao, H Hu, Y Zhou, Y Gao, X Ren, Q Yang - Materials & Design, 2013 - Elsevier
In this work, the residual stresses around the cold extrusion hole surface of ultrahigh
strength steel specimen and the effects of key processing and design parameters have been …

Investigation on effects of die orifice layout on three-hole porthole extrusion of aluminum alloy 6063 tubes

C Zhang, G Zhao, H Chen, Y Guan, H Cai… - Journal of Materials …, 2013 - Springer
Currently, with the increasing demand of high production output, much attention is paid to
the research and development of multi-hole extrusion die. However, owing to the complexity …

Design of a multihole porthole die for aluminum tube extrusion

Y Guan, C Zhang, G Zhao, X Sun… - Materials and …, 2012 - Taylor & Francis
Currently, the design of extrusion dies is usually carried out on the basis of experience and
corrected after a number of trial extrusion runs before becoming usable. Thus, it is difficult to …

Finite element analysis and experimental study on forward, backward and forward-backward multi-hole extrusion process

RK Sahu, R Das, B Dash, BC Routara - Materials Today: Proceedings, 2018 - Elsevier
The present work investigates the multi-hole extrusion process. Forward, backward and
forward-backward multi-hole extrusions have been carried out to determine the extrusion …

Paste engineering: Multi‐Phase materials and multi‐phase flows

DI Wilson, SL Rough - The Canadian Journal of Chemical …, 2012 - Wiley Online Library
The multi‐phase nature of granular pastes, coupled with their non‐Newtonian rheology and
inherent inhomogeneity, makes characterisation and prediction of flow behaviour …

A finite element analysis on the effect of location of holes, die pockets and extrusion speed in multi-hole extrusion process

R Das, A Sarmah, DVN Lakshmi, A Sood - Procedia Engineering, 2014 - Elsevier
Extrusion process has proved its potential in bulk metal forming process since the industrial
development. The better product quality, mechanical property and the strength of the …