Advancements in extrusion and drawing: a review of the contributes by the ESAFORM community

L Donati, B Reggiani, R Pelaccia, M Negozio… - International Journal of …, 2022 - Springer
The present review paper would celebrate the 25 years anniversary of the ESAFORM
association by summarizing the studies performed by the delegates of the ESAFORM …

Optimization of die design for extrusion of 6xxx series aluminum alloys through finite element analysis: a critical review

E Giarmas, D Tzetzis - The International Journal of Advanced …, 2022 - Springer
This paper presents an overview of the recent advances in optimization of die design
through finite element analysis for aluminum alloys of 6xxx series. The die design and …

Formation mechanism and optimization strategy of surface back-end defects in miniature complex hollow extruded profile

Y Liu, X Wang, J Xu, D Shan, B Guo - Journal of Materials Processing …, 2022 - Elsevier
Back-end defects present a crucial problem in the extrusion of aluminum alloy profiles,
particularly in miniature complex hollow profiles. In this study, the formation mechanism and …

[HTML][HTML] Charge weld evolution in hollow aluminum extrusion: Experiments and modeling

EC Sariyarlioglu, M Negozio, T Welo, J Ma - CIRP Journal of Manufacturing …, 2024 - Elsevier
Charge welds occur in billet-to-billet extrusion processes due to the transition between
successive billets. The material in this transition zone is typically characterized by …

Finite element model prediction of charge weld behaviour in AA6082 and AA6063 extruded profiles

M Negozio, R Pelaccia, L Donati, B Reggiani… - Journal of Materials …, 2021 - Springer
Charge welds are unavoidable defects of the continuous extrusion process whose extension
needs to be accurately predicted in order to avoid profile mechanical failures or to minimize …

Numerical, experimental, and analytical investigation of the skin contamination evolution in the extrusion of different industrial profiles

M Negozio, R Pelaccia - The International Journal of Advanced …, 2024 - Springer
In the context of aluminum alloy extrusion, the presence of the skin contamination defect
imposes the scrap of the contaminated profile length due to its lower mechanical properties …

FEM Analysis of the Skin Contamination Behavior in the Extrusion of a AA6082 Profile

M Negozio, R Pelaccia, L Donati… - Key Engineering …, 2022 - Trans Tech Publ
In the extrusion of aluminum alloys, the skin contamination lead to the scra** of the profile
extent in which this defect occurs. In order to optimize the scra** process, extrusion …

Extrusion of light and ultralight alloys with liquid nitrogen conformal cooled dies: process analysis and simulation

R Pelaccia, M Negozio, L Donati, B Reggiani… - Journal of Materials …, 2021 - Springer
The die cooling by means of liquid nitrogen is a widely adopted industrial practice used to
increase the production rate in the hot extrusion process of light alloys. The development of …

Phase Field Method for the Assessment of the New-Old Billet Material Interaction during Continuous Extrusion Using COMSOL Multiphysics

S Di Donato, R Pelaccia, M Negozio - Journal of Materials Engineering …, 2024 - Springer
During the hot extrusion process of metals, billets are continuously loaded into the press and
joined together under high hydrostatic pressure, forming a single extruded profile …

An investigation on the cause for the formation of blisters in the extruded aluminum channels for ladder application

HM Vishwanatha, MK Swetha, V Vijayan… - International Journal on …, 2022 - Springer
A systematic study on determining the cause for the formation of blisters in the extruded
alumi-num channels has been presented in this article. An extrusion of aluminum billets for …