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 …
through finite element analysis for aluminum alloys of 6xxx series. The die design and …
[HTML][HTML] Charge weld evolution in hollow aluminum extrusion: Experiments and modeling
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 …
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
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 …
needs to be accurately predicted in order to avoid profile mechanical failures or to minimize …
FEM validation of front end and back end defects evolution in AA6063 and AA6082 aluminum alloys profiles
The reduction of scraps related to back end defects (ie billet skin contamination) and front
end defects (ie charge welds) is gaining nowadays an increasing industrial interest in order …
end defects (ie charge welds) is gaining nowadays an increasing industrial interest in order …
Scrap assessment in direct extrusion
B Reggiani, T Pinter, L Donati - The International Journal of Advanced …, 2020 - Springer
The continuous direct extrusion is an economic and efficient process to manufacture high-
quality aluminium profiles. However, because of multiple billets processing, transient defects …
quality aluminium profiles. However, because of multiple billets processing, transient defects …
Continuous hot extrusion with a stationary valve
J Gebhard, A Schulze, T Clausmeyer, AE Tekkaya - CIRP Annals, 2023 - Elsevier
The novel continuous extrusion process was invented to enable constant material flow at the
die exit during the dead cycle time and to reduce scrap. The process is a combination of …
die exit during the dead cycle time and to reduce scrap. The process is a combination of …
Extrusion of light and ultralight alloys with liquid nitrogen conformal cooled dies: process analysis and simulation
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 …
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 …
joined together under high hydrostatic pressure, forming a single extruded profile …
Comparison of experimental methods to evaluate seam welds quality in extruded profiles
B Reggiani, L Donati - Transactions of Nonferrous Metals Society of China, 2020 - Elsevier
The wedge and bulge expansion tests were compared in the assessment of the seam welds
strength in a tubular profile extruded at two ram speeds. In the wedge test, the expansion …
strength in a tubular profile extruded at two ram speeds. In the wedge test, the expansion …
Effect of Die Design on Charge Welds in Aluminium Extrusion
Aluminium extrusions are used in more and more applications in different industrial fields,
due to their properties and productivity. However, in-process scrap produced in aluminium …
due to their properties and productivity. However, in-process scrap produced in aluminium …