Optimization of the geometrical parameters for elevated temperature hydro-mechanical deep drawing process of 2024 aluminum alloy

Yaghoubi, Saeed; Fereshteh-Saniee, F.

doi:10.1177/0954408920949364

Cited by 19 publications

(9 citation statements)

References 20 publications

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“…The geometrical parameters of HMDD die set employed for the current research work (Fig. 3), have numerically been optimized for 2024 Al alloy in a separate research work by Yaghoubi and Fereshteh-Saniee [15].…”

Section: Methodsmentioning

confidence: 99%

A comprehensive study on soundness, microstructure, and uniformity of 2024 aluminum cups hydro-mechanically drawn at elevated temperatures

Yaghoubi

Fereshteh-Saniee

2022

Int J Adv Manuf Technol

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In the present research work, the hydro-mechanical deep drawing (HMDD) process of 2024 aluminum alloy is performed experimentally and numerically for elevated temperatures. The main variables of the forming process include the uid pressure, the pre-bulge pressure and the process temperature. The effects of these parameters on the thickness distribution and uniformity index of the nal product have been investigated. Using the hardness test, the preferred crystallographic orientation, the energy dispersive spectroscopy and microstructure images obtained from an optical microscope and a scanning electron microscope, the relationship between the grain size, hardness and the effective plastic strain are studied and discussed. The ndings imply that the HMDD process without the pre-bulge pressure reduces the uniformity of the nal product and, on the other hand, excessive increase in this parameter causes tearing of the workpiece. The hardness distribution along the cup wall was in agreement with grain re nement and the Hall-Petch relationship, but it was not correspond to the expectations made via the texture analyses. The images gained from the energy dispersive spectroscopy for different areas of the 2024 Al sample demonstrated that the Al 2 Cu precipitations in the product wall were ner than the other areas and mainly dispersed at the grain boundaries. This type of precipitation distribution was the main origin for increasing the hardness of the cup wall in comparison with the cup corner and bottom. In other words, the precipitation hardening overwhelmed the in uence of the preferred orientation of the grains in HMDD operation of Al 2024.

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Section: Methodsmentioning

confidence: 99%

A comprehensive study on soundness, microstructure, and uniformity of 2024 aluminum cups hydro-mechanically drawn at elevated temperatures

Yaghoubi

Fereshteh-Saniee

2022

Int J Adv Manuf Technol

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“…Yaghoubi et al. [ 74 ] stated that for the hydromechanical deep drawing process of 2024 al alloy; the punch radius, die entrance, and the punch-die clearance are mainly influenced parameters on the final product uniformity. The die radius is the main parameter for the hydro-mechanical process on wrinkling and erosion defects [ 58 ].…”

Section: Manufacturing Processes For Aluminum Lithium Alloysmentioning

confidence: 99%

A review of manufacturing processes, mechanical properties and precipitations for aluminum lithium alloys used in aeronautic applications

Hajjioui

Bouchaâla

Faqir

et al. 2023

Heliyon

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“…The demand of different markets requires an increase in knowledge in several areas, improving concepts of various processes, such as casting, injection and metal forming. 7 The constant search for products capable of improving vehicle safety, performance and aesthetics makes these some of the main focuses at the beginning of a new automotive design. Thus, the manufacturing processes have been the under intensive study and new research.…”

Section: Introductionmentioning

confidence: 99%

Design of a transfer system for the automotive industry

Nunes

Campilho

Silva

2022

Proceedings of the Institution of Mechanical Engineers, Part E:

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Continuous optimization of processes and products in automotive companies is necessary. The costumers’ demand is growing, making it necessary to increase the number of orders and reduce deadlines. All these changes showed that the processes used in the past are outdated and innovation is needed. Nonetheless, it is not viable to increase manpower or number of production lines without improving and optimizing the existing processes. This work aims to analyse and improve the efficiency of a stamping process of an automotive components’ manufacturer, arising due to the low overall equipment effectiveness (OEE) of transfer dies. Under this scenario, the transfer system should be modified to decrease the setup time and production stoppage, by producing a design that reduces the setup time at the time of changing components/specifications of the fabricated parts or changing the stamping tool. Several management tools were applied, such as failure mode and effects analysis (FMEA analysis) in the pre-design phase. A new concept was devised for the transfer system to increase its stability. The new design accomplished a significant reduction of setup times and production stops, and also a major weight reduction, leading to higher reliability.

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Optimization of the geometrical parameters for elevated temperature hydro-mechanical deep drawing process of 2024 aluminum alloy

Cited by 19 publications

References 20 publications

A comprehensive study on soundness, microstructure, and uniformity of 2024 aluminum cups hydro-mechanically drawn at elevated temperatures

A comprehensive study on soundness, microstructure, and uniformity of 2024 aluminum cups hydro-mechanically drawn at elevated temperatures

A review of manufacturing processes, mechanical properties and precipitations for aluminum lithium alloys used in aeronautic applications

Design of a transfer system for the automotive industry

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