Comparison of deep drawability of AA5754-H22 and AA6061-T6 aluminum alloys for automotive applications
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Mehmet Ipekoglu
Abstract
Being one of the most commonly applied sheet metal forming processes in automotive industry, deep drawing technologies are challenged by the concerns of global warming for higher fuel economy requirements in the recent years. To reduce the weight of the vehicles in order to obtain fuel economy, lighter and safer materials are used in automotive industry. Aluminum alloys, due to their low density compared to steels, are an important group of materials, in particular for lightweight construction of vehicles. In this study, two different aluminum alloys, namely AA5754-H22 and AA6061-T6, are evaluated for their potential use in nonload bearing applications in commercial vehicles by comparing their deep drawability characteristics. For this purpose, they are characterized by uniaxial tensile and Nakajima tests. In the next step, the deep drawing experiments are performed under different levels of blankholder force. The distance of the cup center to the edge of the die is also evaluated to investigate the formability of the designed cup for commercial use and to obtain the required product quality.
Kurzfassung
Als einer der am häufigsten angewandten Metallblechumformprozesse im Fahrzeugbau bestehen bei den Tiefziehtechniken Herausforderungen bezüglich des Klimawandels in Bezug auf höhere Treibstoffwirtschaftlichkeitsanforderungen in den letzten Jahren. Um das Gewicht der Fahrzeuge für eine bessere Treibstoffwirtschaftlichkeit zu reduzieren, werden leichtere und sichere Werkstoffe in der Automobilindustrie verwendet. Aufgrund ihrer geringeren Dichte im Vergleich zu Stählen stellen Aluminiumlegierungen eine wichtige Werkstoffgruppe dar, insbesondere für den Fahrzeugleichtbau. In der diesem Beitrag zugrunde liegenden Studie wurden zwei verschiedene Aluminiumlegierungen, und zwar AA5754-H22 und AA6061-T6, bezüglich ihres potentiellen Gebrauchs für nicht lasttragende Anwendungen in kommerziellen Fahrzeugen evaluiert, indem ihre Tiefzieheigenschaften verglichen wurden. Zu diesem Zweck wurden sie mittels einachsiger Zugversuche und sogenannter Nakajima-Tests charakterisiert. Im nächsten Schritt wurden die Tiefziehexperimente unter verschiedenen Niveaus der Niederhaltekraft durchgeführt. Der Abstand des Zentrums zur Kante der Form wurde ebenfalls herangezogen, um die Formbarkeit der designten Tiefziehform für die kommerzielle Anwendung zu untersuchen und um die erforderliche Produktqualität zu erreichen.
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© 2017, Carl Hanser Verlag, München
Artikel in diesem Heft
- Inhalt/Contents
- Contents
- Fachbeiträge/Technical Contributions
- Determination of global and local cleavage fracture characteristics of high strength bolt steels
- Electroplating Ni-doped Mn-Co films on AISI 430 stainless steel as interconnects in solid oxide fuel cells (SOFC)
- Influence of surface microstructure and chemical compositions on grooving corrosion of carbon steel welded joints
- Method for determining the strain rate sensitivity factor for the Johnson-Cook model in Charpy tests
- Optimizing the visibility of X-ray phase grating interferometry
- Friction and wear properties of nano-carbon reinforced Cu/Ti3SiC2/C nanocomposites
- Influence of austenization temperature on microstructure and mechanical properties of a new ultra-high strength low alloyed steel
- Microstructural and mechanical characterization of the parabolic spring steel 51CrV4
- Comparison of deep drawability of AA5754-H22 and AA6061-T6 aluminum alloys for automotive applications
- Transformation of ferrite/carbide into austenite during continuous heating of a 100Cr6 bearing steel
- Effect of TiO2 nanoparticles on the microstructure evolution and crystallographic texture in magnesium
- Mechanical behavior of single-lap and double-lap adhesive joined composite parts
- FE simulation of plastic collapse and geometrical factors affecting the bending response of a tubular aluminum beam
- Effect of spark plasma sintering temperature on structure and phase composition of Ti-Al-Nb-based alloys
- Behavior of a graphene/epoxy composite used as thermal interface material for LED heat dissipation
- Introducing gear ratings and AGMA conversion factors for the steel spur gear design under bending fatigue
- Partial replacement of carbon black by nanoclay in butyl rubber compounds for tubeless tires
- Wear behavior of an epoxy/HNT composite
- Characterization and properties of industrial polymer matrix composite sanitarywares
- Normal deformation measurement of free surfaces on rocks under biaxial compression
Artikel in diesem Heft
- Inhalt/Contents
- Contents
- Fachbeiträge/Technical Contributions
- Determination of global and local cleavage fracture characteristics of high strength bolt steels
- Electroplating Ni-doped Mn-Co films on AISI 430 stainless steel as interconnects in solid oxide fuel cells (SOFC)
- Influence of surface microstructure and chemical compositions on grooving corrosion of carbon steel welded joints
- Method for determining the strain rate sensitivity factor for the Johnson-Cook model in Charpy tests
- Optimizing the visibility of X-ray phase grating interferometry
- Friction and wear properties of nano-carbon reinforced Cu/Ti3SiC2/C nanocomposites
- Influence of austenization temperature on microstructure and mechanical properties of a new ultra-high strength low alloyed steel
- Microstructural and mechanical characterization of the parabolic spring steel 51CrV4
- Comparison of deep drawability of AA5754-H22 and AA6061-T6 aluminum alloys for automotive applications
- Transformation of ferrite/carbide into austenite during continuous heating of a 100Cr6 bearing steel
- Effect of TiO2 nanoparticles on the microstructure evolution and crystallographic texture in magnesium
- Mechanical behavior of single-lap and double-lap adhesive joined composite parts
- FE simulation of plastic collapse and geometrical factors affecting the bending response of a tubular aluminum beam
- Effect of spark plasma sintering temperature on structure and phase composition of Ti-Al-Nb-based alloys
- Behavior of a graphene/epoxy composite used as thermal interface material for LED heat dissipation
- Introducing gear ratings and AGMA conversion factors for the steel spur gear design under bending fatigue
- Partial replacement of carbon black by nanoclay in butyl rubber compounds for tubeless tires
- Wear behavior of an epoxy/HNT composite
- Characterization and properties of industrial polymer matrix composite sanitarywares
- Normal deformation measurement of free surfaces on rocks under biaxial compression
