Study on the Technology and Defects in Low-Pressure Semi-Solid Die Casting of Aluminum Alloy Wheel Hub

Wang, Rui; Zhu, Hui; Zhang, Heng Hua

doi:10.4028/www.scientific.net/amr.936.1791

Cited by 3 publications

(4 citation statements)

References 8 publications

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“…Tensile properties at inner rim and outer rim are both reached 280MPa. But the spoke is lower, because it is thicker and easy lead to shrinkage during solidification [10]. The better property for LPSSDC wheel is that semi-solid forming can get the nearly spherical or rod-like microstructure.…”

Section: Resultsmentioning

confidence: 99%

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Effect of Heat Treatment on the Resistivity and Mechanical Property of Low-Pressure Semi-Solid Die Cast Aluminum Alloy Wheel

Wang

Meng

Zhang

2015

AMR

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Study the property and resistivity of Low-pressure semi-solid die casting ( LPSSDC) aluminum wheel hub after heat treatment. The Brinell hardness has reached more than 100HB in all position. Tensile properties at inner rim and outer rim are both reached 280MPa. The result of resistance analysis on LPSSDC aluminum wheel hub is below. The resistivity of the material is only influenced by the supersaturated solid solution (SSSS), GP zone, metastable phase β 'and stable phase β (Mg2Si). The resistivity has a decline during aging 0-0.5h and 0.75-8h, and an increasing during 0.5-0.75h. The resistivity remains stably when the decomposition of the solid solution achieved a dynamic balance after 8h aging time.

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Section: Resultsmentioning

confidence: 99%

“…Tensile properties at inner rim and outer rim are both reached 280MPa. But the spoke is lower, because it is thicker and easy lead to shrinkage during solidification[10].…”

mentioning

confidence: 99%

Effect of Heat Treatment on the Resistivity and Mechanical Property of Low-Pressure Semi-Solid Die Cast Aluminum Alloy Wheel

Wang

Meng

Zhang

2015

AMR

Self Cite

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“…So far, many investigations have been carried out focusing on process technology, microstructure optimization, and mechanical properties of the wheels. [6][7][8] However, there are relatively few studies on low-cycle fatigue (LCF) behaviors, 9,10 except for several studies on crack propagation in the wheels. 11,12 In fact, the existence of complex cyclic loads during service inevitably leads to cyclic deformation and fatigue damage, and the failure mechanism is the plastic deformation of the material under LCF loads.…”

Section: Introductionmentioning

confidence: 99%

“…In particular, the 2014 aluminum alloy is an ideal alloy material for aircraft wheels. So far, many investigations have been carried out focusing on process technology, microstructure optimization, and mechanical properties of the wheels 6–8 . However, there are relatively few studies on low‐cycle fatigue (LCF) behaviors, 9,10 except for several studies on crack propagation in the wheels 11,12 .…”

Section: Introductionmentioning

confidence: 99%

Low‐cycle fatigue characteristics and fracture behavior of the die‐forged 2014 aircraft wheel

Shen

Yang

Deng

et al. 2022

Fatigue Fract Eng Mat Struct

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In order to provide a sufficient theoretical basis for the fatigue‐resistant design of the aircraft wheels, strain‐controlled low‐cycle fatigue (LCF) tests were carried out on specimens machined in the extrusion direction (ED) and transverse direction (TD) of die‐forged 2014 aluminum alloy wheels. Although the TD specimens have lower tensile strength and yield strength, the fatigue test results show that the TD specimens have superior fatigue life compared with the ED specimens at total strain amplitudes of 0.5–0.8%. This is predominantly caused by the coarse Al12(MnSi)2(FeCu) intermetallic particles close to the surface layer, which results in a relatively short crack initiation stage for the ED specimens. In contrast, TD specimens with finer and more uniform recrystallized grains exhibit more excellent resistance to fatigue crack initiation (FCI) and propagation (FCP). Moreover, the fatigue life of alloys could be accurately predicted via a Manson–Coffin–Basquin (MCB) model based on total strain.

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Compute-Aided Design of Low Pressure Die-Casting Process of A356 Aluminum Wheels

Huang

Shieh

2017

AMM

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The lightweight design of aluminum automobile wheel can easily bring about all kinds of defects during die-casting, which often causes wheel frame deformation and creep damages in the future use and in turn affects traffic safety. To understand the evolution of mold flow, temperature field, and solidification, the low pressure die-casting processes of A356 aluminum wheel were simulated by Anycasting software package. Various casting parameters combined with the designs of flow channel and overflows were adopted to reduce the defects occurred in wheel products. In addition, we adopted the retained melt modulus (RMM) to predict the position of defects to be formed as well as their distribution so as to eliminate the shrinkage voids and porosity defects during die-casting. The research findings showed that the setting up of overflow tank could effectively prevent the formation of shrinkage void and porosity of die-castings and significantly promote the quality and productivity of die-casting wheel products.

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Study on the Technology and Defects in Low-Pressure Semi-Solid Die Casting of Aluminum Alloy Wheel Hub

Cited by 3 publications

References 8 publications

Effect of Heat Treatment on the Resistivity and Mechanical Property of Low-Pressure Semi-Solid Die Cast Aluminum Alloy Wheel

Effect of Heat Treatment on the Resistivity and Mechanical Property of Low-Pressure Semi-Solid Die Cast Aluminum Alloy Wheel

Low‐cycle fatigue characteristics and fracture behavior of the die‐forged 2014 aircraft wheel

Compute-Aided Design of Low Pressure Die-Casting Process of A356 Aluminum Wheels

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