Combined effects of mechanical vibration and wall thickness on microstructure and mechanical properties of A356 aluminum alloy produced by expendable pattern shell casting

Jiang, Wenming; Zhao, Fan; Xu, Cheng; Wang, Benjing; Wu, Hao

doi:10.1016/j.msea.2014.09.102

Cited by 62 publications

(19 citation statements)

References 36 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The vibration frequency was chosen as 100 Hz based on Refs. [9][10]. In addition, the sample without vibration was also fabricated at a pouring temperature of 730 ºC for a comparison.…”

Section: Methodsmentioning

confidence: 99%

“…As is known, the mechanical vibration is a simple, economic, and effective method to refine microstructure and improve mechanical properties [5][6][7][8] . Some researchers have systematically studied the effect of mechanical vibration on microstructure and mechanical properties of aluminum alloy by the EPSC process [9,10] . However, there are few investigations on the effect of the vibration amplitude and pouring temperature on the microstructure and mechanical properties of AZ91D magnesium alloy.…”

mentioning

confidence: 99%

See 1 more Smart Citation

Microstructure and mechanical properties of AZ91D magnesium alloy by expendable pattern shell casting with different mechanical vibration amplitudes and pouring temperatures

Fan

2021

China Foundry

View full text Add to dashboard Cite

There is an increasing demand for complicated magnesium alloy precision castings in the aerospace and automotive industries due to their many advantages, such as low density, high specific strength, excellent castability and electromagnetic shielding capacity [1-3]. Expendable pattern shell casting (EPSC) technology that combines the foam pattern preparation of lost foam casting (LFC), the thin shell precision fabrication of investment casting, and the negative pressure pouring technology is considered a novel precision casting process, which is suitable for manufacturing complicated magnesium and aluminum alloys precision castings with a high quality [4]. The EPSC process has a number

show abstract

“…The vibration frequency was chosen as 100 Hz based on Refs. [9][10]. In addition, the sample without vibration was also fabricated at a pouring temperature of 730 ºC for a comparison.…”

Section: Methodsmentioning

confidence: 99%

mentioning

confidence: 99%

Microstructure and mechanical properties of AZ91D magnesium alloy by expendable pattern shell casting with different mechanical vibration amplitudes and pouring temperatures

Fan

2021

China Foundry

View full text Add to dashboard Cite

show abstract

“…By using a Fish bone diagram (see details on Figure 2), we highlight the main process parameters associated to the IC which can affect the quality features of the IC components. The number of IC slurry layer (N SL ) has been judicially selected as an input parameter due to its significance highlighted in the literature [38,39,40]. The following are the procedural steps followed to obtain AMCs, which refer to the original Taguchi L18 orthogonal array (Table A1), as given in the Appendix A:The alternative feedstock filaments (F P ) have been prepared using PA, Al 2 O 3 , and Al in different %wt.…”

Section: Methodsmentioning

confidence: 99%

Dimensionless Analysis for Investigating the Quality Characteristics of Aluminium Matrix Composites Prepared through Fused Deposition Modelling Assisted Investment Casting

et al. 2019

View full text Add to dashboard Cite

The aluminium matrix composites (AMCs) have become a tough competitor for various categories of metallic alloys, especially ferrous materials, owing to their tremendous servicing in the diversified application. In this work, additional efforts have been made to formulate a mathematical model, by using dimensionless analysis, able to predict the mechanical characteristics of the AMCs that have already been optimized and characterized by the authors. Here, the experimental and statistical data obtained from the Taguchi L18 orthogonal array and analysis of variance (ANOVA) have been used. They permit collection of the output responses and allow the identification of significant process parameters, respectively, which thereafter were used to design the mathematical model. Second order polynomial equations have been obtained from the specific output response and the relevant input parameter were incorporated with the highest level of contribution. The obtained quadratic equations indicate the regression values (R2) equal to unity, hence, proving the performances of the fit. The results demonstrate that the developed mathematical models present very high accuracy for predicting the output responses.

show abstract

“…The IC process consists of liquid metal pouring into a ceramic cavity designed to reproduce the desired part through wax patterns [20][21][22]. Jiang et al have proposed another casting process for the ceramic cavity, which is the expendable pattern shell casting process with vacuum and low pressure (EPSC-VL) to produce thin-walled aluminum, magnesium alloy, and A356 aluminum alloy castings [23][24][25][26]. Thanks to the gas pressure and vacuum pressure during casting, both the filling ability and feeding capacity of the molten metal are improved with this kind of process.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of the effects of the metal foams geometrical features on thermal and fluid-dynamical behavior in forced convection

Almonti

Baiocco

Mingione

et al. 2020

Int J Adv Manuf Technol

View full text Add to dashboard Cite

Metal foams are a material, featuring interesting characteristics for the aeronautical and automotive fields because of their low specific weight, high thermal properties, and mechanical performances. In particular, this paper deals with thermal and fluid dynamic study of 24 open-cell aluminum EN43500 (AlSi10MnMg) metal foams produced by indirect additive manufacturing (I-AM), combining 3D printing and metal casting to obtain a controllable morphology. A study of foam behavior function of the morphological features (pores per inch (PPI), branch thickness (r), and edges morphology (smooth-regular)) was performed. The samples produced were heated by radiation and tested in an open wind circuit gallery to measure the fluid dynamic properties such as pressure drop (Δp), inertial coefficient (f), and permeability (k), in an air forced convection flow. The thermal characterization was performed evaluating both the theoretical (kth) and effective (keff) thermal conductivity of the foams. Also, the global heat transfer coefficient (HTCglobal) was evaluated with different airflow rates. Analysis of variance (ANoVA) was performed to figure out which geometrical parameters are significant during both thermal and fluid dynamic processes. The results obtained show how the controllable foam morphology can affect the involved parameters, leading to an ad hoc design for industrial applications that require high thermo-fluid-dynamical performances.

show abstract

Combined effects of mechanical vibration and wall thickness on microstructure and mechanical properties of A356 aluminum alloy produced by expendable pattern shell casting

Cited by 62 publications

References 36 publications

Microstructure and mechanical properties of AZ91D magnesium alloy by expendable pattern shell casting with different mechanical vibration amplitudes and pouring temperatures

Microstructure and mechanical properties of AZ91D magnesium alloy by expendable pattern shell casting with different mechanical vibration amplitudes and pouring temperatures

Dimensionless Analysis for Investigating the Quality Characteristics of Aluminium Matrix Composites Prepared through Fused Deposition Modelling Assisted Investment Casting

Evaluation of the effects of the metal foams geometrical features on thermal and fluid-dynamical behavior in forced convection

Contact Info

Product

Resources

About