The induction heating process of semi-solid aluminium alloys for thixoforming and their microstructure evaluation

2000 ◽  
Vol 105 (1-2) ◽  
pp. 176-190 ◽  
Author(s):  
H.K Jung
Keyword(s):  
Induction Heating ◽  
Aluminium Alloys ◽  
Heating Process ◽  
Microstructure Evaluation ◽  
Semi Solid

scholarly journals Influence of Parameters during Induction Heating Cycle of 7075 Aluminium Alloys with RAP Process

2008 ◽  
Vol 141-143 ◽  
pp. 719-724 ◽  
Author(s):  
G. Vaneetveld ◽  
Ahmed Rassili ◽  
H.V. Atkinson
Keyword(s):  
Solid State ◽  
Aluminium Alloy ◽  
Heating Rate ◽  
Induction Heating ◽  
Aluminium Alloys ◽  
Heating Cycle ◽  
Fast Heating ◽  
Globular Microstructure ◽  
Protective Gas ◽  
Semi Solid

Thixoforging involves shaping alloys with a globular microstructure in the semi-solid state. To reach this kind of material, the Recrystallisation and Partial Melting (RAP) process can be used to obtain a globular microstructure from extruded material with liquid penetrating the recrystallised boundaries. Induction heating is used to apply the RAP process to slugs. One of the benefits of using this method of heating is the fast heating rate (20°C/s). This paper will help to improve heating parameters by showing their influence on 7075 aluminium alloy recrystallisation. These parameters are the heating rate; heating frequencies-power; presence or not of protective gas; position of the slug in the inductor; energy stored inside the slug; oxide layer on the slug side; chamfer of the slug upper corner.

Experimental and Simulation Study of Microstructure of the Aluminium Alloy 319s in Induction Reheating Process

2012 ◽  
Vol 192-193 ◽  
pp. 281-286 ◽  
Author(s):  
Nan Nan Song ◽  
Fan Zhang ◽  
You Feng He ◽  
Qiang Zhu
Keyword(s):  
Induction Heating ◽  
Process Parameters ◽  
Liquid Fraction ◽  
Quantitative Relationship ◽  
Heating Process ◽  
Time Interval ◽  
Short Time Interval ◽  
Compressor Wheel ◽  
Semi Solid ◽  
Reheating Process

Semi-solid processing of metallic alloys has been developing over the last 30 years. Millions of components are now manufactured by semi-solid processing. A semi-solid processing so called thixoforming requires reheating the feedstock to a semi-solid state in relatively short time interval with a uniform temperature distribution as well as an optimum liquid fraction. Microstructure, which makes significant impact on processing parameters and quality of the component, changes during the reheating process. The main objective of this study is to establish a quantitative relationship of the microstructure and the induction heating process parameters of the aluminum alloy 319s. This quantitative relationship is employed in the numerical simulation of calculating solid/liquid fraction changes during induction heating process. The simulation results are then successfully applied in aiding optimization of process parameters to make an automobile engine turbocharger compressor wheel, which has very complex geometry.

A numerical study of the effect of the number of turns of coil on the heat produced in the induction heating process in the 3d model

2018 ◽  
Vol 18 (3) ◽  
pp. 408-419
Author(s):  
A J shokri ◽  
M H Tavakoli ◽  
A Sabouri Dodaran ◽  
M S Akhondi Khezrabad ◽  
◽  
...  
Keyword(s):  
Induction Heating ◽  
3D Model ◽  
Numerical Study ◽  
Heating Process

A Comparative Study on the Microstructure Evaluation of Thixoforged A356 and A380 Aluminium Alloys

2017 ◽  
Vol 54 (3) ◽  
pp. 163-177
Author(s):  
K. A. Güler ◽  
R. Gecü ◽  
A. Kısasöz ◽  
A. Karaaslan
Keyword(s):  
Comparative Study ◽  
Aluminium Alloys ◽  
Microstructure Evaluation

scholarly journals The induction heating process modelling of the waveguide paths’ flanges

2021 ◽  
Vol 1047 (1) ◽  
pp. 012027
Author(s):  
A V Milov ◽  
V S Tynchenko ◽  
S O Kurashkin ◽  
V E Petrenko ◽  
D V Rogova ◽  
...  
Keyword(s):  
Induction Heating ◽  
Process Modelling ◽  
Heating Process
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