Paper Title:
Influence of Parameters during Induction Heating Cycle of 7075 Aluminium Alloys with RAP Process

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.

Solid State Phenomena (Volumes 141-143)
Edited by
G. Hirt, A. Rassili, A. Bührig-Polaczek
G. Vaneetveld, A. Rassili, H.V. Atkinson, "Influence of Parameters during Induction Heating Cycle of 7075 Aluminium Alloys with RAP Process", Solid State Phenomena, Vols. 141-143, pp. 719-724, Jul. 2008
Online since
July 2008
US$ 28,-
Authors: Daniela Herman, J. Plichta, K. Nadolny
Abstract:A new type of ceramic abrasive tools prepared of aluminium oxide (alumina), designed to realise the one-pass process of inside diameter...
Authors: Yong Guo Wang, Xiao Guang Chen, Gang Liu
Abstract:PCD cutting tools have been widely used in manufacturing main automobile parts such as Al-alloy cylinder head and block. Being used PCD...
Authors: Pham Son Minh, Thanh Trung Do
Chapter 6: Automation, Robotics and Control
Abstract:In this study, a hot gas is used for heating the cavity surface of a mold. Different stamp thickness were designed and insert into the cavity...
Authors: Panyawat Wangyao, Sureerat Polsilapa, Anchalee Srimek, Aimamorn Promboopha
Chapter 1: Microstructure Analyses and Materials Research
Abstract:In this research, 5 superalloys Udimet-500 samples were reheat-treated under simulation of 2 working conditions. First, they were heated at...