Thixoforming: Semi–solid Metal Processing

Recent research has investigated the unique flow behavior in semisolid state exhibited by metals and alloys. This has led to semisolid metal forming, called thixoforming, which is highly relevant to the manufacture of complex near–net–shape components in the interest of increasingly sophisticated products. This has recently been demonstrated by the industrial scale production of aluminum components, and there are impressive laboratory examples for semisolid forming of iron and steels.
Offering a sound technological overview, while also including the fundamental aspects, this book provides the knowledge needed to master the highly challenging process characteristics for successful application in industrial production. It summarizes the first–hand experience gained from twelve years of collaborative research covering materials science, rheology, casting and forming, control and surface technology as well as the modeling of flow behavior, tool engineering and systems engineering, and thus treats all the vital aspects of this field.
For materials scientists, physicists, engineers, and those working in the metal processing industry.


Spis treści:
Semi–solid Forming of Aluminium and Steel –
Introduction and Overview
MATERIAL FUNDAMENTALS OF METAL FORMING IN THE SEMI–SOLID STATE
Metallurgical Aspects of SSM Processing
Material Aspects of Steel Thixoforming
Design of Al– and Al–Li Alloys for Thixoforming
Thermochemical Simulation of Phase Formation
MODELLING THE FLOW BEHAVIOUR OF SEMI–SOLID METAL ALLOYS
Modelling the Flow Behaviour of Semi–solid Metal Alloys
A Physical and Micromechanical Model for Semisolid Behavior
TOOL TECHNOLOGIES FOR FORMING OF SEMI–SOLID METALS
Tool Technologies for Forming of Semi–solid Metals
FORMING OF SEMI–SOLID METALS
Rheocasting of Aluminium Alloys and Thixocasting of Steels
Thixoforging and Rhe oforging of Steel and Aluminium Alloys
Thixoextrusion

Nota biograficzna:
Gerhard Hirt is Professor at the Institute of Metal Forming of RWTH Aachen University, Germany, since 2004 and currently serves as the speaker of the collaborative research centre SFB289 "Thixoforming". He studied mechanical engineering at the RWTH and received his Ph.D. in the field of direct strip casting at the Institute of Metal Forming in 1988. His research activities include work in the field of semi–solid metal forming from 1991 to 1999 during his position as general manager of EFU GmbH, a company offering equipment and R&D service in metal casting and forming. From 1999 until 2004 he was Professor for Materials Technology and Precision Forming of Saarland University in Saarbrücken.
Reiner Kopp is Professor Emeritus at the Institute of Metal Forming at the RWTH Aachen University, where he served as Full Professor, Vice President of RWTH and as Dean of the Faculty of Mining, Metallurgy and Geoscience. He took up his academic activities after an industrial career as Head of Production Technology R&D Department at Dornier GmbH. His further activities include several chairmanships and advisory board memberships, e.g., at ThyssenKrupp Stainless. Likewise notable is his involvement in the Board of German Academy of Technical Sciences, Acatech, and vice chairmanship of the international organisation Euro–CASE. He is also a member of the Academy of Sciences of North Rhine Westphalia and the Academy Cirp.

Okładka tylna:
Recent research has investigated the unique flow behavior in semisolid state exhibited by metals and alloys. This has led to semisolid metal forming, called thixoforming, which is highly relevant to the manufacture of complex near–net–shape components in the interest of increasingly sophisticated products. This has recently been demonstrated by the industrial scale production of aluminum components, and there are impressive laboratory examples for semisolid forming of iron and steels.
Offering a sound technological overview, while also including the fundamental aspects, this book provides the knowledge needed to master the highly challenging process characteristics for successful application in industrial production. It summarizes the first–hand experience gained from twelve years of collaborative research covering materials science, rheology, casting and forming, control and surface technology as well as the modeling of flow behavior, tool engineering and systems engineering, and thus treats all the vital aspects of this field.
For materials scientists, physicists, engineers, and those working in the metal processing industry.