Investigation Of The Self Organising Behaviour Of Laser Implanted Tool Surfaces
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Investigation Of The Self Organising Behaviour Of Laser Implanted Tool Surfaces
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Author : Hilgenberg, Kai
language : en
Publisher: kassel university press GmbH
Release Date : 2014-01-01
Investigation Of The Self Organising Behaviour Of Laser Implanted Tool Surfaces written by Hilgenberg, Kai and has been published by kassel university press GmbH this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-01-01 with categories.
The alignment of defined surface structures on sheet metal surfaces for metal forming operations by skin-pass rolling is a common approach for improving the formability, the durability of the used forming tools, and the optical appearance of the final product. Especially automotive applications impose high requirements on the properties and the repeatability of surface structures. Different roll structuring techniques have therefore been developed during the last decades and found entrance into industrial application. However, the lifetime of the structured rolls is still not satisfying, which necessitates expensive and time consuming chrome plating and roll replacement. Furthermore, a study of the state of the art reveals that the tribological potential of defined surface structures for enabling micro-lubrication mechanisms in subsequent forming steps is apparently not realised completely by these techniques.
In experimental studies a new structuring method is investigated for optimising the tribological behaviour in metal forming operations. This new approach utilises the system immanent wear forces for the creation and maintenance of a surface topology. It bases on the initial creation of a material properties gradient on the surface of tool steels, which is gradually transformed into a surface topology under tribological load due to locally different wear rates. For the creation of the necessary material properties gradient, a discontinuous laser dispersing (laser implantation) of ceramic particles is further developed.
The wear behaviour and its influence parameters are identified in sliding and rolling wear experiments. It is shown in a pin-on-disc test that after a certain time a steady state exists where the created surface topology does not change. This state is not reached in the rolling test due to the outstanding wear performance of the laser created structures, the comparably low relative sliding velocity and the distribution of the wear effect on the roll circumference. Afterwards, a mathematic model basing on contact-mechanical considerations is introduced, which allows a prediction of the wear behaviour and the steady state height. It shows a good agreement with the experimental results. Finally, the potential of the laser implantation texturing for being used in industrial applications is discussed.
Metals Abstracts
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Author :
language : en
Publisher:
Release Date : 1998
Metals Abstracts written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1998 with Metallurgy categories.
Physics Briefs
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Author :
language : en
Publisher:
Release Date : 1993
Physics Briefs written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1993 with Physics categories.
Scientific And Technical Aerospace Reports
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Author :
language : en
Publisher:
Release Date : 1995
Scientific And Technical Aerospace Reports written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1995 with Aeronautics categories.
Recent Awards In Engineering
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Author :
language : en
Publisher:
Release Date : 1983
Recent Awards In Engineering written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1983 with Engineering categories.
International Aerospace Abstracts
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Author :
language : en
Publisher:
Release Date : 1999
International Aerospace Abstracts written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1999 with Aeronautics categories.
Popular Science
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Author :
language : en
Publisher:
Release Date : 2005-09
Popular Science written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005-09 with categories.
Popular Science gives our readers the information and tools to improve their technology and their world. The core belief that Popular Science and our readers share: The future is going to be better, and science and technology are the driving forces that will help make it better.
Metals Abstracts Index
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Author :
language : en
Publisher:
Release Date : 1996
Metals Abstracts Index written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1996 with Metallurgy categories.
Popular Science
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Author :
language : en
Publisher:
Release Date : 2004-12
Popular Science written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004-12 with categories.
Popular Science gives our readers the information and tools to improve their technology and their world. The core belief that Popular Science and our readers share: The future is going to be better, and science and technology are the driving forces that will help make it better.
Science Abstracts
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Author :
language : en
Publisher:
Release Date : 1995
Science Abstracts written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1995 with Electrical engineering categories.