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Microstructuring of Thermo-Mechanically Highly Stressed Surfaces: Final Report of the DFG Research Group 576 2015 ed. [Kõva köide]

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  • Formaat: Hardback, 175 pages, kõrgus x laius: 235x155 mm, kaal: 4144 g, 113 Illustrations, color; 57 Illustrations, black and white; XIV, 175 p. 170 illus., 113 illus. in color., 1 Hardback
  • Sari: Lecture Notes in Production Engineering
  • Ilmumisaeg: 08-Oct-2014
  • Kirjastus: Springer International Publishing AG
  • ISBN-10: 3319096915
  • ISBN-13: 9783319096919
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Microstructuring of Thermo-Mechanically Highly Stressed Surfaces: Final Report of the DFG Research Group 576 2015 ed.Suurem pilt
  • Formaat: Hardback, 175 pages, kõrgus x laius: 235x155 mm, kaal: 4144 g, 113 Illustrations, color; 57 Illustrations, black and white; XIV, 175 p. 170 illus., 113 illus. in color., 1 Hardback
  • Sari: Lecture Notes in Production Engineering
  • Ilmumisaeg: 08-Oct-2014
  • Kirjastus: Springer International Publishing AG
  • ISBN-10: 3319096915
  • ISBN-13: 9783319096919
Teised raamatud teemal:
Püsilink: https://www.kriso.ee/db/9783319096919.html
Märksõnad:
The fuel consumption of a modern combustion engine is one of the most important purchase criteria in contemporary society. Increasing oil prices and exhaust emissions taxes force the automotive industry to continuously improve the vehicle engines. The fuel consumption is closely related to the frictional losses of an engine. New material pairings or constructive modifications of the piston group can reduce such losses. Another innovative concept to lower the frictional forces is the micro-structuring of thermo-mechanically highly stressed surfaces. Within an interdisciplinary research group sponsored by the German Research Foundation, scientists at the Leibniz Universität Hannover and Universität Kassel have been working together to investigate this research topic. This final report presents their findings and offers scope for further discussion.

Introduction.- Project overview.- Methods and models for the design of microstructures.- Micro structuring by means of cutting processes.- Micro structured thermal sprayed surfaces.- Surface characterization based on optical metrology.- Tribological mechanisms of micro structures.- Test of cylinder liner under fired engine conditions.

Prof. Dr.-Ing. Berend Denkena promovierte 1992 am Institut für Fertigungstechnik und spanende Werkzeugmaschinen (IFW) der Universität Hannover. Ab 1996 führte er bei Gildemeister Drehmaschinen den Bereich Entwicklung und Konstruktion. 2001 wurde er als Leiter des Instituts für Fertigungstechnik und Werkzeugmaschinen der Universität Hannover als Nachfolger von Herrn Prof. Tönshoff berufen.

Prof. Bach ist Leiter des Instituts für Werkstoffkunde der Universität Hannover und Direktor des Forschungszentrum für Oberflächentechnologie und Innovationsservice (FORTIS) in Witten. Er ist einer der renommiertesten deutschen Wissenschaftler auf dem Geneit der Oberflächentechnik.
Formula symbols and abbreviations ix
1 Introduction
1(1)
2 Project overview
2(7)
2.1 Consortium
2(2)
2.2 Starting situation and need for action
4(3)
2.3 Summary of main results
7(2)
3 Methods and models for the design of microstructures
9(19)
G. Knoll
A. Rienacker
S. Brandt
H. Fast
3.1 Objective and approach
9(1)
3.2 Comparison between Computational Fluid Dynamics and the Reynolds equation
9(2)
3.3 Investigation of dimple geometry and arrangement
11(7)
3.4 Simulation model for piston ring friction coefficient test rig
18(2)
3.5 Design and validation of a test engine simulation model
20(7)
3.6 Conclusion
27(1)
4 Microstructuring by means of cutting processes
28(30)
B. Denkena
J. Kastner
T. Gottsching
4.1 Objective and approach
28(1)
4.2 Experimental set-up - fly-cutting tests
29(4)
4.3 High-quality cutting of micro-dimples
33(13)
4.4 Inner structuring of rotationally symmetrical components
46(10)
4.5 Conclusion
56(2)
5 Microstructured thermally sprayed surfaces
58(35)
Fr.-W. Bach
K. Mohwald
M. Erne
C. Hubsch
H. J. Maier
5.1 Objective
58(1)
5.2 Experimental
58(2)
5.3 Outer coating of rotationally symmetric components
60(14)
5.4 Inner coating of rotationally symmetric components
74(15)
5.5 Tribological testing of the inner coating of cylinder liners
89(2)
5.6 Conclusion
91(2)
6 Surface characterisation based on optical metrology
93(26)
E. Reithmeier
M. Kastner
M. Bretschneider
O. Abo-Namous
F. Engelke
6.1 Objective and approach
93(1)
6.2 Measurement techniques
94(3)
6.3 Measurement of machined micro-dimples
97(12)
6.4 Measurement of thermal sprayed surfaces
109(2)
6.5 Multi-measurement methods
111(5)
6.6 Conclusion
116(3)
7 Tribological mechanisms of microstructures
119(27)
7.1 Tribological mechanisms of machined micro-dimples under planar contact conditions
119(10)
B. Denkena
J. Kastner
T. Gottsching
7.2 Tribological mechanisms of microstructured thermally sprayed surfaces
129(12)
Fr.-W. Bach
K. Mohwald
M. Erne
C. Hubsch
H. J. Maier
7.3 Tribological mechanisms of microstructured surfaces under dragged conditions
141(5)
G. Knoll
A. Rienacker
S. Brandt
H. Fast
8 Test of cylinder liner under fired engine conditions
146(21)
F. Dinkelacker
H. Ulmer
8.1 Objective and approach
146(1)
8.2 Engine test bench and cylinder liners
146(3)
8.3 Methods to measure friction losses and oil emissions
149(1)
8.4 Measurement uncertainty
150(1)
8.5 Validation of the measuring method
151(3)
8.6 Results: frictional losses
154(8)
8.7 Results: oil emission
162(2)
8.8 Conclusion
164(3)
9 Own publications
167(3)
10 Quoted literature
170
This contributed volume presents the final research results of the DFG Research Group 576, which is a joint initiative of five different institutes of the Leibniz Universität Hannover and the Universität Kassel, Germany. The research of the DFG Research Group 576 focuses on improving the tribological behavior of thermomechanically highly stressed surfaces, particularly on cylinder liner for combustion engines. The target audience primarily comprises researchers and experts in the field but the book may also be beneficial for graduate students who want to specialize in the field.