Tribology of machine hammer peened tool surfaces for deep drawing / Daniel Harald Trauth.

Format:

Book

Author/Creator:

Trauth, Daniel Harald, author.

Series:

Technologie der Fertigungsverfahren

Ergebnisse aus der Produktionstechnik

Language:

German

Subjects (All):

Metal-working machinery.

Physical Description:

1 online resource (236 p.)

Edition:

1. Auflage.

Place of Publication:

Aachen, [Germany] : Apprimus Verlag, 2016.

Summary:

Zwecks Reduktion von Reibung und Verschleiß beim Tiefziehen von Leichtbauwerkstoffen wurden die Oberflächen gehärteter Ziehwerkzeuge durch maschinelles Oberflächenhämmern bearbeitet. Gegenstand der Dissertation ist die Erforschung der Wechselwirkungen zwischen den Parametern des Oberflächenhämmerns und den resultierenden Werkzeugoberflächen sowie die Wirkungsweise von gehämmerten Werkzeugoberflächen auf Reibung, Verschleiß und Schmierung.

Contents:

Preamble and Acknowledgement; Table of contents; 1 Introduction; 2 State of the art in deep drawing tribology; 2.1 Deep drawing basics; 2.1.1 Process principle of deep drawing; 2.1.2 Tribology of sliding bodies; 2.1.3 Intermediate conclusion; 2.2 Surface structures in elastic and elasto-plastic contacts; 2.2.1 Mechanisms of surface structures; 2.2.2 Manufacturing processes for the generation of surface structures; 2.2.3 Intermediate conclusion; 2.3 Machine hammer peening; 2.4 Ecological and scientific problem statement; 3 Objective and research methodology

4 Analysis of process and contact mechanics4.1 Determination and modeling of process forces during MHP; 4.1.1 Experimental set-up and effects of the process parameters on impact force; 4.1.2 Numerical modeling of impact tests; 4.2 Determination and modeling of the surface integrity of smoothsurfaces; 4.2.1 Experimental set-up for surface smoothing; 4.2.2 Numerical modeling of surface smoothing; 4.2.3 Effects of process parameters on surface integrity for surface smoothing; 4.3 Description of the surface integrity of structured surfaces; 4.3.1 Definition of patterns for surface structuring

4.3.2 Numerical modeling of surface structuring4.3.3 Effects of structuring process parameters on surface integrity; 4.4 Conclusion and unresolved challenges; 5 Friction characteristics of machine hammer peenedsurface structures; 5.1 Evaluation of friction characteristics of selected surface structuresusing strip drawing test; 5.1.1 Experimental set-up for manufacturing structured strip drawing tools; 5.1.2 Experimental set-up for strip drawing; 5.1.3 Results of the friction analysis; 5.2 Modeling of the hydrostatic contact

5.2.1 Set-up and verification of the FE-based fluid-structure interaction model5.2.2 Analysis of tribological target values; 5.2.3 Modeling of the sliding contact; 5.3 Modeling of the hydrodynamic contact; 5.3.1 Analysis of hydrodynamics longitudinally to the sliding direction; 5.3.2 Analysis of hydrodynamics transversal to the sliding direction; 5.4 Conclusion and unresolved challenges; 6 Wear characteristics of hammer peened surfaces; 6.1 Evaluation of wear characteristics by means of strip drawing test; 6.1.1 Experimental set-up and execution; 6.1.2 Results of the wear analysis

6.2 Investigation of coated surface structures6.2.1 Experimental coating characterization; 6.2.2 Friction and wear analysis using coated surface structures; 6.3 Modeling of surface temperature and residual stresses for slidingcontact; 6.4 Conclusion and unresolved challenges; 7 Physicochemical analysis of the wetting behavior; 7.1 Methodology and theoretical background; 7.2 Determination of the surface tension of selected lubricants; 7.2.1 Experimental set-up for pendant drop method; 7.2.2 Results for lubricant surface tension

7.3 Determination of the surface free energy of hammer peenedstructures

Notes:

Description based upon print version of record.

Includes bibliographical references.

Description based on online resource; title from PDF title page (ebrary, viewed September 6, 2016).

ISBN:

9783863594527

3863594525

OCLC:

957436559