Alloying Design and Process Strategy for High Performance 1800 MPa Press Hardening Steel

2018 ◽  
Author(s):  
J. Bian ◽  
H. Z. Lu ◽  
W. J. Wang ◽  
A. M. Guo
Keyword(s):  
High Performance ◽  
Press Hardening ◽  
Process Strategy ◽  
Press Hardening Steel

Development of High Performance Press Hardening Steel Through Microstructure Engineering

2017 ◽  
Author(s):  
Jian Bian ◽  
H. Z. Lu ◽  
W. J. Wang ◽  
A. M. Guo
Keyword(s):  
High Performance ◽  
Press Hardening ◽  
Press Hardening Steel

scholarly journals Potentials of Vitrified and Elastic Bonded Fine Grinding Worms in Continuous Generating Gear Grinding

2021 ◽  
Vol 5 (1) ◽  
pp. 4
Author(s):  
Maximilian Schrank ◽  
Jens Brimmers ◽  
Thomas Bergs
Keyword(s):  
High Performance ◽  
Manufacturing Processes ◽  
Fine Grinding ◽  
Gear Grinding ◽  
Profile Line ◽  
Grinding Tool ◽  
Process Behavior ◽  
Hard Finishing ◽  
Tooth Flank ◽  
Process Strategy

Continuous generating gear grinding with vitrified grinding worms is an established process for the hard finishing of gears for high-performance transmissions. Due to the increasing requirements for gears in terms of power density, the required surface roughness is continuously decreasing. In order to meet the required tooth flank roughness, common manufacturing processes are polish grinding with elastic bonded grinding tools and fine grinding with vitrified grinding tools. The process behavior and potential of the different bonds for producing super fine surfaces in generating gear grinding have not been sufficiently scientifically investigated yet. Therefore, the objective of this report is to evaluate these potentials. Part of the investigations are the generating gear grinding process with elastic bonded, as well as vitrified grinding worms with comparable grit sizes. The potential of the different tool specifications is empirically investigated independent of the grain size, focusing on the influence of the bond. One result of the investigations was that the tooth flank roughness could be reduced to nearly the same values with the polish and the fine grinding tool. Furthermore, a dependence of the roughness on the selected grinding parameters could not be determined. However, it was found out that the profile line after polish grinding is significantly dependent on the process strategy used.

Fräsen partikelverstärkter Titanmatrix-Verbundwerkstoffe*/Milling of particle-reinforced titanium metal matrix composites

2017 ◽  
Vol 107 (04) ◽  
pp. 301-305
Author(s):  
E. Prof. Uhlmann ◽  
F. Kaulfersch
Keyword(s):  
High Performance ◽  
High Wear Resistance ◽  
Tool Geometry ◽  
Matrix Composites ◽  
Titanium Matrix ◽  
Titanium Matrix Composites ◽  
Performance Improvements ◽  
Significant Performance ◽  
High Temperature Components ◽  
Process Strategy

Partikelverstärkte Titanmatrix-Verbundwerkstoffe erlauben erhebliche Leistungssteigerungen im Bereich hochtemperaturbeanspruchter Struktur- und Funktionsbauteile. Die durch die Partikelverstärkung gesteigerte Verschleißbeständigkeit, Festigkeit und Härte bedeuten eine große Herausforderung an die spanende Bearbeitung derartiger Hochleistungswerkstoffe. Mittels Zerspanuntersuchungen beim Fräsen konnten unter Variation der Werkzeuggeometrie, der Schneidstoffe und der Prozessstrategie Parameterbeiche identifiziert werden, mit denen die prozesssichere Zerspanung partikelverstärkter Titanmatrix-Verbundwerkstoffe möglich ist.   Particle-reinforced titanium matrix composites ensure significant performance improvements of structural and functional high-temperature components. However, the high wear resistance, toughness and hardness due to particle reinforcement is a major challenge in machining these high performance materials. By conducting milling experiments with a variation of tool geometry, cutting material and process strategy, process parameters could be identified that enable efficient machining of particle-reinforced titanium matrix composites.

Hot Stamped Aluminium for Crash-Resistant Automobile Safety Cage Applications

2021 ◽  
Vol 1016 ◽  
pp. 445-452
Author(s):  
Jaume Pujante ◽  
David Frómeta ◽  
Eduard Garcia-Llamas ◽  
Maria Gimenez ◽  
Daniel Casellas
Keyword(s):  
Cycle Time ◽  
High Performance ◽  
Hot Stamping ◽  
Sheet Steel ◽  
Alloy Sheet ◽  
Process Window ◽  
Martensitic Steels ◽  
Press Hardening ◽  
Automobile Safety ◽  
Shape Complexity

Hot stamping, also known as press hardening in the context of sheet steel, has steadily gained relevance in the automotive industry, starting off as a specialist application and turning into a staple technique in the production of safety cage products in little more than a decade. However, despite the weight reduction offered by martensitic steels, further improvement could be obtained by substituting these components by high-performance aluminium. In this regard, the very same process of hot stamping could be employed to attain the required combination of shape complexity and mechanical properties at a reasonable cost for mass-market application, if the limitations imposed by cycle time and process window could be overcome. In this work, the feasibility of hot stamping of 6000-series aluminium alloy sheet is studied, first in dilatometry experiments and later in semi-industrial conditions in a pilot facility. A cycle time shortening strategy is employed, and compared to the conventional thermal cycle in terms of implementation and obtained results. In addition to basic characterization, aluminium thus processed is studied in terms of fracture toughness, in order to obtain data relevant to crashworthiness that can be readily compared with alternative materials.

Influence of vanadium on the hydrogen embrittlement of aluminized ultra-high strength press hardening steel

2018 ◽  
Vol 735 ◽  
pp. 448-455 ◽  
Author(s):  
Lawrence Cho ◽  
Eun Jung Seo ◽  
Dimas H. Sulistiyo ◽  
Kyoung Rae Jo ◽  
Seong Woo Kim ◽  
...  
Keyword(s):  
Hydrogen Embrittlement ◽  
High Strength ◽  
Press Hardening ◽  
Press Hardening Steel

Development of Press Hardening Steel with High Resistance to Hydrogen Embrittlement

2015 ◽  
pp. 571-576
Author(s):  
Jian Bian ◽  
Hardy Mohrbacher ◽  
Hongzhou Lu ◽  
Wenjun Wang
Keyword(s):  
Hydrogen Embrittlement ◽  
High Resistance ◽  
Press Hardening ◽  
Press Hardening Steel

Formability analysis of thin press hardening steel sheets under isothermal and non-isothermal conditions

2016 ◽  
Vol 10 (3) ◽  
pp. 405-419 ◽  
Author(s):  
G. Georgiadis ◽  
A. E. Tekkaya ◽  
P. Weigert ◽  
S. Horneber ◽  
P. Aliaga Kuhnle
Keyword(s):  
Press Hardening ◽  
Isothermal Conditions ◽  
Steel Sheets ◽  
Press Hardening Steel

Microstructure evolution of a 55wt.% Al–Zn coating on press hardening steel during rapid heating

2015 ◽  
Vol 281 ◽  
pp. 35-43 ◽  
Author(s):  
Chang Wook Lee ◽  
Won Seok Choi ◽  
Yeol Rae Cho ◽  
Bruno C. De Cooman
Keyword(s):  
Microstructure Evolution ◽  
Rapid Heating ◽  
Press Hardening ◽  
Press Hardening Steel
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