scholarly journals Technology Innovation for the Manual Laser Cladding of High-Alloy Tool Steels

Metals ◽  
2021 ◽  
Vol 11 (11) ◽  
pp. 1820
Author(s):  
Jonas Kimme ◽  
Josephine Zeisig ◽  
Alexander Fröhlich ◽  
Verena Kräusel
Keyword(s):  
Laser Cladding ◽  
High Performance ◽  
Fe Simulation ◽  
Welding Process ◽  
Tool Steels ◽  
High Alloy ◽  
Design And Optimization ◽  
Material Deposition ◽  
Laser Cladding Process ◽  
Alloy Tool

This paper presents the development and successful application of an inductive preheating system running simultaneously with the manual laser cladding process in order to enable the repair of high-alloy tool steels having a highly limited weldability. In this study, the design and optimization of a suitable inductor as well as the analysis of the welding process were carried out by means of FE-simulation in order to generate material deposition without imperfections. Parameter variation studies were conducted while parallel modifying the generator power resulting in different preheating temperatures. These examinations showed that by using appropriate process parameters and an inductive preheating temperature of 200 ∘C, crack- and pore-free deposition layers could be produced on the commercial high-alloyed PM steel Elmax. This result can be explained by FE-simulation demonstrating that the cooling rate was halved in the weld and in the heat-affected zone. In conclusion, this study shows the high potential of the developed technical innovation for the manual laser cladding of high-performance tools.

Process technological aspects of the production and properties of in situ combined plasma-nitrided and PVD hard- coated high alloy tool steels

1995 ◽  
Vol 74-75 ◽  
pp. 339-344 ◽  
Author(s):  
K. Höck ◽  
G. Leonhardt ◽  
B. Bücken ◽  
H.-J. Spies ◽  
B. Larisch
Keyword(s):  
Tool Steels ◽  
High Alloy ◽  
Alloy Tool

Microstructure and abrasive wear behavior of a novel FeCrMoVC laser cladding alloy for high-performance tool steels

Wear ◽  
2017 ◽  
Vol 382-383 ◽  
pp. 107-112 ◽  
Author(s):  
J. Zeisig ◽  
N. Schädlich ◽  
L. Giebeler ◽  
J. Sander ◽  
J. Eckert ◽  
...  
Keyword(s):  
Abrasive Wear ◽  
Laser Cladding ◽  
High Performance ◽  
Wear Behavior ◽  
Tool Steels ◽  
Abrasive Wear Behavior

Static Recrystallization of Tool Steels

2007 ◽  
Vol 539-543 ◽  
pp. 4458-4463 ◽  
Author(s):  
C.A.C. Imbert ◽  
H.J. McQueen
Keyword(s):  
Carbon Steel ◽  
Single Phase ◽  
Static Recrystallization ◽  
Austenitic Stainless Steels ◽  
Hot Working ◽  
Microalloyed Steels ◽  
Tool Steels ◽  
High Alloy ◽  
Alloy Tool ◽  
Static Softening

Double-twist torsion tests were used to determine static softening in the hot working range of three tool steels – W1, a carbon steel (1.03% C - 0.8% other elements), A2 and D2, a medium and a high alloy steel, containing 8.45% and 14.82% alloying elements. The carbon steel, that was single-phase austenite in the hot-working range, experienced rapid static recrystallization due to increased diffusion rate caused by C in hot austenite, very little alloying solute and no carbides. Carbides in alloy tool steels, which exist throughout the hot-working range, have a retarding effect on the progress of recrystallization but are responsible for enhancing initiation due to formation of nuclei at the strain concentration near the particle/matrix interface. Static recrystallization (SRX) of the alloy tool steels was compared with austenitic stainless steels, with similar strengths but much greater alloying content, and with microalloyed steels, as well as with the dynamic recrystallization kinetics.

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