Effect of processing parameters on the microstructure and hardness of laser transformation hardened tool steel

2004 ◽  
Author(s):  
Henrikki Pantsar ◽  
Veli Kujanpää
Keyword(s):  
Tool Steel ◽  
Processing Parameters ◽  
Hardened Tool Steel

NAK 80

Alloy Digest ◽  
1998 ◽  
Vol 47 (4) ◽  
Keyword(s):  
Fracture Toughness ◽  
Physical Properties ◽  
Surface Treatment ◽  
Tensile Properties ◽  
Tool Steel ◽  
Hardened Tool Steel

Abstract NAK 80 is a precipitation-hardened tool steel for molds with a similar through hardness. The alloy is used when exceptional polishing is required. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as fracture toughness. It also includes information on joining and surface treatment. Filing Code: SA-495. Producer or source: International Mold Steels Inc.

scholarly journals Characteristics of Cr-B Coatings Produced on Vanadis® 6 Tool Steel Using Laser Processing

Materials ◽  
2021 ◽  
Vol 14 (10) ◽  
pp. 2621
Author(s):  
Aneta Bartkowska
Keyword(s):  
Corrosion Resistance ◽  
Tool Steel ◽  
Laser Processing ◽  
Chemical Elements ◽  
Steel Substrate ◽  
Processing Parameters ◽  
Beam Power ◽  
Laser Beam Power ◽  
High Microhardness ◽  
The Impact

The paper presents the results of a study of the microstructure, chemical composition, microhardness and corrosion resistance of Cr-B coatings produced on Vanadis 6 tool steel. In this study, chromium and boron were added to the steel surface using a laser alloying process. The main purpose of the study was to determine the impact of those chemical elements on surface properties. Chromium and boron as well as their mixtures were prepared in various proportions and then were applied on steel substrate in the form of precoat of 100 µm thickness. Depending on the type of precoat used and laser processing parameters, changes in microstructure and properties were observed. Coatings produced using precoat containing chromium and boron mixture were characterized by high microhardness (900 HV0.05–1300 HV0.005) while maintaining good corrosion resistance. It was also found that too low laser beam power contributed to the formation of cracks and porosity.

Effect of Heat Treatment on the Structure, Wear and Corrosion of AISI L6 Tool Steel

2021 ◽  
Vol 406 ◽  
pp. 448-456
Author(s):  
Oualid Ghelloudj ◽  
Amel Gharbi ◽  
Djamel Zelmati ◽  
Khedidja Bouhamla ◽  
Chems Eddine Ramoul ◽  
...  
Keyword(s):  
Tool Steel ◽  
Tribological Behavior ◽  
Wear Testing ◽  
Wear And Corrosion ◽  
Hardening Treatment ◽  
Pin On Disc ◽  
The Coefficient Of Friction ◽  
Hardened Tool Steel ◽  
Hardness Increase ◽  
Steel Hardening

This work is a contribution in analyzing structure, tribological behavior and corrosion of AISI L6 hardened tool steel. Structural characterization and tribological behavior of steel were investigated using Optical Microscopy (OM), Scanning electron microscopy (SEM), wear testing by friction on a pin-on-disc Tribometer and corrosion by potentiodynamic polarization. Comparing to the as-received steel, hardening has generated a fine martensitic microstructure causing a 1.5 times hardness increase. Hardening has contributed to improvement of wear resistance as the coefficient of friction has decreased from 0.86 to 0.67μ. An increase in corrosion resistance was observed after hardening treatment.

An Investigation of Surface Roughness Obtained in Hard Milling of AISI W1

2015 ◽  
Vol 809-810 ◽  
pp. 87-92
Author(s):  
Irina Beşliu ◽  
Laurenţiu Slătineanu ◽  
Dumitru Amarandei
Keyword(s):  
Surface Roughness ◽  
Tool Steel ◽  
High Speed ◽  
Manufacturing Industry ◽  
Cutting Parameters ◽  
Face Milling ◽  
Hard Milling ◽  
Taguchi Design Of Experiments ◽  
Hardened Tool Steel ◽  
Cutting Processes

Hard milling is considered to be a precise and efficient machining method for the die and mold manufacturing industry. The main criterion for evaluating the cutting processes of the parts designed for these applications is the quality of the machined surfaces. For this reason, the analysis of the factors that influence the surface roughness obtained in this processes is important for helping the process become more productive and competitive. The present paper presents some results and an empirical model for surface roughness when high speeds face milling of AISI W1 tool steel. The influence of cutting parameters and material hardness is investigated by using Taguchi design of experiments. The results obtained show that high speed face milling of hardened tool steel AISI W1 can be carried out in economical conditions(on plant milling machines) and can lead to satisfactory surface quality (Ra =0.2-0.36 μm).

Optimisation of Plasma Nitrocarburising for Reducing Wear in Dry Sliding Contacts

2016 ◽  
Vol 721 ◽  
pp. 389-393 ◽  
Author(s):  
Igor Velkavrh ◽  
Florian Ausserer ◽  
Stefan Klien ◽  
Joel Voyer ◽  
Alexander Diem ◽  
...  
Keyword(s):  
Surface Topography ◽  
Layer Thickness ◽  
Tool Steel ◽  
Compound Layer ◽  
Processing Parameters ◽  
Dry Sliding ◽  
Tribological Behaviour ◽  
Micromechanical Properties ◽  
Wear And Friction ◽  
Steel Substrates

In this study, tool steel substrates were plasma-nitrocarburised at different processing parameters and afterwards tribologically tested under non-lubricated sliding conditions. It was observed that the micromechanical properties of the compound layer (thickness, hardness, roughness, surface topography) strongly affect the tribological behaviour of the nitrocarburised surface and can be tailored through the adjustment of the nitrocarburising parameters so that very favourable wear and friction behaviours can be achieved.

scholarly journals Micro-scale impact resistance of coatings on hardened tool steel and cemented carbide

2021 ◽  
Vol 284 ◽  
pp. 129009
Author(s):  
B.D. Beake ◽  
L. Isern ◽  
J.L. Endrino ◽  
T.W. Liskiewicz ◽  
X. Shi
Keyword(s):  
Tool Steel ◽  
Impact Resistance ◽  
Cemented Carbide ◽  
Micro Scale ◽  
Hardened Tool Steel
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