Influence of Surface Texturing Sequence on Fatigue Life and Tribological Properties of Coated Tool Steel

2018 ◽  
Vol 767 ◽  
pp. 85-92 ◽  
Author(s):  
Marko Sedlaček ◽  
Bojan Podgornik ◽  
Damir Česnik
Keyword(s):  
Fatigue Life ◽  
Tool Steel ◽  
Tribological Properties ◽  
Surface Texturing ◽  
Laser Surface ◽  
Laser Surface Texturing ◽  
Tialn Coating ◽  
Coating Deposition ◽  
Coated Tool ◽  
Before And After

The aim of this study was to investigate the influence of laser surface texturing on fatigue life and tribological properties. Textures were introduced before and after hard TiAlN coating deposition in order to investigate the sequence of surface texturing process. It was found that the sequence of surface texturing has an effect on tribological and fatigue life behaviour. If laser texturing is done after coating deposition, friction is lower because of the better wettability of steel in comparison with coating, but suffers in fatigue life properties.

scholarly journals Influence of Laser Surface Texturing Sequence on Fatigue Properties of Coated Cold Work Tool Steel

Metals ◽  
2020 ◽  
Vol 10 (12) ◽  
pp. 1636
Author(s):  
Marko Sedlaček ◽  
Agnieszka Zuzanna Guštin ◽  
Borut Žužek
Keyword(s):  
Fatigue Life ◽  
Tool Steel ◽  
Cold Work ◽  
Surface Texturing ◽  
Laser Surface ◽  
Laser Surface Texturing ◽  
Fatigue Properties ◽  
Laser Texturing ◽  
Coating Deposition ◽  
Cold Work Tool Steel

The aim of this research was to investigate the influence of laser surface texturing sequence on the fatigue properties of cold-work tool steel. For this reason, polished hourglass-type test specimens made from cold-work tool steel (K890) were surface textured using laser texturing. Surface textures were introduced before and after hard coating deposition (TiAlN) with the aim to investigate the sequence of surface-texturing process. It was found that coating deposition prolongs the fatigue life. The fatigue life behaviour can be influenced also by the sequence of surface texturing. In the case when laser texturing is done after coating deposition, it suffers in fatigue life properties. From a lower magnification, a fractured surface looks like a quasi-ductile fracture, but a closer look reveals that there is very little plastic deformation and some small flat regions can be seen with clear evidence of a brittle fracture mechanism with cleavage. Due to low fracture toughness of investigated steel, no fatigue striations of crack growth steps were found on the fractured surfaces.

Synergistic effect on the tribological properties of tool steel through the use of laser surface texturing channels and nanoparticles

Wear ◽  
2019 ◽  
Vol 426-427 ◽  
pp. 1354-1361 ◽  
Author(s):  
Demófilo Maldonado-Cortés ◽  
Laura Peña-Parás ◽  
Vicente Barrios-Saldaña ◽  
José Santiago Cruz-Bañuelos ◽  
Marcin Adamiak
Keyword(s):  
Synergistic Effect ◽  
Tool Steel ◽  
Tribological Properties ◽  
Surface Texturing ◽  
Laser Surface ◽  
Laser Surface Texturing

Combination of laser surface texturing and DLC coating on PEEK for enhanced tribological properties

2017 ◽  
Vol 329 ◽  
pp. 29-41 ◽  
Author(s):  
Johnny Dufils ◽  
Frédéric Faverjon ◽  
Christophe Héau ◽  
Christophe Donnet ◽  
Stéphane Benayoun ◽  
...  
Keyword(s):  
Tribological Properties ◽  
Surface Texturing ◽  
Laser Surface ◽  
Laser Surface Texturing ◽  
Dlc Coating

scholarly journals Laser surface texturing of tool steel: textured surfaces quality evaluation

2016 ◽  
Vol 6 (1) ◽  
Author(s):  
Peter Šugár ◽  
Jana Šugárová ◽  
Martin Frnčík
Keyword(s):  
Laser Beam ◽  
Tool Steel ◽  
Surface Texturing ◽  
Scanning Speed ◽  
Laser Surface ◽  
Laser Surface Texturing ◽  
Fibre Laser ◽  
Textured Surfaces ◽  
Machined Surface ◽  
Ytterbium Fibre Laser

Abstract In this experimental investigation the laser surface texturing of tool steel of type 90MnCrV8 has been conducted. The 5-axis highly dynamic laser precision machining centre Lasertec 80 Shape equipped with the nano-second pulsed ytterbium fibre laser and CNC system Siemens 840 D was used. The planar and spherical surfaces first prepared by turning have been textured. The regular array of spherical and ellipsoidal dimples with a different dimensions and different surface density has been created. Laser surface texturing has been realized under different combinations of process parameters: pulse frequency, pulse energy and laser beam scanning speed. The morphological characterization of ablated surfaces has been performed using scanning electron microscopy (SEM) technique. The results show limited possibility of ns pulse fibre laser application to generate different surface structures for tribological modification of metallic materials. These structures were obtained by varying the processing conditions between surface ablation, to surface remelting. In all cases the areas of molten material and re-cast layers were observed on the bottom and walls of the dimples. Beside the influence of laser beam parameters on the machined surface quality during laser machining of regular hemispherical and elipsoidal dimple texture on parabolic and hemispherical surfaces has been studied.

scholarly journals Improvement of Tribological Properties through the Application of Laser Surface Texturing and Nanolubricants in CNC Equipment Elements

2020 ◽  
Vol 42 (1) ◽  
pp. 159-164
Author(s):  
D. Maldonado-Cortés ◽  
L. Peña-Parás ◽  
C. Leyva Leyva ◽  
A. Guerrero ◽  
A. Garza ◽  
...  
Keyword(s):  
Tribological Properties ◽  
Surface Texturing ◽  
Laser Surface ◽  
Laser Surface Texturing

scholarly journals Effect of Laser surface texturing on coating adherence and tribological properties of CuNiIn and MoS2 coating

2021 ◽  
Author(s):  
Vishal Uttamra Bagade ◽  
Muthukannan Duraiselvam ◽  
Niranjan Sarangi ◽  
Parthiban K
Keyword(s):  
Tribological Properties ◽  
Surface Texturing ◽  
Surface Preparation ◽  
Laser Surface ◽  
Fretting Wear ◽  
Atmospheric Plasma ◽  
Laser Surface Texturing ◽  
Preparation Process ◽  
Preparation Methods ◽  
Grit Blasting

Abstract In aero gas turbine engine, copper nickel indium (CuNiIn) and molybdenum loaded disulphide (MoS2) duplex coating is applied on Ti6Al4V blades in bladed disk configuration of low pressure and high pressure compressor. Coating between blade and disk is provided to prevent fretting wear due to direct metal to metal contact of Ti6Al4V. Generally, grit blasting will be done for preparation of the surface before the application of coating. Laser surface texturing (LST) process can be explored by aero engine industry as a new surface preparation process for compressor blades. To compare two different surface preparation methods, Ti6Al4V surface is prepared by two different processes, conventional grit blasting as well as laser surface texturing (LST). LST with different elliptical and square patterns are created on Ti6Al4V. Surface topography is analyzed by SEM and WLI. CuNiIn is sprayed by atmospheric plasma spray (APS) and MoS2 on top of CuNiIn by painting and curing. Effects of surface preparation on coating adherence as well as on tribological properties are studied. The results showed that geometry and dimensions of LST pattern influences the coating adherence and wear performance. LST process can be optimized for better performance and explored as an alternative surface preparation process in industry for thermal spray coatings.

Tribological Properties of Laser Surface Texturing and Molybdenizing Duplex-Treated Ni-Base Alloy

2010 ◽  
Vol 53 (2) ◽  
pp. 195-202 ◽  
Author(s):  
JIANLIANG LI ◽  
DANGSHENG XIONG ◽  
HONGYAN WU ◽  
ZHONGJIA HUANG ◽  
JIHUI DAI ◽  
...  
Keyword(s):  
Tribological Properties ◽  
Base Alloy ◽  
Surface Texturing ◽  
Laser Surface ◽  
Laser Surface Texturing
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