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

Sedlaček, Marko; Guštin, Agnieszka Zuzanna; Žužek, Borut

doi:10.3390/met10121636

Cited by 3 publications

(2 citation statements)

References 31 publications

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“…Patterns resembling longitudinal lines in the direction of sheet travel show better performance in reducing the COF compared to patterns composed of transverse and cross cavities, owing to their tendency for mechanical interaction with surface asperities of the workpiece. Sedlaček et al [209] performed the laser texturing of the surface of K890 cold work steel tools before and after TiAIN coating deposition to investigate the effect of the surface-texturing process sequence on its fatigue life. It has been found that when laser texturing is performed after applying the coating, the fatigue strength properties of the tool surface are impaired.…”

Section: Structured and Textured Tool Surfacesmentioning

confidence: 99%

Approaches for Preventing Tool Wear in Sheet Metal Forming Processes

Trzepieciński

2023

Machines

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Sheet metal forming processes, the purpose of which is to give the shaped material appropriate mechanical, dimensional and shape properties, are characterised by different values of unit pressures and lubrication conditions. Increasing the efficiency of tool work by increasing their durability, efficiency and reliability is still one of the main indicators of increasing production efficiency. Tool wear in metal forming technologies significantly differs from the character of wear in other methods of metalworking, such as machining. This article presents the characteristics of tool wear mechanisms used in sheet metal forming. Possibilities of increasing the durability of tools by applying coatings produced by laser techniques, chemical vapour deposition and chemical vapour deposition are also discussed. Great emphasis is placed on self-lubricating and functional materials and coatings. Current trends in lubricants and lubrication methods in sheet forming, including tool texturing, are also presented.

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Section: Structured and Textured Tool Surfacesmentioning

confidence: 99%

Approaches for Preventing Tool Wear in Sheet Metal Forming Processes

Trzepieciński

2023

Machines

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“…Similarly, they can act as lubricant reservoirs, improving the load-carrying capacity of the lubricant film due to a cavitation lift force [9][10][11][12][13][14]. However, texturing decreases the fatigue life of the textured components [15].…”

Section: Introductionmentioning

confidence: 99%

Tribological Wear Effects of Laser Texture Design on AISI 630 Stainless Steel under Lubricated Conditions

Salguero

Sol

Dominguez³

et al. 2022

Metals

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Surface texturing is used in many applications to control the friction and wear behaviour of mechanical components. The benefits of texture design on the tribological behaviour of conformal surfaces are well known. However, there is a big dependency between the geometrical features of the texture and the texture’s performance. In this paper, the effect of laser texturing parameters on textured geometrical features is studied, as well as its role in the tribological behaviour of AISI 630 steel under lubrication and high-contact pressure conditions. The results show a linear impact of the energy density on the surface quality, whereas the scanning speed influences the homogeneity of the sample. Nevertheless, the surface integrity is also affected by the laser parameters, reducing the micro-hardness on the textured area by up to 33%. Friction coefficient average values and stability presented high variations depending on the sample parameters. Finally, the wear mechanisms were analysed, detecting abrasion for the disc and adhesion for the pin.

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