Effect of laser bump texture combination characteristics on friction-wear properties of roll surface

Yang, Xiping; Fu, Yonghong; Ji, Jinghu

doi:10.1108/ilt-11-2021-0452

Cited by 2 publications

(1 citation statement)

References 24 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…These advantageous characteristics of non-smooth structures have potential applications in improving the surface properties of mechanical parts. This can lead to reduced drag and enhanced wear resistance [33][34][35][36][37]. Given the successful application of bionic non-smooth structures in engineering, it prompts the question of whether non-smooth structures can be harnessed to enhance the wear resistance of piston rings.…”

Section: Introductionmentioning

confidence: 99%

Bionic Design and Optimization of the Wear-Resistant Structure of Piston Rings in Internal Combustion Engines

Tian,

Zhang,

Zhou

et al. 2023

Lubricants

View full text Add to dashboard Cite

Internal combustion engines, during their operation, subject the piston to high-temperature and high-pressure conditions, requiring it to endure intense, continuous reciprocating motion. This strenuous process leads to significant wear and tear. Among the engine’s crucial components, the piston ring plays a pivotal role but is particularly susceptible to wear. Therefore, extensive research has been devoted to investigating the wear of piston rings, a critical sealing component within internal combustion engines. To address the high cost of existing coating methods, which hinders widespread application, we propose a bionic design approach inspired by groove structures observed on earthworm bodies, aimed at enhancing the wear resistance of piston rings. Bionic piston rings featuring optimally designed groove structures inspired by the earthworm’s anatomy were designed. These rings exhibited varying groove depths (1 mm, 2 mm, and 3 mm), groove widths (0.1 mm, 0.3 mm, and 0.5 mm), and groove spacings (0.1 mm, 0.2 mm, and 0.3 mm). We conducted thermal–structural coupling analyses on both standard piston rings and these bionic counterparts. The results revealed that the maximum stress was concentrated at the first piston ring, precisely at the opposing region of the end gap. Thus, the initial piston ring endured the primary frictional losses. Moreover, a comparison of stress levels between bionic rings and the standard ring revealed that the bionic groove structure substantially reduced stress and minimized stress concentration, thus enhancing wear resistance. Groove width had the most notable influence on wear performance, followed by groove depth and groove spacing. Optimal wear resistance was achieved when the groove depth was 3 mm, groove width was 0.1 mm, and groove spacing was 0.1 mm. Subsequently, we constructed a piston ring friction test bench to validate the wear resistance of the most effective piston ring. The results indicated that the wear resistance of the bionic piston ring exceeded that of the standard piston ring by up to 19.627%. Therefore, incorporating a bionic groove structure within the piston ring can effectively reduce surface friction and enhance wear resistance. This, in turn, can enhance the operational lifespan of internal combustion engines under favorable working conditions.

show abstract

Section: Introductionmentioning

confidence: 99%

Bionic Design and Optimization of the Wear-Resistant Structure of Piston Rings in Internal Combustion Engines

Tian,

Zhang,

Zhou

et al. 2023

Lubricants

View full text Add to dashboard Cite

show abstract

Wear Characteristics of Textured Floating Oil Seal Surfaces: A Simulation and Experimental Study

Zhao,

Li,

Zhai

et al. 2024

Coatings

View full text Add to dashboard Cite

This study aimed to analyze the effects of surface texture on the wear amount of floating oil seals and how these effects are related to the texture parameters. To achieve this, a finite element model was constructed to simulate the frictional behavior of seal discs under both textured and non-textured conditions. The study focused on a specific set of texture parameters. The texture depth was held constant, while the area density and diameter of the textures were varied. Three different area densities were considered: 10%, 20%, and 30%. Similarly, three different texture diameters were included in the study: 100, 200, and 300 μm. For each combination of area density and diameter, three different texture depths were evaluated: 50, 100, and 150 μm. The results show that compared with the non-texture, the wear loss of the texture is significantly reduced, and the wear loss is reduced by 56.8%. As the texture depth increases, the corresponding increase in wear remains relatively small. In contrast, increasing the texture diameter and area density leads to a more significant increase in wear, indicating that these two parameters have a more significant effect on the wear behavior of the seal. Under the condition of dry friction, the average friction coefficient analysis shows that the texture area density is 30%, the texture diameter is 200 μm, and the minimum value is about 0.602. Under the lubrication condition, the lowest average friction coefficient is about 0.147, the texture area density is 20%, and the texture diameter is 300 μm.

show abstract

Effect of laser bump texture combination characteristics on friction-wear properties of roll surface

Cited by 2 publications

References 24 publications

Bionic Design and Optimization of the Wear-Resistant Structure of Piston Rings in Internal Combustion Engines

Bionic Design and Optimization of the Wear-Resistant Structure of Piston Rings in Internal Combustion Engines

Wear Characteristics of Textured Floating Oil Seal Surfaces: A Simulation and Experimental Study

Contact Info

Product

Resources

About