The Relationship between the Model of the Laser Biomimetic Strengthening of Gray Cast Iron and Matching between Different Brake Pads

Yang, Haiyang; Wang, Qingnian; Zhou, Ti; Zhou, Hong

doi:10.3390/met10020184

Cited by 5 publications

(3 citation statements)

References 25 publications

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“…Although generally, for automobile components, biomimicry has been hosted with introducing additional coatings to the surfaces, modified properties also can be obtained by altering the original surface structure of components with micro material removal processes. One good example of this is the laser treatment of the surfaces made from cast iron when fabricating brake drums [69] and brake pads [70], to improve the wear resistance capabilities. This method brings out the bionic surface with different shapes, structures, and soft and hard tissues similar to the surface of a biological organism [71], [72].…”

Section: Wear Resistancementioning

confidence: 99%

Biomimetic Designs for Automobile Engineering: A Review

Wijegunawardana

Mel

2021

IJAME

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Automobile engineering often demands creative and innovative concepts to achieve their performance and efficiency targets. However, the strategies used to create these concepts are evolving with time. Recently, heightened attention has been noticed to using biomimetic concepts in the field of automobile design. The studies that apply biomimicry to automobile design often exhibit improvements in vehicle performance and fuel efficiency. Consequently, biomimetic concepts have extended an opportunity to the automobile industry to generate futuristic designs with advanced technology. However, the innovations and inventions in biology are usually published with more complex terminology that is not convenient for the research community working on automobile engineering. Hence, a notable delay is present in transferring the recent discoveries in biology to engineering researches so that they can develop strategies to mimic them. The purpose of this paper is to provide a brief overview of the biomimetic design approaches that have been and can be used in automobile design. In addition, the paper includes a classification of biomimetic concepts, which reveals the current research interests and highlights the areas with a deficit of research that is required to be addressed extensively in the future.

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Section: Wear Resistancementioning

confidence: 99%

Biomimetic Designs for Automobile Engineering: A Review

Wijegunawardana

Mel

2021

IJAME

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“…Thus, the hard unit and the base metal are combined to form a soft/hard interphase bionic surface composed of different structures and shapes. Previous test results showed that the hard element embedded in the matrix has a "dike" and "nail pile" effect [15,16]. This hard element can effectively prevent the growth of cracks in the brake drum, reduce the growth rate of surface cracks in the gray cast iron, and improve the service life of the brake drum.…”

Section: Introductionmentioning

confidence: 99%

Effects of Laser Melting Distribution on Wear Resistance and Fatigue Resistance of Gray Cast Iron

Yang

Zhou

Wang

et al. 2020

Metals

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The coupling bionic surface is generally prepared by laser melting on the surface of a gray iron brake hub, which can allow the brake hub to achieve excellent wear resistance and fatigue resistance. The designs of most previous experiments have been based on independent units that were uniform in their distribution patterns. Although some progress has been made in the optimization of cell features, there is still room for further improvement with respect to bionics and experimental optimization methods. Here, experiments on units with non-uniform distributions of different distances were used to rearrange and combine the bionic elements. This paper is that the original uniform distribution laser melting strengthening model was designed as a non-uniform distribution model, and the heat preservation and tempering strengthening effect of continuous multiple melting strengthening on the microstructure of the melting zone is discussed. The mechanism of crack initiation and the mode of crack propagation were analyzed. The relationship between the internal stress in the melting zone and the crack initiation resistance was also discussed. In this paper, the mechanism of different spacing distribution on the surface of gray cast iron by laser remelting is put forward innovatively and verified by experiments, which provides a solid theoretical basis for the follow-up industrial application.

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“…[14][15][16] Yang et al studied the matching relationship between grey cast iron with the bionic coupling model and different brake pads, different bionic coupling models had different effects on the wear of different types of brake pads. 17 Tong et al investigated the effect of C content on the thermal fatigue performance of bionic coupled grey cast iron, the higher the C content was, the better the thermal fatigue resistance of grey cast iron was, but the lower the C content was to 3.9%. 18 Lu et al found the laws of thermal fatigue and wear resistance of different graphite types to bionic coupled grey cast iron.…”

Section: Introductionmentioning

confidence: 99%

Effects of angle formation between melted zone and friction direction on thermal fatigue and wear resistance of truck drum brake

Zhou

et al. 2020

Proceedings of the Institution of Mechanical Engineers, Part D:

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The failure of grey cast iron drum brake is mainly caused by thermal fatigue crack running through the top along the axial direction, which has the characteristics of regional failure. By using the advantages of laser fabrication technology, the single models with five different angles combined with the anti-crack ring were designed. The optical microscope, scanning electron microscope and X-ray diffraction were used to characterize the microstructure and phase of the drum brake material grey cast iron and the bionic coupling unit. Both single models and double combination models were tested for thermal fatigue and wear after thermal fatigue, respectively. The effects of angle on the thermal fatigue and wear resistance of the bionic coupling models were investigated. Experimental results show that the microstructure of the unit was better than that of the base grey cast iron due to the appearance of ledeburite, martensite and residual austenite after laser treatment. Besides, thermal fatigue crack has a great influence on wear performance. The thermal fatigue crack and wear loss weight are the least in the model with anti-crack ring + 45°angle, the main crack length is the shortest. The service life of the drum brake with the double combination bionic coupling model is increased by 50% compared with that of the untreated drum brake in bench test.

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The Relationship between the Model of the Laser Biomimetic Strengthening of Gray Cast Iron and Matching between Different Brake Pads

Cited by 5 publications

References 25 publications

Biomimetic Designs for Automobile Engineering: A Review

Biomimetic Designs for Automobile Engineering: A Review

Effects of Laser Melting Distribution on Wear Resistance and Fatigue Resistance of Gray Cast Iron

Effects of angle formation between melted zone and friction direction on thermal fatigue and wear resistance of truck drum brake

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