Improved manufacturing performance of a new antifriction composite parts based on copper

Jamroziak, Krzysztof; Роїк, Тетяна Анатоліївна; Гавриш, Олег Анатолійович; Віцюк, Юлія Юріївна; Lesiuk, Grzegorz; Correia, José A.F.O.; Jesus, Abílio M.P. De

doi:10.1016/j.engfailanal.2018.04.034

Cited by 18 publications

(15 citation statements)

References 7 publications

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“…Authors of [13][14][15]17] established that a multicomponent oxide film located on regenerated powders of the AM4.5Kd alloy consists of Al 2 O 3 and oxides of alloying elements. It protects wear-resistant material from oxidation at operation in air.…”

Section: Results Of Studying the Operational Properties Of Compositesmentioning

confidence: 99%

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Analysis of the properties of antifriction composites based on aluminum alloy's grinding waste

Роїк

Гавриш

Oliynik

et al. 2018

EEJET

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Розроблено антифрикцiйнi композити на основi регенерованих шлiфувальних вiдходiв алюмiнiєвого сплаву АМ4,5Кд з додаванням твердої змащувальної речовини МоS 2 , що призначенi для роботи у контактних парах постдрукарських машин, таких як фальцювально-клейовi машини та машини для вклеювання в пакування. Аналiз структури нового композиту показав, що легуючi елементи металевої основи утворюють змiцнюючi фази, що рiвномiрно розподiленi в матрицi без сегрегацiйних скупчень, що сприяє пiдвищенню конструкцiйної мiцностi. Дисульфiд молiбдену забезпечує ефект самозмащення контактної пари у процесi експлуатацiї, що обумовлює зниження коефiцiєнту тертя i iнтенсивностi зношування порiвняно з композитним матерiалом без твердого мастила. Структурнi дослiдження засвiдчили рiвномiрнiсть розподiлу твердого мастила в усьому об'ємi композиту, що забезпечує пiдвищення триботехнiчних характеристик завдяки формуванню захисних антизадирних плiвок тертя при роботi деталi складної геометричної форми в умовах самозмащення. Аналiз функцiональних властивостей дозволяє рекомендувати антифрикцiйний композит на основi промислових шлiфувальних вiдходiв алюмiнiєвого сплаву АМ4,5Кд з домiшками твердого мастила -дисульфiду молiбдену МоS 2 для деталей контактних з'єднань складної геометричної форми, що працюють при пiдвищених дискретних швидкостях ковзання i навантаженнях без змащування рiдким мастилом в атмосферi повiтря. Триботехнiчнi випробування продемонстрували, що новий композитний зносостiйкий матерiал, одержаний за розробленою технологiєю виготовлення, дозволяє форсувати гранично-допустимi режими навантаження i робочi швидкостi ковзання при стабiльно високих антифрикцiйних властивостях нових композитних тертьових деталей постдрукарських машинКлючовi слова: шлiфувальнi вiдходи, алюмiнiєвий сплав, тверде мастило, структурнi дослiдження, антифрикцiйнi властивостi, постдрукарськi машини UDC 621.002.3:621.89

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Section: Results Of Studying the Operational Properties Of Compositesmentioning

confidence: 99%

“…Compositions of material of a friction pair, lubricant and the medium where friction occurs determine composition of layers [14][15][16].…”

Section: Investigated Materials and Equipment Used In Experimentsmentioning

confidence: 99%

Analysis of the properties of antifriction composites based on aluminum alloy's grinding waste

Роїк

Гавриш

Oliynik

et al. 2018

EEJET

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“…The use of a certain substance is determined by the material of the contact surfaces, friction conditions, mechanical and chemical properties of substances, their thermal stability in relation to the environment, and interaction with the materials of the friction pair. Currently, more than 100 substances were investigated and described [6,7,[12][13][14][15][16], and they are used as solid lubricants.…”

Section: Preparatory Proceduresmentioning

confidence: 99%

“…Therefore, certain antifriction additives are used when they give the greatest effect precisely for certain specific conditions. Meanwhile, the experience of work [12][13][14][15][16] and the analysis of literary sources on this issue convincingly showed the promise of using calcium fluoride as a solid lubricant specifically for extreme operating conditions (high temperatures, loads, aggressive environment-air).…”

Section: Preparatory Proceduresmentioning

confidence: 99%

Structure and Properties of New Antifriction Composites Based on Tool Steel Grinding Waste

et al. 2021

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This article investigates the impact of manufacturing technology on the structure, mechanical, and tribological properties of new antifriction composite materials based on R6M5 high-speed tool steel grinding waste. The characteristics of the new composite’s structure formation and its impact on properties after use of the established technological modes, including grinding waste regeneration, were illustrated. It was demonstrated that such technology is capable of ensuring microheterogeneous structure. The material’s structure consists of the metal matrix based on R6M5 high-speed tool steel waste and uniformly distributed CaF2 solid lubricant in the steel matrix. As compared to known iron-based composites, this structure promotes a high degree of mechanical and tribological properties. During tribological tests, anti-seize thin films of 15–20 μm are formed on the contacting surfaces. These constantly renewable films contribute to the high antifriction properties of the composite under the studied friction conditions and provide a self-lubricating effect. Such films fully cover both the material’s surface and the counterface. The formation of antifriction films results in the self-lubrication mode. The findings of the study open up the possibility of predicting the friction behavior of a composite at high temperatures by selecting the initial metal grinding waste to ensure the appropriate level of properties. The extensive use of various alloy steel-based industrial grinding waste in the re-production cycle would significantly contribute to resolving the global environmental problem of protecting the environment from pollution.

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“…Bearings based on cast bronze Cu83Sn7Zn3Pb7 or Cu85Sn5Zn5Pb5 (C93200 ASTM Standard, USA) are currently used in the offset cylinders units of rolled newspaper machines such as, the Solna D390 and Solna D480 (Sweden). Such bronze bearings can work when greased with liquid oil [6][7][8].…”

Section: Introductionmentioning

confidence: 99%

New Antifriction Composites for Printing Machines Based on Tool Steel Grinding Waste

et al. 2022

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In this article, we present research results on the structure and properties of new self-lubricating antifriction composites based on 4H4VMFS tool steel grinding waste with solid lubricant additives. The new composites are designed to work in the friction units of offset cylinders in printing machines at rotation speeds up to 7000 rpm and increased loads up to 5.0 MPa. The developed technology formed composites with a fine-grained heterophase structure with a metal matrix base of tool steel 4H4VMFS regenerated grinding waste, consisting of high-alloy α−solid solution and hard grains of alloying element carbides, as well as evenly distributed CaF2 antiseizure solid lubricant. This structure ensured the formation of composites with favorable functional properties. During the friction process, antiseizure films were formed on the contact surfaces, resulting in a self-lubrication mode. Comparative tests for friction and wear showed significant advantages of the new waste composite compared to cast bronze parts, which are traditionally used in the friction units of offset cylinders of rolled newspaper printing machines. The stable operation of the new composite made it possible to ensure a “wear-free” effect. Studies have shown the importance and prospects of using the wide range of valuable grinding waste in the reproduction cycle to manufacture quality composites. Reuse of such waste would significantly protect the environment from pollution connected with human activity industrial and mitigate negative impacts on ecosystems and the biosphere.

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Improved manufacturing performance of a new antifriction composite parts based on copper

Cited by 18 publications

References 7 publications

Analysis of the properties of antifriction composites based on aluminum alloy's grinding waste

Analysis of the properties of antifriction composites based on aluminum alloy's grinding waste

Structure and Properties of New Antifriction Composites Based on Tool Steel Grinding Waste

New Antifriction Composites for Printing Machines Based on Tool Steel Grinding Waste

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