Research Article

INVESTIGATION OF LOOSENING RESISTANCE UNDER ASSEMBLY CONDITIONS USING DIFFERENT LOCKING CHEMICALS AND LOCK NUTS

Volume: 7 Number: 1 June 30, 2024
Baybars Sarıca , Tolga Aydın , Samed Enser *, Umut İnce
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The International Journal of Materials and Engineering Technology Cover The International Journal of Materials and Engineering Technology
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INVESTIGATION OF LOOSENING RESISTANCE UNDER ASSEMBLY CONDITIONS USING DIFFERENT LOCKING CHEMICALS AND LOCK NUTS

Abstract

Abstract Fasteners are subjected to repetitive and variable loads in the areas where they are used. This situation creates some risks such as loosening or fracture of fasteners, result the failure of the joint. Locking chemicals applied on the bolt to prevent loosening that may occur under assembly conditions are used extensively, especially in the automotive industry. By using locking chemicals selected in accordance with the assembly area and fastener, it is aimed to prevent the loosening of the assembly parts under vibration. There are commercial products that offer different properties that can be used in the mass production of locking chemicals. Within the scope of the study, the performance of three different commercial locking chemicals against loosening was investigated and used standard M8 bolts and nuts. In addition, the M8 DIN 980 lock nut, which is used in joints that are at risk of loosening in vibrating areas, was also added to the studies. Due to the effect of the coefficient of friction on the clamping load, all fasteners were coated with the same coating to ensure equivalence in installation conditions. The vibration performances of the locking chemicals were investigated with the Junker vibration test. The results were analyzed comparatively and the joint condition with the highest vibration resistance was determined. As a result, it was observed that the use of locking chemicals and lock nuts increased the loosening resistance.

Keywords

Bolt , Lock nut , Locking Chemical , Assembly , Junker vibration test

References

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  9. Ganeshmurthy, S., Housari, B., Nassar, S. A., Investigation of the effect of adhesive coating on the performance of threaded fasteners, SAE Transactions 2007, 707-717
  10. Çavdar, K., Öngerilmeli Cıvata Bağlarında Çözülme Problemleri. Uludağ Üniversitesi Mühendislik Fakültesi Dergisi 2015, 20 (1):103-118

Details

Primary Language

English

Subjects

Dynamics, Vibration and Vibration Control , Machine Design and Machine Equipment

Journal Section

Research Article

Authors

Baybars Sarıca This is me
0009-0005-3352-6636
Türkiye

Tolga Aydın This is me
0000-0002-4979-1486
Türkiye

Early Pub Date

June 14, 2024

Publication Date

June 30, 2024

Submission Date

December 22, 2023

Acceptance Date

June 4, 2024

Published in Issue

Year 2024 Volume: 7 Number: 1

IZ

https://izlik.org/JA36UM77GD

Cite

RIS / Bibtex
APA
Sarıca, B., Aydın, T., Enser, S., & İnce, U. (2024). INVESTIGATION OF LOOSENING RESISTANCE UNDER ASSEMBLY CONDITIONS USING DIFFERENT LOCKING CHEMICALS AND LOCK NUTS. The International Journal of Materials and Engineering Technology, 7(1), 26-31. https://izlik.org/JA36UM77GD

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