Failure analysis of leaded brass bolt

Hagarová, Mária; Peterka, Pavel; Mantič, Martin; Vojtko, Marek; Baranová, Gabriela; Matvija, Miloš

doi:10.1016/j.engfailanal.2022.106899

Cited by 3 publications

(1 citation statement)

References 22 publications

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“…Chipping can cause the edge fracture of the machining tool, impairing cutting-edge sharpness and leading to tool blunting. This type of tool failure increased cutting forces, resulting therefore in further degradation of the machining performance (longer chips, higher fluctuations and chattering, part distortion), causing serious defects in the machined surface quality [38][39][40]. The friction on surfaces between the tool and machined material generated a dynamically discontinuous process.…”

Section: Measurement and Evaluation Of Vibration Intensitymentioning

confidence: 99%

Effect of Wear on Vibration Amplitude and Chip Shape Characteristics during Machining of Eco-Friendly and Leaded Brass Alloys

Monka

Monková

Pantazopoulos³

et al. 2023

Metals

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The dynamic stability of the machining set and the entire cutting process, together with the appropriate form of chips generated during machining under the given conditions, are the basic prerequisites for autonomous machining in accordance with the Industry 4.0 trend. The research, based on a newly designed method, aims to study the frequency response of the machining system to different values of tool wear and cutting speed, which cause the worsening of the machined parts’ quality and the instability of the whole cutting process. The new idea is based on the inverse principle, in which the wear with various values of VB was artificially prepared in advance before machining. Consequently, the effect of artificial wear and cutting speed on vibration and chip shape characteristics were studied. Three types of brass alloys were used within the experiments as the machined materials. Measured data were statistically processed and the desired dependencies were plotted. Chips were collected for each combination of machining conditions, while the article presents a database of the obtained chip shapes at individual cutting speeds so that they can be compared and classified. The results showed that brass alloys CW510L and CW614N exhibit an average of three times lower vibration damping compared to the CW724R alloy, while relatively good chip formation was noted in the evaluated machining conditions even without the use of a chip breaker. The problematic chip shape occurred only in some cases at the machining of CW510L and CW724R, which cannot be generalized.

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Section: Measurement and Evaluation Of Vibration Intensitymentioning

confidence: 99%

Effect of Wear on Vibration Amplitude and Chip Shape Characteristics during Machining of Eco-Friendly and Leaded Brass Alloys

Monka

Monková

Pantazopoulos³

et al. 2023

Metals

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show abstract

Failure analysis of the 304SS nut in rural atmosphere

Liu,

Wang,

et al. 2023

Engineering Failure Analysis

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Failure of Threaded Connections: A Literature Review

et al. 2023

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Threaded fasteners are vastly used in the industry due to ease of mounting and dismounting and flexibility of design. Nonetheless, several researchers indicate that most failures recorded on nearly any kind of machinery and vehicles are initiated at fasteners. This review paper aims at summarising the failures involving threaded fasteners available in the literature. The analysis involves categorization of the failures according to the root cause, e.g., incorrect assembly, overload, fatigue, preload loss during operation, among others. The purpose of this review paper is to give a systematic glance of the topic to the scientific and technical community, to correctly orient future investigations on the broad topic of threaded fasteners.

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Failure analysis of leaded brass bolt

Cited by 3 publications

References 22 publications

Effect of Wear on Vibration Amplitude and Chip Shape Characteristics during Machining of Eco-Friendly and Leaded Brass Alloys

Effect of Wear on Vibration Amplitude and Chip Shape Characteristics during Machining of Eco-Friendly and Leaded Brass Alloys

Failure analysis of the 304SS nut in rural atmosphere

Failure of Threaded Connections: A Literature Review

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