Surface Characteristics and Cavitation Damage in 8090Al–Li Alloy by Using Cavitation Water Jet Peening Processing

Sekyi-Ansah, Joseph; Wang, Yun; Quaisie, James Kwasi; Li, Fuzhu; Yu, Chen; Asamoah, Emmanuel; Liu, Hong

doi:10.1007/s40997-020-00401-5

Cited by 10 publications

(3 citation statements)

References 37 publications

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“…To investigate the influence of the incident pressure on the width of the cavitation bulging zone. The experiment used a target distance of 120 mm and an impact time of 120 secs, varying the incident pressure (8,12,16, and 20 MPa) on the width range of the cavitation bulging zone of the 304 stainless steel foil bulged part, as shown in Figure 6. It can be observed from the figure that when the pressure was 8 MPa, the range of the cavitation bulging zone was 13.9 ~ 21.1 mm, also when the pressure was 12 MPa, the range of the cavitation bulging zone was 10.6 ~ 17.3 mm.…”

Section: Effect Of Incident Pressure On the Range Of Cavitation Zonementioning

confidence: 99%

“…Surface roughness and work hardening had an impact on the fatigue strength of each peening process. Macron [12] utilized Al 7075-T651 to study the nozzle size scaling impact in co-flow cavitating water jet peening. The results reveal a significant rise in cavitation intensity as nozzle size increases, as well as a significant reduction in the processing time required for strip curvature saturation and residual stress.…”

Section: Introductionmentioning

confidence: 99%

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A Comparison Study on Micro-Bulging and Shortless Peening Processes Using Water Jet Cavitation

Quaisie¹,

Yamba²,

Sekyi-Ansah³

et al. 2021

IJEAST

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This paper presents a comparative study using a newly technology called water jets cavitation to fabricate micro feature on 304 stainless steel foils with a thickness of 100 µm and surface enhancement of 8090AlLi alloy sample with a thickness of 4 mm, where angular nozzle and a designed cavitation system were used with an incident pressure of 8-20 MPa. The bulged sample and the effect of incident pressure on the cavitation zone range were investigated. The experimental results indicated that the formed sample bulging depth of the outer ring shock zone and the bulging depth of the jet shock zone were not ideal, while the pits in the cavitation shock zone (that is, pits 2~4 and 10~12) obtained good geometric characteristics. Finally, the consistency of the maximum bulging depth was relatively good. The micro-bulged parts showed that the micro-pits in the cavitation shock zone had a large bulging depth and their uniformity was relatively good, indicating that the circular array feature micro-die has good performance in the cavitation water jet shock micro-bulging process. The effect of incident pressure on the range of cavitation zone, also indicated that the effective area of action of the cavitation water jet showed a ring. That is when the incident pressure was 20 MPa with a target distance of 120 mm, the maximum cavitation shock (bulging) zone showed rings of 3.5 ～21.1 mm with the 304 stainless steel foil and 3.5 mm~21.4 mm also with the 8090Al-Li alloy plate which were approximately same.

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Section: Effect Of Incident Pressure On the Range Of Cavitation Zonementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A Comparison Study on Micro-Bulging and Shortless Peening Processes Using Water Jet Cavitation

Quaisie¹,

Yamba²,

Sekyi-Ansah³

et al. 2021

IJEAST

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show abstract

“…Brazing and soldering are methods of joining materials in which melted filler material is added between the joined surfaces (Kah et al, 2013). Solid-state welding does not require the melting of the filler material's base because it only involves plastic deformation and diffusion (Yun et al, 2019;Sekyi-Ansah et al, 2020). Welding technology is now available in all areas of manufacturing, including rail, roads, shipbuilding, large dam construction, and various projects, pipelines, various power plants, and the automobile industry.…”

Section: Introductionmentioning

confidence: 99%

Experimental studies on fillet weldment joints by artisans in Ghana’s Western Region

Acquah,

Sekyi-Ansah

2024

JGhIE

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Constant progress, demand in the manufacturing of mechanisms parts, and the ability to join parts together is another critical aspect of manufacturing for assemblers. Joining methods plays a significant role and welding must be constantly improved, experimented with, and upgraded due to its increasing use in all aspects of manufacturing. The quality of a weld joint is highly dependent on the process parameter. Welds are examined to ensure that they meet specifications through various experimental processes ranging from computational networks, evolutionary algorithms, non-destructive testing (NDT) and destructive testing (DE) to ascertain the quality of joints. The main objective of the study was to ascertain the quality of welded joints through non-destructive evaluation (NDE). To achieve this goal, an experimental method of four (4) NDE methods were employed to evaluate the quality of weldment joints on a mild steel material joined using manual metal arc welding (MMAW) process in selected fabrication shops in Takoradi-Kokompe, Ghana. Steel specimens were prepared and taken to the artisans to be created into corner joints using the fillet method. The specimens were tested using non-destructive testing techniques. The results on the welded joints were evaluated using the AWS D1.1 code of acceptance for structural steels. The results revealed that all welded joints from fabricators failed to meet the AWS D1.1:2000 acceptance criteria and, thus, had to be rejected. The results implies that through the artisans have worked for many years in the welding trade, their lack of competence and skills in the selection of right input welding parameters contributed to the results. The results implies that, the finished artefacts may look fine but internal structures may contribute to future failure of the fabricated artefacts.

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A review on peening processes and its effect on surfaces

Qutaba

Asmelash

Saptaji

et al. 2022

Int J Adv Manuf Technol

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Surface Characteristics and Cavitation Damage in 8090Al–Li Alloy by Using Cavitation Water Jet Peening Processing

Cited by 10 publications

References 37 publications

A Comparison Study on Micro-Bulging and Shortless Peening Processes Using Water Jet Cavitation

A Comparison Study on Micro-Bulging and Shortless Peening Processes Using Water Jet Cavitation

Experimental studies on fillet weldment joints by artisans in Ghana’s Western Region

A review on peening processes and its effect on surfaces

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