Strength of Epoxy-Bonded Aluminium Alloy Joints after Sandblasting

Rudawska, Anna; Wahab, Magd Abdel; Müller, Miroslav

doi:10.12913/22998624/147524

Cited by 5 publications

(3 citation statements)

References 52 publications

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“…In abrasive blasting, there are different types of abrasive materials classified in the mineral, agricultural, synthetic and metallic categories [17]. Although sand is mostly preferred, glass, metal, dry ice, coconut shells or plant shells are also used as abrasive materials [18]. Although sandblasting has a wide usage area, it has some drawbacks.…”

Section: Introductionmentioning

confidence: 99%

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Effect of Organic Powders on Surface Quality in Abrasive Blasting Process

Anaç

Doğan

2023

Processes

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Abrasive blasting, sometimes known as sandblasting, is a method used to change the surface condition of materials, clean surfaces, and prepare surfaces for applications such as paint, bonding, coating, etc. The abrasive materials used in abrasive blasting are applied to the surface with compressed air or water and vary according to the purpose of application. The abrasive materials used have negative effects on the environment and human health. So far, organic materials have been used in limited applications in abrasive blasting. However, these materials have a high potential of usage since they are environmentally friendly, safe for human health, and have non-toxic and sustainable properties. In this study, the usability of three different organic wastes (walnut shell, olive pomace and mussel shell) recovered by recycling in abrasive blasting was investigated. In addition, the effect of blasting distance (5, 10 and 15 mm), blasting time (10, 20 and 30 s), powder type (mussel shell, olive pomace and walnut shell) and grain size (38, 45 and 63 µm) on surface roughness have been investigated using the Taguchi L9 experimental design. Regression models were built using ANOVA (Analysis of Variance). Moreover, the surface condition after abrasive blasting was examined using an Al2O3 abrasive and compared with other samples. As a result, 5 mm, 30 s, mussel shell and 45 µm test sets were recommended for “larger is better” and it was determined that the blasting time had the greatest effect on the surface roughness by 50.19%. On the other hand, 10 mm, 20 s, walnut shell and 63 µm test sets were recommended for “smaller is better”, and it was determined that blasting time had the greatest effect on the surface roughness by 39.02%. While there was an increase compared to the surface roughness values before abrasive blasting in the first set of experiments, it was determined that the organic material had a polishing rather than an abrasion effect in the second set of experiments.

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Section: Introductionmentioning

confidence: 99%

“…Rudawska et al [18] sandblasted three different aluminum alloys (EN AW-2024 TO, EN AW-2219 TO and EN AW-2014 T4) using calcined bauxite content (named EB F54 aloxite) at three different blasting pressures (0.41 MPa, 0.51 MPa and 0.56 MPa). The grain size of EB F54 aloxite was between 355 and 300 µm.…”

Section: Introductionmentioning

confidence: 99%

Effect of Organic Powders on Surface Quality in Abrasive Blasting Process

Anaç

Doğan

2023

Processes

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“…The properties and the surface roughness of adherends materials also have a significant impact [ 31 , 32 , 33 , 34 , 35 , 36 , 37 , 38 , 39 ]. The importance of creating irregularities was presented in their work by Li et al [ 40 ].…”

Section: Introductionmentioning

confidence: 99%

Assessment of Surface Treatment Degree of Steel Sheets in the Bonding Process

et al. 2022

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The aim of the paper is to determine the influence of the surface treatment on the adhesive properties of steel sheet surfaces and the strength of the adhesive joints of steel sheets. The paper also aims to assess the degree of steel sheets’ surface treatment in the bonding process. Due to the many methods of surface treatment and types of materials, the assessment of the surface treatment method is extremely important in adhesive processes. Two variants of the surface treatment were used: without a paint coating and with a paint coating, divided into two groups (without degreasing and with degreasing). Additionally, in the case of the analysis of the steel samples without the paint coating, mechanical treatment was applied. Two-component epoxy adhesive, prepared on the basis of bisphenol A and a polyamide curing agent, was used to prepare the single-lap adhesive joints of the steel sheets. The tests determined: (i) the adhesive properties of the steel sheets’ surface based on the measurement of the contact angle of polar and apolar liquids (including wettability, work of adhesion, and surface free energy), (ii) surface roughness parameters (PN EN ISO 4287), and (iii) mechanical properties (load capacity and shear strength) of the steel sheets’ adhesive joints (EN DIN 1465). Contact angle measurements of the steel sheet surfaces showed that the polar liquid better reflects the obtained strength results of the analyzed adhesive joints than the apolar liquid. Furthermore, better wettability of the surface of steel sheets with both polar and apolar liquids was obtained for samples whose surface was subjected to degreasing. It can also be concluded that the wettability of the surface can be used as one of the indicators of the degree of the surface treatment for the bonding process.

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Mechanical Surface Treatment of Adherends for Adhesive Bonding

Rudawska

2023

Progress in Adhesion and Adhesives

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Strength of Epoxy-Bonded Aluminium Alloy Joints after Sandblasting

Cited by 5 publications

References 52 publications

Effect of Organic Powders on Surface Quality in Abrasive Blasting Process

Effect of Organic Powders on Surface Quality in Abrasive Blasting Process

Assessment of Surface Treatment Degree of Steel Sheets in the Bonding Process

Mechanical Surface Treatment of Adherends for Adhesive Bonding

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