Objective assessment of the surface quality of coated surfaces

Labrosse, Q.; Hoppins, C. P.; Summerscales, John

doi:10.1784/insi.2011.53.1.16

Cited by 2 publications

(4 citation statements)

References 32 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The results of the fibre-reinforced plate surface finish quality ranking were previously presented [20] (see Figure 5 in the reference). Table 1 presents the detailed ranking results for the three expert observers (John Summerscales, Quentin Labrosse and Richard Cullen) and the variation (range) in ranking for each plate.…”

Section: Resultsmentioning

confidence: 99%

“…The equipment costs (digital camera, light-proof box and personal computer) were less than US$2000. The full details of this prior experimental work, including the plate materials, manufacture and dimensions, the digital imaging apparatus and ranking results, were described in an earlier issue of Insight [20] . All of the following numerical analyses were performed using the Matlab computing environment [21,22] .…”

Section: Methodsmentioning

confidence: 99%

“…surface finish quality of fibre-reinforced composite plates. A set of sample plates was previously ranked for surface finish by expert observers, wave-scan DOI and fractal dimension analysis of digital photographs, as described in Insight by Labrosse et al [20] . The new analysis and results presented here include validation of the previous plate image rankings, application of the WTA technique to the images to derive an instrumental measure of surface finish quality based on the panel images and confirmation of the rank correlation between the human expert surface finish quality ratings and those from the WTA image analysis process.…”

Section: Automotive Industrymentioning

confidence: 99%

See 2 more Smart Citations

Ranking of fibre-reinforced composite plate surface finish quality by wavelet texture analysis

Palmer¹,

Hall²,

Summerscales³

2016

Insight

Self Cite

View full text Add to dashboard Cite

In the automotive and other industries, the visual appearance of external surfaces is a key factor in perceived product quality. Traditionally, the quality of an automotive surface finish has been judged by expert human auditors. A set of 17 fibre-reinforced composite plates was previously manufactured to have a range of surface finish qualities and these plates were ranked by three expert observers and also optically digitally imaged. Following validation of the previous rankings, the wavelet texture analysis (WTA) technique was applied to the digital photographs to derive an instrumental measure of surface finish quality based on the panel images. The rank correlation between the human expert surface finish quality ratings and those from the WTA image analysis process was found to be positive, large and statistically significant. This finding indicates that WTA could form the basis of an inexpensive and practical instrumental method for the ranking of fibre-reinforced composite surface finish quality.

show abstract

Section: Resultsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Automotive Industrymentioning

confidence: 99%

See 1 more Smart Citation

Ranking of fibre-reinforced composite plate surface finish quality by wavelet texture analysis

Palmer¹,

Hall²,

Summerscales³

2016

Insight

Self Cite

View full text Add to dashboard Cite

show abstract

“…These include: triangulation, shadow moiré, projected fringes and holographic interferometry. Labrosse et al (2011) captured digital images from light reflected from gel-coated surfaces onto a screen, then used image analysis to convert the grey-scale image to binary (black-orwhite) and determine the fractal dimension to measure the surface quality. Each single number measurement was correlated to subjective assessments of surface quality for various gel-coated surfaces and to Wave-Scan DOI measurements.…”

Section: Surface Finish (Measurement Of Quality)mentioning

confidence: 99%

In-mould gel-coating of polymer composites: a review

Rogers

Hoppins²,

Gombos

et al. 2014

Journal of Cleaner Production

View full text Add to dashboard Cite

Fibre-reinforced polymer matrix composites find use in most transport applications, chemical plant, renewable energy systems, pipelines and a variety of other industries. These applications often require a surface finish for cosmetic and/or durability reasons. The coating is usually polyester or vinyl-ester gel-coat painted or sprayed onto the mould tool before the structural composite is laminated. Alternatively a (typically polyurea) coating may be sprayed onto the surface of the cured composite part. The process may emit vapours (normally volatile organic compounds, VOC) into the workplace and the environment. This review paper will consider the potential for in-mould gel-coating as a route to improved workplace conditions and reduced environmental impact. It will also address measurement of quality by adhesion, surface characterisation, and long-term durability. Customer satisfaction is the key driver for gel-coated products.

show abstract

Objective assessment of the surface quality of coated surfaces

Cited by 2 publications

References 32 publications

Ranking of fibre-reinforced composite plate surface finish quality by wavelet texture analysis

Ranking of fibre-reinforced composite plate surface finish quality by wavelet texture analysis

In-mould gel-coating of polymer composites: a review

Contact Info

Product

Resources

About