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Materials (Basel) 2022 Apr 27;15(9). Epub 2022 Apr 27.

MONARIS UMR8233, Sorbonne Université, CNRS, Campus P. et M. Curie, 4 Place Jussieu, 75005 Paris, France.

This study investigates the comparison of the Raman signatures of different phases used in underglaze, inglaze and overglaze decors of selected European, Chinese and Japanese porcelains and enameled metalworks, which are particularly representative of technological developments in enameling. Specifically, the article deals with the main structural types or host networks (corundum/hematite, spinels, zircon, cassiterite, pyrochlore, apatite, sphene, etc.) used for colored enamels on porcelain, earthenware or metal rather than considering all types of pigments and opacifiers. Read More

Opt Express 2022 Apr;30(8):12615-12629

With well-known speckle measurement techniques, the root mean square height as well as the autocorrelation length of isotropic surfaces can be determined quickly and over a large area of interest. Beyond that, the present article studies the speckle-based measurement of anisotropic surfaces. For this purpose, a measurement setup and evaluation algorithm are presented that enable the characterization of unidirectionally anisotropic surfaces machined by grinding. Read More

Appl Opt 2022 Apr;61(10):2582-2590

A line contact ring magnetorheological finishing (RMRF) process is conceptualized and developed for the finishing of precision optical surfaces. This tool is analogous to the cup wheel tool widely used in the optical industry for forming and fine grinding but semi-rigid in nature, thus removing high irregularities preferentially. This paper presents detailed simulations of the development of the new, to the best of our knowledge, RMRF tool and its experimental use and suitability in the polishing process. Read More

Polymers (Basel) 2022 Apr 9;14(8). Epub 2022 Apr 9.

Mechanical and Manufacturing Department, Faculty of Engineering, Mondragon University, 20500 Mondragon, Spain.

Although much research has been carried out in the field of the milling of GFRP (Glass Fibre Reinforced Polymer) composites, the complexity of the process is such that it is still not mastered in many industrial cases. The current work is aimed at studying the influence of three different geometries of PCD (PolyCrystalline Diamond) and cemented tungsten carbide cutting tools during the up-milling of GFRP composites at fixed cutting conditions ( = 502 m/min and = 420 mm/min). Delamination, cutting forces and tool wear are compared at the fresh and worn states, and the correlation between the lifespan and the cost of the cutting tool is analysed. Read More

Int J Occup Saf Ergon 2022 Apr 13:1-27. Epub 2022 Apr 13.

INRS, Work Equipment Engineering department, Vandoeuvre, France.

Using cobot could relieve workers of strenuous and repetitive tasks while preserving their expertise. To understand the consequences of using cobot on the occurrence of MSDs, within a theoretical framework based on the activity-centred ergonomics, an example of a cobot used in grinding activities in real work situation is studied. This paper analyse the evolution of the biomechanical dimension of the professional gestures of grinders when using the cobot. Read More