2013
DOI: 10.1007/s10973-013-3443-2
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Heat affected zones in polymer laser marking

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Cited by 15 publications
(9 citation statements)
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References 33 publications
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“…Both of them revealed a decrease in plasticity during heating and cooling cycles. Such behavior was confirmed by Maries [26], Bolocan [27], Savu [28,29] and Rapa [30], the last confirming, also, that the melt viscosity is given as the ratio of shear stress to shear rate. All the reported results confirm various modifications of the characteristics of PP after a thermal cycle consisting of heating plus cooling, even if the polymeric material is a composite [31].…”
Section: Additive Manufacturing General Principles Terminology 2017supporting
confidence: 57%
“…Both of them revealed a decrease in plasticity during heating and cooling cycles. Such behavior was confirmed by Maries [26], Bolocan [27], Savu [28,29] and Rapa [30], the last confirming, also, that the melt viscosity is given as the ratio of shear stress to shear rate. All the reported results confirm various modifications of the characteristics of PP after a thermal cycle consisting of heating plus cooling, even if the polymeric material is a composite [31].…”
Section: Additive Manufacturing General Principles Terminology 2017supporting
confidence: 57%
“…Marking is part of mass production, and the speed of the product often cannot be followed with the naked eye, and also, sometimes all the products have to be marked with an individual marker. Polymers can be marked with a laser with one of the following mechanisms: ablation, bleaching (thermal bleaching) [1], carbonisation [2], colour change (colour-formation, colouring, colour marking [3,4]), darkening/whitening [5,6], dehydration [7], doping [8,9], engraving [10], foaming [8,[11][12][13], melting, optical breakdown [14], oxidation/reduction on metallized surfaces [15], transfer and unzipping [16,17]. Laser beam can make pits and rims [18], craters [19], but there are papers in which the same interaction between laser beam and material is called once ablation [20], sometimes etching [21].…”
Section: Introductionmentioning
confidence: 99%
“…Markings must satisfy certain technological criteria, such as visibility, legibility, durability or laser markability [42][43][44][45], but marking speed (cycle time) is also a basic criterion in industrial applications. During laser marking of thermoplastics, various interactions take place in the polymer, some of which are hardly known as the pulse time of the laser can be measured in µs, ns, ps or fs [46][47][48][49][50][51], but the temperature during marking can reach up to 800°C [8]. Thermoplastics without fillers or pigments can be divided into three main groups according to their suitability for laser marking: - Members of group 1 absorb laser rays well, therefore they are carbonized and the marking will be dark.…”
Section: Introductionmentioning
confidence: 99%
“…Maroti [18,19] reported modifications of the physical properties of PLA during 3D printing, modifications which affect its functionality in medical implants. Due to these conclusions the paper aims to bring results of short evaluations of the modification of different characteristics of the PLA which was deposited in 3D printing followed by laser heating (dedicated to marking) process [20,21]. It will be used Differential Scanning Calorimetry (DSC) techniques to evaluate the thermal characteristics which give relevant information on the plasticity of the PLA in different stages related to the complex process of 3D printing followed by laser heating for marking [22,23].…”
Section: Introductionmentioning
confidence: 99%