Optical profilometer with confocal chromatic sensor for high-accuracy 3D measurements of the uncirculated and circulated coins

Kapłonek, Wojciech; Sutowska, Marzena; Ungureanu, Miorița; Çetinkaya, Kerim

doi:10.30464/jmee.2018.2.3.181

Cited by 12 publications

(7 citation statements)

References 33 publications

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“…The measurements were carried out using an optical profilometer (Talysurf CLI 2000; Taylor-Hobson, Leicester, Great Britain) equipped with laser triangulation sensor LK-031 (Keyence Corp., Osaka, Japan), which allowed measurements in the range of 10 mm at resolutions of 1 µm (vertical) and 30 µm (lateral). The description of the general view of the instrument is given in detail in the works of Guo et al [31], Elmas et al [32], and Kapłonek et al [33].…”

Section: Measurement Of the Texture Of The Rake Face Of The Industriamentioning

confidence: 99%

Experimental Studies on Durability of PVD-Based CrCN/CrN-Coated Cutting Blade of Planer Knives Used in the Pine Wood Planing Process

et al. 2020

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The condition of the cutting tool is one of the most important factors as it directly affects the technological and economic efficiencies of the woodworking process. The large variety of raw materials of wood combined with possible impurities and inclusion of solids puts high demands on planing machines. One of the methods to modify their operational properties is to apply antiwear coating on their working surfaces using vacuum deposition methods, such as physical vapor deposition (PVD). The use of such coatings reduces the adhesion of planing products to the surface of industrial planer knives, reduces the friction between the cutting tool and the workpiece, and limits the penetration of heat into the tool, thereby contributing to extending its effective working life. This study examines the impact of PVD-based CrCN/CrN coating on the operational durability and intensity of wear of planer knives operating in production conditions compared to unmodified knives (typically used in the wood processing industry for pine wood planing). For the unmodified and CrCN/CrN-coated planing blades (before and after processing), detailed analyses were carried out. These analyses included determining the rounding radius and profile along the blade (worn edge displacement), calculating surface texture parameters of the rake face of planer knives, and carrying out visual microscopic analysis of its condition. The results of the experiments indicated an increase in durability of up to 142% for the CrCN/CrN-coated tools. It was also found that the use of PVD-based modified industrial planer knives turned out to be more beneficial in each analyzed area of analysis.

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Section: Measurement Of the Texture Of The Rake Face Of The Industriamentioning

confidence: 99%

Experimental Studies on Durability of PVD-Based CrCN/CrN-Coated Cutting Blade of Planer Knives Used in the Pine Wood Planing Process

et al. 2020

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“…In carrying out measurements, a Talysurf CLI 2000 multisensory optical profilometer (Taylor-Hobson, Leicester, Great Britain) was used. This instrument was extensively described by Kapłonek et al [ 44 ], while its selected applications were presented by Yuan et al [ 45 ], Nadolny et al [ 46 ], and Fan [ 47 ]. Considering the relatively large variation in the heights of irregularities occurring on shaped surfaces due to the AWJ cutting process, measurement of their surface texture was carried out using a type LK-031 laser sensor (Keyence Corp., Osaka, Japan) [ 41 ] installed in the measuring head of the Talysurf CLI 2000.…”

Section: Methodology Of Experimental Studiesmentioning

confidence: 99%

“…In carrying out measurements, a Talysurf CLI 2000 multisensory optical profilometer (Taylor-Hobson, Leicester, Great Britain) was used. This instrument was extensively described by Kapłonek et al [44], while its After the cutting process started, the geometry of the spiral and the cutting path of the sample was generated using the OMAX Layout software (OMAX Corp., Kent, WA, USA). Then, in the OMAX Make software, the cutting path created in OMAX Layout was opened.…”

Section: Characteristics Of Measurement Systems and Course Of Measurement Processmentioning

confidence: 99%

Influence of Variable Radius of Cutting Head Trajectory on Quality of Cutting Kerf in the Abrasive Water Jet Process for Soda–Lime Glass

et al. 2020

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The main innovation of this article is the determination of the impact of curvature of a shape cut out in a brittle material using an abrasive water jet (AWJ) process as an important factor of the machined surfaces. The curvature of a shape, resulting from the size of the radius of the cutting head trajectory, is one of the key requirements necessary for ensuring the required surface quality of materials shaped by the abrasive water jet process, but very few studies have been carried out in this regard. An important goal of the experimental studies carried out here and presented in this work was to determine its influence on the quality of the inner and outer surfaces of the cutting kerf. This goal was accomplished by cutting the shape of a spiral in soda–lime glass. For such a shape, the effect of radius of the trajectory of the cutting head on selected parameters of the surface texture of the inner surface of the cutting kerf (IS) and the outer surface of the cutting kerf (OS) was studied. The obtained results of the experimental studies confirmed that the effect of the curvature of the cut shape is important from the point of view of the efficiency of the glass-based brittle material-cutting process using AWJ. Analyses of the surface textures of the areas located in the upper part of the inner and outer surfaces separated by the use of AWJ machining showed that the OS surfaces are characterized by worse technological quality compared with IS surfaces. Differences in the total height of surface irregularities (given by St amplitude parameter), determined on the basis of the obtained results of the measurements of both surfaces of the cutting kerf, were as follows: ΔStr = 50 = 0.6 μm; ΔStr = 35 = 1 μm; ΔStr = 15 = 1.3 μm. The analysis of values measured in areas located in the more sensitive zone of influence of the AWJ outflow proved that the total height of irregularities (St) of the OS was higher. Differences in the total heights of irregularities for inner and outer surfaces of the cutting kerf were as follows: ΔStr = 50 = 2.1 μm; ΔStr = 35 = 3 μm; ΔStr = 15 = 14.1 μm, respectively. The maximum difference in the total heights of irregularities (St), existing between the surfaces considered in a special case (radius 15 mm), was almost 20%, which should be a sufficient condition for planning cutting operations, so as to ensure the workpiece is shaped mainly by internal surfaces.

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“…The Talyscan CLI 2000 2.6 software was used for realizing the measurement process, whereas the TalyMap Silver 4.1 software using Mountains Technology ® (Digital Surf, Besançon, France) was utilized for the analysis and visualization of the surface microtopography. A detailed description of this older-generation instrument (2003)(2004) was presented in the work of Kapłonek et al [60], whereas its exemplary applications were given by Fan et al [65], Saremi-Yarahmadi et al [66], Beamud et al [67], and Genna et al [68].…”

Section: Characteristics Of Observation Measurement Systemsmentioning

confidence: 99%

High-Accuracy 3D Optical Profilometry for Analysis of Surface Condition of Modern Circulated Coins

et al. 2020

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The article shows that noncontact measurement techniques can be an important support to X-ray-based methods when examining the surface condition of modern circulated coins. The forms and degrees of wear of such coins, affecting their utility values, qualifying them as a legal tender in a given country, can be measured and analyzed, among other things, using advanced high-accuracy optical profilometry methods. The authors presented four analyses carried out for reverses and obverses of round coins (1 zloty, 1 franc, 50 bani, 5 pens) characterized by different degrees of surface wear. All of the coins were measured using 3D optical profilometers (Talysurf CLI 2000 and S neox) representing two generations of these types of systems. The obtained results confirm the validity of the applied high-accuracy measurement systems in conjunction with dedicated software in the presented applications. Examples of the analyses carried out can be a significant source of information on the condition of coins in the context of maintaining their functional properties (selection of appropriate wear–resistant alloys and correctness of the production process).

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Optical profilometer with confocal chromatic sensor for high-accuracy 3D measurements of the uncirculated and circulated coins

Cited by 12 publications

References 33 publications

Experimental Studies on Durability of PVD-Based CrCN/CrN-Coated Cutting Blade of Planer Knives Used in the Pine Wood Planing Process

Experimental Studies on Durability of PVD-Based CrCN/CrN-Coated Cutting Blade of Planer Knives Used in the Pine Wood Planing Process

Influence of Variable Radius of Cutting Head Trajectory on Quality of Cutting Kerf in the Abrasive Water Jet Process for Soda–Lime Glass

High-Accuracy 3D Optical Profilometry for Analysis of Surface Condition of Modern Circulated Coins

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