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Tytuł:
Surface Texturing on a CNC Machine Tool Using a Laser
Autorzy:
Józwik, Jerzy
Dziedzic, Krzysztof
Powiązania:
https://bibliotekanauki.pl/articles/2201901.pdf
Data publikacji:
2023
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
laser micromachining
laser surface texturing
CNC machine tool
surface topography
Opis:
In the paper stages of the process of constituting a surface with the texture of the injection mold of a wheeled vehicle steering wheel using laser technology was discusses. During micromachining process with texturing there is a 5-axis CNC-controlled CNC machine TOOL LASERTEC 65 Shape used with a rigid monoBLOCK structure with Siemens 840D sl control, equipped with a fiber laser with a power of 100W, a wavelength of 1064 nm and a focal length of 181 mm. Processing technology was prepared using Autodesk Maya, Adobe Photoshop, Adobe Illustrator, NX9, Lastex v. 2.27.26 computer programs and machine tool control systems. Results of machining the steering wheel of a wheeled vehicle with a concentrated laser beam are discussed. Geometric structure of the surface after texturing was evaluated. Presented technology can be used to obtain the desired texture properties on the surface of the parts.
Źródło:
Advances in Science and Technology. Research Journal; 2023, 17, 1; 160--172
2299-8624
Pojawia się w:
Advances in Science and Technology. Research Journal
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Uncertainty evaluation of multilateration-based geometric error measurement considering the repeatibility of positioning of the machine tool
Autorzy:
Liu, Xingbao
Xia, Yangqiu
Rui, Xiaoting
Powiązania:
https://bibliotekanauki.pl/articles/2206791.pdf
Data publikacji:
2023
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
sequential-multilateration
laser tracker
machine tool
geometric error
measurement uncertainty
Opis:
The sequential multilateration principle is often adopted in geometric error measurement of CNC machine tools. To identify the geometric errors, a single laser tracker is placed at different positions to measure the length between the target point and the laser tracker. However, the measurement of each laser tracker position is not simultaneous and measurement accuracy is mainly subject to positioning repeatability of the machine tool. This paper attempts to evaluate the measurement uncertainty of geometric errors caused by the positioning repeatability of the machine tool and the laser tracker spatial length measurement error based on the Monte Carlo method. Firstly, a direct identification method for geometric errors of CNC machine tools based on geometric error evaluation constraints is introduced, combined with the geometric error model of a three-axis machine tool. Moreover, uncertainty contributors caused by the repeatability of positioning of numerically controlled axes of the machine tool and the laser length measurement error are analyzed. The measurement uncertainty of the geometric error and the volumetric positioning error is evaluated with the Monte Carlo method. Finally, geometric error measurement and verification experiments are conducted. The results show that the maximum volumetric positioning error of the machine tool is 84.1 μm and the expanded uncertainty is 5.8 μm ( = 2). The correctness of the geometric error measurement and uncertainty evaluation method proposed in this paper is verified compared with the direct geometric error measurement methods.
Źródło:
Metrology and Measurement Systems; 2023, 30, 1; 49--63
0860-8229
Pojawia się w:
Metrology and Measurement Systems
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Development and verification of a high-precision laser measurement system for straightness and parallelism measurement
Autorzy:
Xu, Peng
Li, Rui Jun
Zhao, Wen Kai
Chang, Zhen Xin
Ma, Shao Hua
Fan, Kuang Chao
Powiązania:
https://bibliotekanauki.pl/articles/1849006.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
straightness
parallelism
laser measurement system
machine tool
Opis:
A laser measurement system for measuring straightness and parallelism error using a semiconductor laser was proposed. The designing principle of the developed system was analyzed. Addressing at the question of the divergence angle of the semiconductor laser being quite large and the reduction of measurement accuracy caused by the diffraction effect of the light spot at the long working distance, the optical structure of the system was optimized through a series of simulations and experiments. A plano-convex lens was used to collimate the laser beam and concentrate the energy distribution of the diffraction effect. The working distance of the system was increased from 2.6 m to 4.6 m after the optical optimization, and the repeatability of the displacement measurement is kept within 2.2 m in the total measurement range. The performance of the developed system was verified by measuring the straightness of a machine tool through the comparison tests with two commercial multi-degree-of-freedom measurement systems. Two different measurement methods were used to verify the measurement accuracy. The comparison results show that during the straightness measurement of the machine tool, the laser head should be fixed in front of the moving axis, and the sensing part should move with the moving table of the machine tool. Results also show that the measurement error of the straightness measurement is less than 3 m compared with the commercial systems. The developed laser measurement system has the advantages of high precision, long working distance, low cost, and suitability for straightness and parallelism error measurement.
Źródło:
Metrology and Measurement Systems; 2021, 28, 3; 479-495
0860-8229
Pojawia się w:
Metrology and Measurement Systems
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Development and verification of a high-precision laser measurement system for straightness and parallelism measurement
Autorzy:
Xu, Peng
Li, Rui Jun
Zhao, Wen Kai
Chang, Zhen Xin
Ma, Shao Hua
Fan, Kuang Chao
Powiązania:
https://bibliotekanauki.pl/articles/1849049.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
straightness
parallelism
laser measurement system
machine tool
Opis:
A laser measurement system for measuring straightness and parallelism error using a semiconductor laser was proposed. The designing principle of the developed system was analyzed. Addressing at the question of the divergence angle of the semiconductor laser being quite large and the reduction of measurement accuracy caused by the diffraction effect of the light spot at the long working distance, the optical structure of the system was optimized through a series of simulations and experiments. A plano-convex lens was used to collimate the laser beam and concentrate the energy distribution of the diffraction effect. The working distance of the system was increased from 2.6 m to 4.6 m after the optical optimization, and the repeatability of the displacement measurement is kept within 2.2 m in the total measurement range. The performance of the developed system was verified by measuring the straightness of a machine tool through the comparison tests with two commercial multi-degree-of-freedom measurement systems. Two different measurement methods were used to verify the measurement accuracy. The comparison results show that during the straightness measurement of the machine tool, the laser head should be fixed in front of the moving axis, and the sensing part should move with the moving table of the machine tool. Results also show that the measurement error of the straightness measurement is less than 3 m compared with the commercial systems. The developed laser measurement system has the advantages of high precision, long working distance, low cost, and suitability for straightness and parallelism error measurement.
Źródło:
Metrology and Measurement Systems; 2021, 28, 3; 479-495
0860-8229
Pojawia się w:
Metrology and Measurement Systems
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Development and verification of a high-precision laser measurement system for straightness and parallelism measurement
Autorzy:
Xu, Peng
Li, Rui Jun
Zhao, Wen Kai
Chang, Zhen Xin
Ma, Shao Hua
Fan, Kuang Chao
Powiązania:
https://bibliotekanauki.pl/articles/1849061.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
straightness
parallelism
laser measurement system
machine tool
Opis:
A laser measurement system for measuring straightness and parallelism error using a semiconductor laser was proposed. The designing principle of the developed system was analyzed. Addressing at the question of the divergence angle of the semiconductor laser being quite large and the reduction of measurement accuracy caused by the diffraction effect of the light spot at the long working distance, the optical structure of the system was optimized through a series of simulations and experiments. A plano-convex lens was used to collimate the laser beam and concentrate the energy distribution of the diffraction effect. The working distance of the system was increased from 2.6 m to 4.6 m after the optical optimization, and the repeatability of the displacement measurement is kept within 2.2 m in the total measurement range. The performance of the developed system was verified by measuring the straightness of a machine tool through the comparison tests with two commercial multi-degree-of-freedom measurement systems. Two different measurement methods were used to verify the measurement accuracy. The comparison results show that during the straightness measurement of the machine tool, the laser head should be fixed in front of the moving axis, and the sensing part should move with the moving table of the machine tool. Results also show that the measurement error of the straightness measurement is less than 3 m compared with the commercial systems. The developed laser measurement system has the advantages of high precision, long working distance, low cost, and suitability for straightness and parallelism error measurement.
Źródło:
Metrology and Measurement Systems; 2021, 28, 3; 479-495
0860-8229
Pojawia się w:
Metrology and Measurement Systems
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Research and development of laser engraving and material cutting machine from 3D printer
Autorzy:
Durna, Antonin
Fries, Jiri
Hrabovsky, Leopold
Sliva, Ales
Zarnovsky, Jozef
Powiązania:
https://bibliotekanauki.pl/articles/410205.pdf
Data publikacji:
2020
Wydawca:
STE GROUP
Tematy:
3D printer
CNC machine
engraving
laser
Opis:
This article deals with the adjustment of a 3D printer for laser engraving and material cutting. The print head can be fitted with a solid laser diode module, which achieves a compact size while retaining its useful power. Two paths lead to the use of such a concept. It is possible to equip the existing print head with a module, which also brings a number of disadvantages such as, for example, the reduction of the printing space or the need for a suitable mounting design. A more elegant solution is to consider this in the design of a 3D printer and design a system to exchange the print heads for 3D printing and laser engraving. Such a solution allows full utilization of the workspace and simple installation of the effector for the required type of work. According to the installed power of the laser diode, it is possible not only to engrave but also cut material such as thin wood, veneer or acrylic glass. The use of such a machine is not only for graphic elements but for the creation of various stencils, boxes or simple models, which can be made up of plastic-burning pieces. The laser module is controlled by a driver, which is designed for the device. This is connected to a 3D printer control board. It is, therefore, necessary for the control board to have at least two pins, which can be controlled after adjusting the control firmware. Most laser modules are normally equipped with an adjustable lens, which is used to concentrate the focus of a laser for the given distance against the worktop. Thus, the modified 3D printer can perform its function as a multi-purpose CNC machine, while a basic platform similar for both devices is used.
Źródło:
Management Systems in Production Engineering; 2020, 1 (28); 47-52
2299-0461
Pojawia się w:
Management Systems in Production Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Study on noises influencing the accuracy of CNC machine straightness measurements methods based on beam position detection
Autorzy:
Budzyn, Grzegorz
Rzepka, Janusz
Powiązania:
https://bibliotekanauki.pl/articles/100115.pdf
Data publikacji:
2020
Wydawca:
Wrocławska Rada Federacji Stowarzyszeń Naukowo-Technicznych
Tematy:
laser interferometer
ISO230
machine geometry
fibre laser
straightness measurement
Opis:
Fast, easy and accurate measurement of geometry of numerically controlled machines has always been challenging. With the use of a laser interferometer, it can be precise but it is complex. On the other side, the use of granite reference blocks is fairly easy yet quite limited for many machine types and sizes. Nowadays the improvements in technology open a new way – the instruments based on the detection of laser beam spot position. Those instruments are accurate and easy to use yet, comparing to the laser interferometers and granite blocks, they are sensitive to parameters of a laser source and to changing environmental conditions. In the paper, we analyse experimentally the influence of the type and parameters of laser source on the accuracy of straightness measurements. The most commonly met in practical applications a free space and fibre based laser sources are studied and compared. The influence of environmental conditions on measurement accuracy is also shown. Finally, the conclusions about optimal methods of improving the accuracy of beam position detection methods are drawn.
Źródło:
Journal of Machine Engineering; 2020, 20, 3; 76-84
1895-7595
2391-8071
Pojawia się w:
Journal of Machine Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Creation of promising transportation devices using mechanisms based on flexible tubular elements
Autorzy:
Baryshnikova, Olga
Powiązania:
https://bibliotekanauki.pl/articles/374087.pdf
Data publikacji:
2019
Wydawca:
Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
Tematy:
flexible tubular element
Bourdon tube
transportation device
tamping machine
paving slab layer
laser ablation
elastyczny element rurowy
rurka Bourdona
urządzenie transportowe
podbijarka
warstwa płyty chodnikowej
ablacja laserowa
Opis:
This article presents the design of various mechanisms, the main working element of which is a flexible tubular element. The principle of operation and advantages of flexible elements allowing to create perspective devices and mechanisms are described. The problems of selection of the geometrical parameters of flexible tubular springs and evaluation of the strength characteristics are solved.
Źródło:
Transport Problems; 2019, 14, 3; 41-48
1896-0596
2300-861X
Pojawia się w:
Transport Problems
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Comparison of static and dynamic laser based positioning methods for characterization of CNC machines
Autorzy:
Budzyn, G.
Rzepka, J.
Kaluza, P.
Powiązania:
https://bibliotekanauki.pl/articles/100137.pdf
Data publikacji:
2018
Wydawca:
Wrocławska Rada Federacji Stowarzyszeń Naukowo-Technicznych
Tematy:
laser interferometer
ISO230
machine geometry
positioning measurement
Opis:
In the paper we compare the laser based measurements of linear parameters of numerically controlled machines. A new dynamic method of measuring machine positioning is described and compared with the widely used static method. The algorithms of the dynamic method are presented and the comparison results of both methods are shown. It is proven that with the new method the measurement time of linear errors of the CNC machines can be reduced significantly. Additionally the machine wear-out in the linear axes can also be easily and efficiently monitored.
Źródło:
Journal of Machine Engineering; 2018, 18, 4; 39-46
1895-7595
2391-8071
Pojawia się w:
Journal of Machine Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Influence of the surface condition on the adhesion of composite materials to enamel
Wpływ stanu powierzchni na adhezję materiału kompozytowego do szkliwa
Autorzy:
Szmyd, M.
Paliga, D.
Wasilewski, A.
Powiązania:
https://bibliotekanauki.pl/articles/129554.pdf
Data publikacji:
2018
Wydawca:
Politechnika Rzeszowska im. Ignacego Łukasiewicza. Oficyna Wydawnicza
Tematy:
strength machine
dental treatment
laser
drill
maszyna wytrzymałościowa
obróbka zębów
wiertło stomatologiczne
Opis:
This work presents a method of measuring the maximum stress that a composite sample fixed on a tooth surface will withstand. The test was carried out for 3 different surface conditions of enamel: no processing, after treatment with a diamond drill, and after treatment with a diode laser. The force of adhesion was measured in an Instron 5960 testing machine. The results demonstrate a significant effect of the surface condition on the adhesion of the composite to the enamel.
Praca przedstawia metodę pomiaru maksymalnego naprężenia jakie wytrzyma próbka kompozytu umocowana na powierzchni zęba. Badanie przeprowadzono dla 3 różnych stanów powierzchni szkliwa: bez obróbki, po obróbce wiertłem diamentowym oraz po obróbce laserem diodowym. Siłę adhezji zmierzono w maszynie wytrzymałościowej Instron 5960. Wyniki potwierdzają znaczący wpływ stanu powierzchni na adhezję kompozytu do szkliwa.
Źródło:
Physics for Economy; 2018, 2, No.1; 43-54
2544-7742
2544-7750
Pojawia się w:
Physics for Economy
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Accuracy and repeatability positioning of high-performance lathe for non-circular turning
Autorzy:
Majda, P.
Powałka, B.
Powiązania:
https://bibliotekanauki.pl/articles/94160.pdf
Data publikacji:
2017
Wydawca:
Politechnika Poznańska. Wydawnictwo Politechniki Poznańskiej
Tematy:
machine tool
laser interferometer
cyclic pitch error
accuracy
repeatability
obrabiarki
interferometr laserowy
cykliczny błąd skoku
dokładność
powtarzalność
Opis:
This paper presents research on the accuracy and repeatability of CNC axis positioning in an innovative lathe with an additional X2 axis. This axis is used to perform movements synchronized with the angular position of the main drive, i.e. the spindle, and with the axial feed along the Z axis. This enables the one-pass turning of non-circular surfaces, rope and trapezoidal threads, as well as the surfaces of rotary tools such as a gear cutting hob, etc. The paper presents and discusses the interpretation of results and the calibration effects of positioning errors in the lathe’s numerical control system. Finally, it shows the geometric characteristics of the rope thread turned at various spindle speeds, including before and after-correction of the positioning error of the X2 axis.
Źródło:
Archives of Mechanical Technology and Materials; 2017, 37; 85-90
2450-9469
Pojawia się w:
Archives of Mechanical Technology and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Elimination of thermal drift in measuring the positioning accuracy of a three axis milling machine
Autorzy:
Stejskal, T.
Dovica, M.
Demeč, P.
Svetlík, J.
Rajťuková, V.
Powiązania:
https://bibliotekanauki.pl/articles/102352.pdf
Data publikacji:
2017
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
accuracy
laser interferometer
positioning
machine tool
Opis:
The aim of this paper is to draw attention to more reliable verification method of positioning accuracy. The improvement lies in mathematical elimination of thermal impact during the measurement process. This thermal impact, always present during the motion of movable parts, is of a special systemic character. It increases the indefiniteness of measurement of the classic measurement method. This measurement uncertainty can be reduced by implementing the procedure introduced in this paper. The reduction can be achieved by separating the temperature impact from other sources of inaccuracy. Such separation is a very new solution. The methodology relies on mathematical processing and does not depend on the manner of accuracy measurement. The evaluation method also yields diagnostic information on the machine’s condition. The experiments were performed with the use of laser interferometer.
Źródło:
Advances in Science and Technology. Research Journal; 2017, 11, 4; 159-167
2299-8624
Pojawia się w:
Advances in Science and Technology. Research Journal
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Impact of the technological conditions of plane surface machining on a triangular milling cutter on the residual hysteresis of the movement axis of the machine
Autorzy:
Stejskal, T.
Kráľ, J.
Rudy, V.
Melko, J.
Rjabušin, A.
Pavliková, L.
Powiązania:
https://bibliotekanauki.pl/articles/957896.pdf
Data publikacji:
2017
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
machine tools
laser interferometer
hysteresis
Opis:
The paper deals with the possibilities of measuring the residual displacement or hysteresis on the lateral direction of the movement forces caused by the cutting forces of the machining. A special adjustment of laser interferometry assemblies was used for measurement. The measurement results indicate that the positioning accuracy in addition to the cutting forces also influences the position of the displaced moving substances and the temperature. The complex effect of these parameters is greatly dependent on the design of the machine.
Źródło:
Advances in Science and Technology. Research Journal; 2017, 11, 3; 240-245
2299-8624
Pojawia się w:
Advances in Science and Technology. Research Journal
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Precyzyjne cięcie laserem tlenku cyrkonu IV (ZrO2)
Precision laser cutting of zirconium dioxide
Autorzy:
Nowak, A.
Wyszyński, D.
Powiązania:
https://bibliotekanauki.pl/articles/339818.pdf
Data publikacji:
2017
Wydawca:
Polskie Towarzystwo Zarządzania Produkcją
Tematy:
obróbka laserowa
LBM
laser Nd
YAG
tlenek cyrkonu IV
precyzyjna obróbka laserowa
materiały trudnoobrabialne
precision laser machining
difficult-to-machine materials
ZrO2
Opis:
Precision laser machining of a difficult to machine materials is a complex issue and requires the involvement of the wide knowledge and experience in the field of science materials and physical phenomena occurring in the within the interaction site of the laser beam with the material workpiece. Correct selection of the laser source and equipment system with appropriate instrumentation allows the processing of materials in an efficient and cost-effective way and also allows to fulfill the requirements for treatment of the materials on a micro scale. From the analysis of the results it can be concluded that the edges resulting from laser treatment carried grooves are sharp (samples 9, 10, 11), which predisposes the type of processing to perform the blades of the cutting tools. Depth obtained in these tests grooves (single-pass laser beam) may indicate a high performance cutting process of cutting teeth. In view of the aforementioned facts, it is expected to shorten the preparation time of the cutting blade, thereby reducing production costs. As a result, it is possible to increase the competitiveness of companies doing good quality tools made lower than the standard cost-effectively, and thus this type of solution has the potential of development for native Polish enterprises, so that they offer can become complementary to the tycoons on the Polish market aspect of the production of custom, dedicated ie. “tailor-made” tools. Based on the study it can be concluded that the use of DPSS Nd: YAG laser (λ = 532 nm), with appropriate selection of process parameters for precise and efficient laser shaping of difficult to cut materials, such as described in the work - zirconium dioxide. Further studies will aim to establish guidelines for the planning process precision laser cutting of other materials from the group of difficult ones, such as PCD, diamond, Al.2O3 (sapphire) or c-BN. This is particularly important from the point of view of the precise shape of cutting tools used widely in the aerospace, automotive and carpentry.
Źródło:
Zarządzanie Przedsiębiorstwem; 2017, 20, 2; 13-19
1643-4773
Pojawia się w:
Zarządzanie Przedsiębiorstwem
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Angular positioning accuracy of rotary table and repeatability of five-axis machining centre dmu 65 monoblock
Autorzy:
Józwik, J.
Czwarnowski, M
Powiązania:
https://bibliotekanauki.pl/articles/103390.pdf
Data publikacji:
2015
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
positioning
diagnostics
accuracy
CNC machine tool
laser interferometer
Opis:
The study aims to evaluate angular positioning accuracy and repeatability of DMU 65 monoBLOCK numerically controlled machine tool. The measurements were carried out with XL-80 Laser Interferometer with XR20-W attachment. The measurements were conducted according to the standard PN-ISO230-2. Test methodology and measurement results analysis are presented in a form of figures and tables. The final part presents conclusions from the analysis.
Źródło:
Advances in Science and Technology. Research Journal; 2015, 9, 28; 89-95
2299-8624
Pojawia się w:
Advances in Science and Technology. Research Journal
Dostawca treści:
Biblioteka Nauki
Artykuł
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