Relevant bibliographies by topics / Cylindricity Tolerance

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Academic literature on the topic 'Cylindricity Tolerance'

Author: Grafiati
Published: 4 June 2021
Last updated: 9 February 2022

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Journal articles on the topic "Cylindricity Tolerance"

1

Chahbouni, Mouhssine, Said Boutahari, and Driss Amegouz. "Influence of form deviations on the tolerance analysis." International Journal of Engineering & Technology 3, no. 3 (2014): 343. http://dx.doi.org/10.14419/ijet.v3i3.2969.

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The objective of this paper is to present the influence of form deviations on the tolerance analysis of an assembly. For this we will study initially the tolerance analysis using the deviations and clearances domains method, a second time we will integrate the influence of form tolerances on the allowable deviation domain. To illustrate this analysis we used a classical assembly with position and form tolerances (coaxiality and cylindricity). Finally a comparative study between the two cases was illustrated. Keywords:Tolerance Analysis, CAD/CAM, Assembly Systems, Engineering Drawings.
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2

Weihua, Ni, and Yao Zhenqiang. "Integrating cylindricity error into tolerance analysis of precision rotary assemblies using Jacobian–Torsor model." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 227, no. 11 (2013): 2517–30. http://dx.doi.org/10.1177/0954406213475553.

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In this study, the cylindricity error was integrated into the tolerance analysis of precision rotary assemblies using Jacobian–Torsor model. The contact method was developed to rapidly determine the actual fitting clearance through the virtual assembling of the mating cylindrical parts using Monte Carlo simulation. By modifying the expressions of small displacement torsors of the cylinder pairs, the actual fitting clearance between the bore and the shaft was taken into account, which overcame the shortage of Jacobian–Torsor model that the form error cannot be processed. The effects of the cylindricity error and the number of lobes on the actual fitting clearance and the functional requirements were analyzed in detail. The results show that the cylindricity error has significant influence on the actual fitting clearance and the final functional requirements, and it should not be ignored in the tolerance analysis for precision rotary assemblies.
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3

Weihua, Ni, and Yao Zhenqiang. "Cylindricity modeling and tolerance analysis for cylindrical components." International Journal of Advanced Manufacturing Technology 64, no. 5-8 (2012): 867–74. http://dx.doi.org/10.1007/s00170-012-4078-3.

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4

Abbassi, Amira, Ali Trabelsi, Sofien Akrichi, and Noureddine Ben Yahia. "Assessment of cylindricity and roughness tolerances of holes drilled in marble using multiple regression and artificial intelligence." Advances in Mechanical Engineering 13, no. 8 (2021): 168781402110406. http://dx.doi.org/10.1177/16878140211040647.

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The Calacatta-Carrara marble is widely used due to its excellent physico-chemical characteristics and attractive aspect. However, the sensitivity of this materiel, when performing delicate manufacturing operations, presents for the engineers a hard challenge to overcome. This issue is mainly encountered with complex shapes of parts, for which it is difficult to preserve surface integrity and avoid geometric defects. The paper aims at finding out optimal drilling parameters of cutting in the Calacatta-Carrara white marble material, in order to minimize the holes cylindricity (HC) and surface roughness (HR) using six controlled operating factors, namely, the rotation speed ( N), the feed speed ( F), the drill bit diameter (BD), the drill bit height (BH), the number of pecking cycles ( P), and the drilling depth (DD). The experimental design uses a [Formula: see text] fractional factorial plan that is replicated once for cost consideration. The optimization process, that is, minimum cylindricity and roughness tolerances, is carried out using the Gray Relational Analysis (GRA) technique. Numerical modeling of machining parameters is performed using Multi-Layer Perceptron Artificial Neural Network (MLP ANN) and Multiple Regression Model (MR) to predict surface quality. For the sake of completeness these two models were compared in terms of fitness and predictability. The models were assessed statistically using the correlation coefficient. Results showed that either solution predicts a roughness tolerance which is in good agreement with the test data (both R-sq.(adj.) and R-sq.(pred.) >94%). However, the holes cylindricity tolerance response was shown to be superior with MLP-ANN model (R-sq.(adj.) 50.64% and R-sq.(pred.) 48.67%). The GRA analysis shows that minimum cylindricity and roughness are met when N and F are set high, BD and BH low, P high and DD low.
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5

Singaravel, B., Chimmalagi Marulaswami, and Thangiah Selvaraj. "Analysis of the Effect of Process Parameters for Circularity and Cylindricity Errors in Turning Process." Applied Mechanics and Materials 852 (September 2016): 255–59. http://dx.doi.org/10.4028/www.scientific.net/amm.852.255.

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Turning is one of the fundamental machining operations and its process parameters leads to better machining performance. The economic benefit of turning operation is providing components with appropriate dimensional accuracy. In this work, the effects of process parameters on dimensional accuracy (circularity and cylindricity) parameters are analyzed in turning of EN25 steel. The process parameters considered are cutting speed, feed rate and depth of cut in order to minimize circularity and cylindricity. The result revealed that the minimum dimensional accuracy error values such as circularity and cylindricity are obtained in the combination of higher value of cutting speed and lower value of feed rate and depth of cut. This analysis is used to meet the machined work piece within the tolerance limit and improve the quality criteria.
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6

Ariyanto, Ariyanto, and Husman Husman. "Pengukuran Kesilindrisan Hasil Proses Pemotongan Mesin Bubut Untuk Mengetahui Kemampuan Mesin Menghasilkan Suatu Produk." Manutech : Jurnal Teknologi Manufaktur 10, no. 02 (2019): 9–13. http://dx.doi.org/10.33504/manutech.v10i02.61.

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The ability of machine tools to produce a product of good quality is needed by the industrial industry that exists today. Industrial industries that use machine tools are not only industries that produce products in the form of a tool or machine, machine tools are also widely used by industries or institutions that serve machine repair and providers of skills training. The quality of the machine measured using the geometry of the workpiece resulting from the machining process can be in the form of roundness, cylindrecity, tapers and other geometric shapes. The use of machine tools that continue for several years can result in a decrease in the ability of the machine to produce a product. The use of a long horizontal doall lt13 lathe will produce a form of workpiece cylindricity that is not the same as the condition of the the new machine tools, therefore testing activities are carried out by cutting the machine and seeing what the cylindrical value of the specimen is capable of achieving . From the results of the testing that has been carried out on a horizontal lathe as many as eight units, the values of cylindrical difference are different for each machine. The highest value of cylindricity is produced by lathes with machine number 8 and the smallest cylindrical value produced by lathes with machine number 3. The greatest tolerance is achieved in the quality of IT (international tolerance) 11 tolerance and the lowest is achieved in IT tolerance quality 10.
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7

Endrias, Dawit H., and Hsi-Yung Feng. "Minimum-Zone Form Tolerance Evaluation Using Rigid-Body Coordinate Transformation." Journal of Computing and Information Science in Engineering 3, no. 1 (2003): 31–38. http://dx.doi.org/10.1115/1.1565075.

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This paper presents an optimization approach for the accurate evaluation of minimum-zone form tolerances from discrete coordinate measurement data. The approach minimizes the minimum-deviation objective function defined as the difference between the maximum and minimum distances of the measured coordinate data from the reference feature. The objective function is formulated as a function of rigid-body coordinate transformation parameters and involves fewer independent parameters than the existing tolerance evaluation algorithms. As a result, improved convergence efficiency and numerical stability are achieved. A standard direct search algorithm, the downhill simplex search algorithm, is employed to minimize the objective function. The least-squares estimates are employed as good initial conditions to facilitate convergence to the global solutions. A new method, named as the Median Technique, is implemented to well center the circularity measured data and well align the cylindricity measured data in order to provide valid least-squares estimates based on the Limacon approximation. Results from simulation and comparative studies have shown that the proposed method evaluates minimum-zone form tolerances with reliable accuracy.
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8

Zheng, Hong. "Non-Contact Online Detection of Concentricity Error." Applied Mechanics and Materials 733 (February 2015): 611–14. http://dx.doi.org/10.4028/www.scientific.net/amm.733.611.

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This paper researches on the non-contact online detection of concentricity error, which mainly focus on the structural principle of the measurement system and the concentricity error evaluation methods. The paper using the method of projection, converting the three-dimensional model to a two-dimensional model and evaluating coaxially error. And it is validated by the simulation of MATLAB. In theory, the proposed measurement system can measure geometric tolerance, including coaxially error, cylindricity error, circularity error, etc.
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9

Chen, Qianyong, Jinghua Xu, and Shuyou Zhang. "Cylindricity and flatness optimization for mechanical parts in additive manufacturing based on tolerance adaptive slicing." International Journal of Advanced Manufacturing Technology 115, no. 11-12 (2021): 3839–57. http://dx.doi.org/10.1007/s00170-021-07271-4.

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10

Tóth, František, Juraj Rusnák, Milan Kadnár, and Pavol Čavojský. "Effect of Selected Ecological Lubricants on the Wear of Defined Sliding Bearing." Acta Technologica Agriculturae 17, no. 1 (2014): 13–16. http://dx.doi.org/10.2478/ata-2014-0003.

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Abstract The presented contribution deals with the comparison of selected ecological oils of the same viscosity class in terms of wear of the sliding bearing B 60 M4 as part of the matched sliding pair lubricated by ecological lubricant. The wear of the sliding bearing is monitored using the parameters; the change of geometric tolerance cylindricity having the most indicative capability about the size and location of wear. The second parameter is weight loss, and the third parameter is the change of surface roughness at the contact point of friction elements. Results are statistically processed and presented in the form of graphs and tables.
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