Method for Calculating of Cross-Sectional Dimensions of Sheet Blank at Intermediate Stages of Roller Forming Process

Povorov, S V; Semenov, I E

doi:10.1109/rusautocon.2018.8501838

Cited by 3 publications

(3 citation statements)

References 7 publications

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“…If a parameter is specified for this sequence, any straight line can be represented by a single point in the parameter space and represented in the normal parameter space [15]. The definition is given in Equation (1).…”

Section: Edge Detection With Hough Transformmentioning

confidence: 99%

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Sectional Dimensions Identification of Metal Profile by Image Processing

Orak,

Şeker

2023

JCC

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In steel plants, estimation of the production system characteristic is highly critical to adjust the system parameters for best efficiency. Although the system parameters may be tuned very well, due to the machine and human factors involved in the production line some deficiencies may occur in product. It is important to detect such problems as early as possible. Surface defects and dimensional deviations are the most important quality problems. In this study, it is aimed to develop an approach to measure the dimensions of metal profiles by obtaining images of them. This will be of use in detecting the deviations in dimensions. A platform was introduced to simulate the real-time environment and images were taken from the metal profile using 4 laser light sources. The shape of the material is generated by combining the images taken from different cameras. Real dimensions were obtained by using image processing and mathematical conversion operations on the images. The results obtained with small deviations from the real values showed that this method can be applied in a real-time production line.

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Section: Edge Detection With Hough Transformmentioning

confidence: 99%

“…Povorov and Semenov tried to build a mathematical model for predicting material shape in profile rolling. [1] Analyzing the effect of the profile of the hot-rolled sheet on cold-rolling, Ma et al developed the ANN model [2].…”

Section: Introductionmentioning

confidence: 99%

Sectional Dimensions Identification of Metal Profile by Image Processing

Orak,

Şeker

2023

JCC

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“…The bending radius for the 180-degree bending was predicted; the predictions were in good agreement with the experiment results. Povorov et al [2] proposed a mathematic equation for the neutral line calculation for U-shaped roll forming process. The increase or the decrease amounts of the line segments at the neighboring regions of the arc segment were iterated to compensate the deformation of the bend region.…”

Section: Introductionmentioning

confidence: 99%

Modelling of Neutral Line Parameter for Sheet Metal Stamping and Roll Forming Processes

Wang

Chen

et al. 2020

SSP

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The blank development of sheet metal for the stamping and the roll forming processes is crucial for the dimensional accuracy of the products. The neutral line parameter is the indicator to present the thinning phenomenon at the bending corners of the products. The basic assumption of the neutral line position is the surface that the sheet metal remains un-deformed after the stamping or the roll forming process. The conventional determination method of the neutral line position is based on the zero strain position through the thickness direction of the blank. In this paper, a different neutral line factor calculation method based on the mean profile length was proposed to find the neutral line factor, which is directly related to the profile length and more precise for the bland development calculation. A cross sectional profile was obtained after the forming process and the mean profile length of the upper and the lower surface was obtained. The ratios of the bending radius to the sheet thickness were calculated using the FEM simulation. A neutral line equation was proposed considering the material mechanical properties and the bending tool parameters. The initial blank width was compared to the forming result of the CAE simulation to validate the neutral line model. This model is able to take into consideration of the thinning effect at the entire bending zone of the metal forming without the assumption of the uniform thinning and is more accuracy for the blank width calculation.

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Simulation of thin-sheet metal blanking and punching by elastic mediums

Semenov

Povorov

2019

IOP Conf. Ser.: Mater. Sci. Eng.

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The paper describes the processes of thin-sheet workpiece blanking/punching using an elastic tool in an open and closed container. Finite element models are constructed, which describe the process of separation of the workpiece by an elastic workplace tool. A comparative analysis of the geometrical dimensions of the workpieces obtained as a result of theoretical and experimental studies was carried out.

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Method for Calculating of Cross-Sectional Dimensions of Sheet Blank at Intermediate Stages of Roller Forming Process

Cited by 3 publications

References 7 publications

Sectional Dimensions Identification of Metal Profile by Image Processing

Sectional Dimensions Identification of Metal Profile by Image Processing

Modelling of Neutral Line Parameter for Sheet Metal Stamping and Roll Forming Processes

Simulation of thin-sheet metal blanking and punching by elastic mediums

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