Cutter position optimization with tool runout for flank milling of non-developable ruled surfaces

Sen, Kong; Yan, Yecui; Zhang, Liqiang; Feng, Qianqian

doi:10.1007/s00170-021-07270-5

Cited by 3 publications

(2 citation statements)

References 22 publications

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“…The shape-forming object itself is realized in many ways, in contrast to closed cavities of complex shape [51]. For unified models of complex surfaces, there is a small number of possible processing schemes [52][53][54][55], while in impellers and screws there can be a huge variety of such solutions [56][57][58][59][60][61][62][63][64][65], so this study assessed the possibility of minimizing requirements at the stage of control and technological preparation of production . This study proposes a method for creating a smooth flank milling path for a blade cutter and processing the bottom of the impeller with the spherical part of a conical cutter under specified contact and positioning conditions according to data obtained as a result of product image processing.…”

Section: Introductionmentioning

confidence: 99%

A new algorithm for recreating the technological process of high-speed multicoordinate processing based on improving key indicators of image recognition

Pivkin,

Ershov,

Grechishnikov

et al. 2024

Optics, Photonics, and Digital Technologies for Imaging Applications VIII

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Solving the problem of reverse engineering as a key element of the production process and its technological preparation has a key role. This work demonstrates for the first time the possibility of preparing production and collecting key indicators, which allows you to recreate a digital twin of the technological process and display the technological aspects of the design as a result of collecting key indicators. Such indicators include the width of the cut layer, the cutting zone of a conical cutter during multi-axis positioning, obtained based on the results of processing a group of images of processed products. Actual technological indicators of the technological process can be identified and numerically formalized by assessing the shape of the helical surface on a class of parts obtained as a result of multi-coordinate processing, which proves the possibility of applied application of the method in the structure of the production process in real time. As a result, the use of a new algorithm will reduce the likelihood of receiving defective products and recreate the technological process based on processing a set of product images. The work constructs an analytical model for the automated creation of processing paths based on improved B-splines, which can significantly improve smoothness compared to numerical methods for generating paths. The actual technological indicators of the machining process can be identified and numerically formalized dependencies by determining the influence of the helical surface on the precise positioning of the end mill with compensation along each axis during 5-axis machining, obtained as a result of multi-axis machining, which proves the possibility of applied application of the method in the production process in the mode real time.

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Section: Introductionmentioning

confidence: 99%

A new algorithm for recreating the technological process of high-speed multicoordinate processing based on improving key indicators of image recognition

Pivkin,

Ershov,

Grechishnikov

et al. 2024

Optics, Photonics, and Digital Technologies for Imaging Applications VIII

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show abstract

“…In modern mechanical engineering, high-tech efficient processes for the manufacturing of products of complex shapes play an important role [1][2][3][4][5]. One of the most complex processes at the stage of computer adied manufacturing is high-speed multi-axis milling [6][7][8][9].…”

Section: Introductionmentioning

confidence: 99%

A new method and practical recommendations for measuring geometric accuracy, linear and angular measurements of helical surfaces of end mill for HSM

Pivkin,

Yazev,

Ershov

et al. 2024

Optics, Photonics, and Digital Technologies for Imaging Applications VIII

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In precision engineering, helical surfaces on critical parts of equipment have become widespread. The article proposes an new method and practical recommendations for measuring geometric accuracy, linear and angular measurements, and studying the characteristics of helical surfaces and specialized equipment for monitoring the accuracy of helical surfaces. The uniqueness of the approach lies in the formation of key indicators of classification and filtering of a set of specialized measurement techniques based on scanning and digital image processing. A new method is proposed that makes it possible to adjust the measurement of the coordinates of the profile points of the helical surface in the radial section according to the shape of the focal area on the helical surface obtained by a reflected light camera. The work established new indicators of the effectiveness of tool control for high-speed multi-axis milling based on recommendations for the selection of methods and means of monitoring and control at the stage of technological preparation of production in real time. Criteria and indicators have been formed to eliminate errors at any stage in the process of digital control of images of the helical surface of a cutting tool for high-speed machining. The method consists in determining the law of preserving the shape of the profile, its further rotation and comparison with the original control profile by identifying a new relationship between the focal length and the profiling shape. The shape of the profiling curve is described depending on the angle of inclination of the helical flute, diameter, segmentation of the image in the focal zone and the magnitude of the error when measuring the profile in real time relative to the base profile. In this regard, the work justifies the practical adaptation of the search results for key measurement schemes in comparison with other existing methods for helical surfaces with an rake angle of the tangent to the profile in the axial section. The new level of production creates greater demand for product quality efficiency in a unified digital environment. As an advanced solution, the work proposes a method for compensating for errors in the shape of the focus area. This method allows you to compensate for the error in real time without stopping for readjustment. More accurate results allowed for an increase in accuracy up to 10 times compared to existing methods.

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Surface morphology, burr formation, and spindle axial drift in high-speed robotic milling of complex features

Wen,

Wang,

2024

Proceedings of the Institution of Mechanical Engineers, Part B:

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Industrial robots are garnering increased attention in the manufacturing sector, their application in high-precision tasks such as milling is however hindered by inherent limitations, notably low stiffness and instability. This study aims to investigate the influence of cutting parameters within segmented curve trajectories on surface quality during high-speed robotic milling process. The investigation covers surface morphology, the mechanism of burr formation, and the underlying causes of tool axial runout. The findings reveal that as spindle speed increases and feed speed decreases, the surface topography of the machined workpiece gradually improves and the quantity and dimensions of burrs on both sides of the slot have been decreased. Axial runout occurs during robotic milling due to insufficient robot stiffness, leading to vibrations that cannot effectively resist the reaction forces of cutting forces.

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Cutter position optimization with tool runout for flank milling of non-developable ruled surfaces

Cited by 3 publications

References 22 publications

A new algorithm for recreating the technological process of high-speed multicoordinate processing based on improving key indicators of image recognition

A new algorithm for recreating the technological process of high-speed multicoordinate processing based on improving key indicators of image recognition

A new method and practical recommendations for measuring geometric accuracy, linear and angular measurements of helical surfaces of end mill for HSM

Surface morphology, burr formation, and spindle axial drift in high-speed robotic milling of complex features

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