Precision dimensional analysis in CAD design of reliable technologies

Pompeev, K.P.; Timofeev, D. Yu

doi:10.1088/1755-1315/194/2/022028

Cited by 4 publications

(6 citation statements)

References 4 publications

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“…Simultaneously, the effectiveness of computer-aided design (CAD) systems and the quality of decisions depend on built-in principles, methods, rules and algorithms for converting existing technical and technological knowledge [15,37,39,41] into specific technological process for parts manufacturing. Therefore, technologies designed in a CAPP must have the reliability of ensuring a given dimensional accuracy [16] and the requirements for the cross-referenced tolerances (orientation and location of surfaces) [5,6,9,39], which can be characterized by an accuracy margin indicator [5,15,16], defined as the ratio of given error of an accuracy parameter to its error expected during the TP implementation.…”

Section: The Role Of Dimensional Accuracy Analysis Of a Technological Process In Accuracy Assurance Of Parts Manufacturingmentioning

confidence: 99%

“…Dimensional accuracy analysis (DAA) of TP allows designing technologies for manufacturing parts that are reliable in terms of accuracy parameters [5,16].…”

Section: The Role Of Dimensional Accuracy Analysis Of a Technological Process In Accuracy Assurance Of Parts Manufacturingmentioning

confidence: 99%

“…The technical quality of products is established and ensured at product life-cycle (PLC) stages like marketing research, product design, technology development and product manufacturing. Moreover, the technological support of parts quality indicators already begins at the design stage [2][3][4][5][6].…”

Section: Introductionmentioning

confidence: 99%

“…Another equally important aspect of product (parts) manufacturing quality is to ensure dimensional accuracy [15][16][17] and requirements for surfaces location and orientation [5,6].…”

Section: Introductionmentioning

confidence: 99%

“…Accordingly, the role and importance of a 3D model of an operational workpiece in the manufacturing process planning and organization is increasing, which is possible if these processes are automated. It can be concluded that during the technological process planning, the entire set of interconnected operational workpieces (their 3D models) should be developed in an automated (automatic) mode [35,36], taking into account the assurance of the part accuracy parameters without defects [4][5][6]37]. To accomplish the latter, it is necessary to minimize or eliminate the influence of the subjective factor by creating knowledge, rules and techniques bases [4-6, 16, 38-40].…”

Section: Introductionmentioning

confidence: 99%

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Interactive Synthesis of Technological Dimensional Schemes

Pompeev

Pleshkov

Borbotko

2020

Advances in Mechanical Engineering

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The paper considers the problem of accuracy assurance during part manufacturing. Ensuring the required accuracy is one of the aspects of achieving the level of quality, implied during product design. It should start even before the actual manufacturing process, during process planning, which is one of the main stages in product life-cycle. In digital manufacturing, while using automatic and semi-automatic equipment, including CNC machines, a multi-operational technological process must be reliable in the context of ensuring its accuracy parameters, i.e. must guarantee in advance the compliance with requirements of dimensional accuracy and surfaces location and orientation which is specified in a part drawing. This can be achieved by carrying out a dimensional accuracy analysis of a technological process at its design stage, which will reduce time and material costs when introduced in production, due to a significant decrease in the probability of obtaining defects, related to precision parameters. When conducting a dimensional accuracy analysis of a technological process, it is necessary to preliminarily create diagrams of linear dimensions and circular runouts. Creating these diagrams and performing the required calculations manually is a rather time-consuming process. This fact as well as the lack of necessary software packages (even though there exist several programs for calculating linear and diametric dimensions and machining allowances, developed by authors of the present paper) today at industrial enterprises engineers do not conduct dimensional accuracy analysis when designing multi-operational manufacturing processes and rely solely on their own experience and the experience of adjusters and CNC machine operators. And this, in turn, holds back the process of manufacturing process automation, which is unacceptable during the transition to digital manufacturing. As a solution to this problem, it is proposed to introduce into the practice of technological process design developed calculation programs and a software tool in development, based on methods of interactive synthesis of linear dimensional and runout diagrams, described in the paper.

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Section: The Role Of Dimensional Accuracy Analysis Of a Technological Process In Accuracy Assurance Of Parts Manufacturingmentioning

confidence: 99%

“…Dimensional accuracy analysis (DAA) of TP allows designing technologies for manufacturing parts that are reliable in terms of accuracy parameters [5,16].…”

Section: The Role Of Dimensional Accuracy Analysis Of a Technological Process In Accuracy Assurance Of Parts Manufacturingmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…Another equally important aspect of product (parts) manufacturing quality is to ensure dimensional accuracy [15][16][17] and requirements for surfaces location and orientation [5,6].…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Interactive Synthesis of Technological Dimensional Schemes

Pompeev

Pleshkov

Borbotko

2020

Advances in Mechanical Engineering

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Modeling of the molten glass formation zone as a viscoelastic medium

Alekseeva

Maksarov

2021

J. Phys.: Conf. Ser.

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The article studies mathematical models that describe the movement of a viscoelastic medium. The equations of continuity, balance of forces and physical equations describing the glass melt have been created. When studying the behavior of molten glass in the formation zone, it is considered as a viscous liquid, as a viscoelastic liquid (Maxwell’s model) and as an elastic-viscous body. A system with boundary conditions is a problem of movement of the viscoelastic medium with a lower movable boundary.

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Method of precision dimensional analysis in modelling of technological processes for shafts manufacturing

Khalimonenko

Pompeev

Timofeev

2021

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

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In this paper, we propose a method for conducting a dimensional - precision analysis of technological processes of making shafts using bench centers and consider the features of its application. A method for drawing up rotation error diagrams for processing shafts installed in the centers of lathes has developed, taking into account the principle of constancy of bases and the presence of an error in pre-centering the initial shaft workpiece.

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Precision dimensional analysis in CAD design of reliable technologies

Cited by 4 publications

References 4 publications

Interactive Synthesis of Technological Dimensional Schemes

Interactive Synthesis of Technological Dimensional Schemes

Modeling of the molten glass formation zone as a viscoelastic medium

Method of precision dimensional analysis in modelling of technological processes for shafts manufacturing

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