Method of Calculating Intermediate Diametral Sizes and Allowances for Designing Technology of Manufacture of Details

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

doi:10.2991/aime-17.2017.51

Cited by 4 publications

(5 citation statements)

References 4 publications

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“…Currently, programs for automated calculation of linear and diametric dimensions [40,42] based on techniques described in [4,16,40] have been developed, however their introduction in CAPP in practice is constrained by the lack of programs for synthesis of schemes of linear dimensional and requirements for mutual arrangement (RMA).…”

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

confidence: 99%

“…The calculation of intermediate diametrical dimensions of outer and inner surfaces of revolution is carried out in the developed program according to the method described in [4,16], which was improved to take into account the presence of finishing operations in the TP for manufacturing bodies of revolution [40]. In accordance with it, the calculation of intermediate diametrical dimensions is carried out based on determining minimum estimated allowances, which consist of a uniform and a non-uniform part.…”

Section: Interactive Synthesis Of Runouts Diagramsmentioning

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%

“…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%

Section: Interactive Synthesis Of Runouts Diagramsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Interactive Synthesis of Technological Dimensional Schemes

Pompeev

Pleshkov

Borbotko

2020

Advances in Mechanical Engineering

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“…This method is inefficient. And, if the machining allowance is not well controlled, it can easily lead to component dimensions that are out of tolerance [14]. To address this problem, we try to introduce diamond band saw technology into RMC component processing.…”

Section: Introductionmentioning

confidence: 99%

Experimental Investigation on Diamond Band Saw Processing of Resin Mineral Composites

Sun,

Zhang,

et al. 2024

Materials

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Resin mineral composite (RMC) is a new material with several times the damping properties of gray cast iron and great corrosion resistance. Due to its overall brittleness, sawing with a diamond band saw would be a suitable method. In this research, sawing experiments are carried out to study the sawing force characteristics of the material and its surface morphology during the processing. The results show that the feed force level is in the range of 3.5~5.5 N and the tangential force level is relatively low. The distribution of resin mineral components does not have a significant impact on the average sawing force but increases the fluctuation of the lateral force signal. The maximum fluctuation volume is 94.86% higher than other areas. Uneven lateral force, generated when diamond particles pass through the resin–mineral interface, is one of the causes of fluctuations. The machined surface of RMC has uniform strip scratches and a small number of pits. Maintaining a constant ratio of sawing speed to feed speed can result in approximately the same machined surface. A step structure with a height of about 10 μm appears at the interface of resin minerals. As a processing defect, it may affect the performance of RMC components in some aspects, which need a further precision machining processing.

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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 Calculating Intermediate Diametral Sizes and Allowances for Designing Technology of Manufacture of Details

Cited by 4 publications

References 4 publications

Interactive Synthesis of Technological Dimensional Schemes

Interactive Synthesis of Technological Dimensional Schemes

Experimental Investigation on Diamond Band Saw Processing of Resin Mineral Composites

Modeling of the molten glass formation zone as a viscoelastic medium

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