Development of models and research into tooling for machining centers

Krol, Oleg; Sokolov, Volodymyr

doi:10.15587/1729-4061.2018.131778

Cited by 33 publications

(12 citation statements)

References 9 publications

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“…The design of flexible fixtures is a complicated and time-consuming process that requires considering many parameters. Kotliar et al (2019b) focused on production conditions; Krol and Sokolov (2018) considered technological capabilities of metal-cutting Engineering Management in Production and Services equipment; Li, Chen and Shi (2016), Kostyuk, Nechyporuk and Kostyk (2019), and Kostyuk (2019) examined parameters of cutting tools; Bakker et al (2013) and Shaik, Rao and Rao (2015) studied design and technological features of parts; Basova et al (2018) and Sokolov, Krol and Baturin (2019) investigated dynamic characteristics; Denysenko et al (2019) and Dynnyk et al (2020) evaluated quality indicators; and Yarovyi and Yarova (2020) appraised energy-efficient criteria. Meanwhile, Qin et al (2010) presented a literature review on existing fixture systems, their functionality, design features, and sufficient use.…”

Section: Literature Reviewmentioning

confidence: 99%

Ensuring economic efficiency of flexible fixtures in multiproduct manufacturing

Ivanov

Liaposhchenko

Denysenko

et al. 2021

Engineering Management in Production and Services

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The first-priority directions for modern engineering, especially for multiproduct manufacturing, include the intensification of manufacturing processes, increasing the efficiency of technological equipment, and reducing the time required to implement technological solutions. Fixture design is a complicated and time-consuming process that requires considering many parameters of the closed-loop technological system “machine tool — fixture — cutting tool — workpiece”. One machined part can have several fixture layouts corresponding to all specified parameters; however, their effectiveness differs depending on production conditions. Search for an optimal fixture for specified production conditions is an essential stage of production planning. It has been proved that the efficiency of a manufacturing process should be assessed using single economic indicator — the cost of machining, which considers the costs of time, the total costs for process realisation, and a batch of parts. The paper aims to substantiate the efficiency of manufacturing processes in machining complex parts using flexible fixtures by developing a mathematical model that considers the cost of time, the cost of implementing the manufacturing process, and the batch value of parts production. This approach estimates the efficiency of manufacturing processes for machining complex parts and choosing the flexible fixture layout that corresponds to specific production conditions. It was proved that flexible fixtures could be effectively used for machining small batches of parts with frequent readjustments to new workpieces and short-term machining. A tendency has been established that the higher number of nomenclature of parts contributes to expanding the scope of the effective use of flexible fixtures.

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Section: Literature Reviewmentioning

confidence: 99%

Ensuring economic efficiency of flexible fixtures in multiproduct manufacturing

Ivanov

Liaposhchenko

Denysenko

et al. 2021

Engineering Management in Production and Services

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show abstract

“…Thus, in [32], a two-criterion (time per piece t pp and unit cost C u ) three-parameter problem (speed V, feed f and depth of cut d c ) was solved with the help of normalized linear convolution with weights. Behavior analysis of compromise criterion ensures the achievement of optimal values of V and f as a result of determining either the point of tangency of the objective function with one of the constraints, or the point of intersection of the constraints [33][34][35]. This uses a re-selection procedure with initial feed values in the right-hand area of technical constraints.…”

Section: Problems Of Optimization Of Design and Technological Solutionsmentioning

confidence: 99%

Rational Choice of Machine Tools for Designers

Sokolov¹,

Krol²,

Sokolov³

2019

Self Cite

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The monograph deals with the problems of the methodology and toolkit for a rational choice of design solutions, based on the idea of parallel design. The toolkit for embedding the forecast and optimization procedures into the contour process selection is given. A set of postulates that underlie the rationality of the design decisions taken when creating machine tools is formulated. A method of regulating the composition and specificity of information for the effective evaluation of possible alternatives is proposed. The algorithm of interaction of design procedures and operators with criteria that are included in the system of preferences is shown. The application features of the patent and expert search procedures at the initial stages of creating the cutting machine design are considered. A method for constructing a target tree and the corresponding procedures for systematic consideration of development and improvement trends are proposed. For leading designers, experts in the field of computer-aided design of machines and tools, scientists, lecturers, graduate students and students.

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“…As is known [51], the normal load on the teeth is unevenly distributed and reaches a maximum at the base of the teeth (Fig. 2 Using the built-in finite element [52][53][54][55] grid generator, the procedure of its construction with the subsequent complex calculation is carried out (Fig. 2.33).…”

Section: Toothed Belt Transmissionmentioning

confidence: 99%

Parametric Modeling of Machine Tools for Designers

Sokolov¹,

Krol²,

Sokolov³

2018

Self Cite

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The monograph deals with the problems of machine tools computer-aided design based on the methods and means of parameterization for the main components of metalcutting machune and equipment in the CAD "APM WinMachine" environment. The models and algorithms of parametric modeling for the configurations of machine tools lathe and milling groups of by criteria of maximum rigidity and minimum reduced load on the front spindle support are developed. The express procedure for generating the transverse layout of the main drive in the multivariate design mode has been implemented. The parametric models of the gear boxes basic elements -V-belt-, poly-Vbelt and toothed belt transmission pulleys, as well as the stepped shafts of the machine drives are built. Analytical forms for the construction of the main functional elements of the projected machine parts are proposed. Parametric models of instrumental equipment for machine tool systems on the examples of shaped lathe cutters and gear milling cutters are developed. The models of involute and teeth shaped profiles for disk and worm gearcutting mills in a parametric form are generated. The efficiency of using the parameterization apparatus in multivariate design problems is substantiated. Particular attention is paid to the use of the APM WinMachine parametrizator in the tasks of production design preparation.For leading designers, experts in the field of computer-aided design of machines and tools, scientists, lecturers, graduate students and students.

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Development of models and research into tooling for machining centers

Cited by 33 publications

References 9 publications

Ensuring economic efficiency of flexible fixtures in multiproduct manufacturing

Ensuring economic efficiency of flexible fixtures in multiproduct manufacturing

Rational Choice of Machine Tools for Designers

Parametric Modeling of Machine Tools for Designers

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