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1
Content available Neural network application for time standards setting in assembly and disassembly
Kutschenreiter-Praszkiewicz Izabela
Journal of Machine Engineering
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2020
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Vol. 20, No. 3
106--116
EN
Time standards belong to the key indicators of production process effectiveness. The paper discusses time standard setting in the production process. One of the important stages of the production process is assembly, which is a crucial stage in case of manufacturing customized products. The aim of the article is to show the methods of time standard setting which facilitate assembly planning. Specific goals of the article are focused on finding common attributes useful in assembly tasks characteristics and changeover, as well as finding value intervals helpful in assembly description. Shortening the product lifecycle, new product development and product customization bring about the development of a modular reconfigurable assembly line. The development of flexible assembly lines requires standards related to typical assembly tasks and tools. Reconfiguration and balancing assembly lines require a knowledge base related to time standards. This article presents examples of typical tasks, tools and time standards for planning product assembly and changeover which use the assembly and disassembly processes.
2
Content available Theoretical study of dependence of screwing of drilling-pipe connectoron thread-process cutting tool profile
Panchuk Vitalii, Onysko Oleh, Lukan Tetiana, Medvid Iuliia
Mining – Informatics, Automation and Electrical Engineering
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2019
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R. 57, nr 1
7--17
EN
Screwing is one of the main parameters of the quality of a drill string tapered thread tooljoint. It indicates the number of screwing operations that can be applied to this tool jointduring drilling. Tool joints that have undergone rejection (determined by a specific criterion – the distance between the end faces of the pin and the box before they are startthe screwing) are not permitted to screw. The value of this criterion is proportional to theworking height of the threadprofile, which decreases during operation. In this article, it isoffered to increase the initial value of the criterion of rejection due to the increase of thework height of the thread profile. This can be done without violating the standard butwith the use of a modernized profile of the tool for thread turning. This profile makes itpossible to increase the crest diameter of the thread and at the same time ensure sufficient tool life. Due to its usage, the resource of the tool joint can increase by 9–14.5%,while the cutter’s tool life and cost remain unchanged.
3
Content available remote Czynniki techniczne warunkujące powodzenie wdrożeń stanowisk mechanizacji i automatyzacji operacji wkręcania.
Stamirowski J., Skowron W.
Technologia i Automatyzacja Montażu
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1999
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nr 3
42-46
4
Content available remote Zautomatyzowane urządzenie do zakręcania i odkręcania śrub dwustronnych w korpusie pompy cyrkulacyjnej.
Poliwcew W., Taranienko W., Poliwcew A.
Technologia i Automatyzacja Montażu
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1998
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nr 2
35-38
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