Siberian State Industrial University (Russia, Novokuznetsk):

A. R. Fastykovsky, Dr. Eng., Associate Prof., Head of the EVRAZ ZSMK Dept. of Metal Processing and Metal Science, e-mail: fastikovsky@mail.ru
A. I. Musatova, Lecturer of the Institute of Additional Education, e-mail: musatova-ai@yandex.ru
S. M. Kulakov, Dr. Eng., Prof., Dept. of Automation and Information Systems, e-mail: kulakov-ais@mail.ru

Tomsk Polytechnic University (Tomsk, Russia):
N. V. Martyushev, Cand. Eng., Associate Prof., Dept. of Metal Science, e-mail: martjushev@tpu.ru

Moscow State University of Civil Engineering (Moscow, Russia):
A. I. Karlina, Cand. Eng., Researcher, e-mail: karlinat@mail.ru

For rational planning and forecasting of production time, a clear accounting and regulation of the duration of production cycles is necessary. The duration of manufacturing batches of products is the basis for the construction of operational schedules. Without the duration of cycles, it is impossible to set calendar dates for the launch of semi-finished products at a particular stage of processing, as well as to determine the timing of product release, the timing of the passage of a batch of products through individual production areas. The problem of multivariate estimation of the duration of manufacturing a specific batch of rolled products is solved, which consists in substantiating, for each production situation, the optimal duration of operations required for the release of this batch. Models of production processes carried out in the departments of a medium-sized shop are built, the composition, duration and conditions for performing technological, natural, labor, control and transport operations are determined; the types and quantity of equipment used in departments are indicated; lists the types of material flow units (blank, pack, package); the nature and type of movement of semi-finished products (products) in the operations of the production process are established; the ways of moving products from the previous operation to the next one (piece, batch, batch), as well as the number of packages and batches to be moved are specified; the types of production lines used (continuous, semi-continuous, discrete) are taken into account. All of the above is reflected in the presented enlarged algorithm, the approbation of which was carried out by modeling using field data of an operating enterprise.

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