Commissioning of a 150 ton tube drawing mill

The variable thickness tube drawing is a new modification in the tube drawing methods which enables production of axially variable thickness tubes faster and easier in comparison with other similar methods like radial forging or indentation forging. The production of this type of tubes can be used in optimum design of mechanical parts which do not necessarily need constant thickness along the axis of tube and this method can strikingly reduce the overall weight of parts and mechanical assemblies like cars. In this paper, the variable thickness tube drawing were parameterized in a MATLAB code and optimized with the Ls-Opt software as an optimization engine and Ls-Dyna as a FE solver. The final objective of this optimization study is to determine the minimum thickness which can be produced in one step by this method with various tube dimensions (tube thickness and outer diameter). For verification of results, some experiments were performed in the tube drawing machine which was fabricated by this research group and acceptable correspondence was observed between numerical and experimental results.

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Tube drawing analysis using upper bound and energy methods and validation by Cockcroft-Latham failure criteria

Journal of the Brazilian Society of Mechanical Sciences and Engineering ◽

10.1007/s40430-021-03302-z ◽

2021 ◽

Vol 44 (1) ◽

Author(s):

Vahid Pouyafar ◽

Hadi Bolandi ◽

Ramin Meshkabadi

Keyword(s):

Upper Bound ◽

Failure Criteria ◽

Energy Methods ◽

Tube Drawing

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1012 Effect of lubricants on tube drawing with ultrasonic vibration

The Proceedings of Conference of Kansai Branch ◽

10.1299/jsmekansai.2000.75._10-33_ ◽

2000 ◽

Vol 2000.75 (0) ◽

pp. _10-33_-_10-34_

Author(s):

Hiromu TAKAMURA ◽

Akikazu NAKAGIRI ◽

Takaaki YAMANO ◽

Masao INOUE ◽

Ei SHIMABAYSHI

Keyword(s):

Ultrasonic Vibration ◽

Tube Drawing

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Evaluation of the effectiveness of innovations in the work of drawing mills

10.36652/0042-4633-2021-6-82-85 ◽

2021 ◽

pp. 82-85

Author(s):

Keyword(s):

Drawing Speed ◽

Increase In Productivity ◽

New Criterion ◽

Drawing Mill

The possibility of increasing the productivity of drawing mills is being considered. A new criterion for evaluating the increase in productivity is proposed, taking more fully into account the intensification of the process, which can be recommended when choosing options for the manufacture of pipes. Keywords: drawing mill, effectiveness, productivity, drawing, drawing speed. [email protected]

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Improving the control system of the wire laying unit of the thin drawing mill

Informacionno-technologicheskij vestnik ◽

10.21499/2409-1650-2020-23-1-71-75 ◽

2020 ◽

pp. 71-75

Author(s):

А.В. Белый

Keyword(s):

Control System ◽

Functional Diagram ◽

Protection System ◽

Electric Drives ◽

Frequency Converters ◽

Mode Of Operation ◽

Reversal Mechanism ◽

The Wire ◽

Winding Wire ◽

Drawing Mill

В статье приводится описание разработки усовершенствованной системы регулирования аппарата укладки проволоки на стане тонкого волочения. Модернизация системы регулирования направлена на устранение недопустимого режима работы стана, когда намотка проволоки на катушку осуществляется без ее равномерной укладки, вследствие выхода из строя механизма реверсирования укладчика. Разработана функциональная схема системы защиты от остановки укладчика в процессе намотки проволоки на катушку. Реализация данной схемы выполнена на базе существующих систем регулирования преобразователей частоты в электроприводах аппаратов намотки и укладки. Приведено описание работы защиты от остановки укладчика. The article describes the development of an improved system for regulating the apparatus for laying wire on a thin drawing mill. The modernization of the control system is aimed at eliminating the unacceptable mode of operation of the mill, when the wire is wound on a coil without evenly stacking it, due to failure of the stacker reversal mechanism. A functional diagram of the stacker stop protection system was developed during the process of winding wire onto a spool. The implementation of this scheme is based on existing systems for regulating frequency converters in electric drives of winding and stacking machines. The description of the operation of the protection against stopping the stacker is given.

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