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Tishreen University Journal for Research and Scientific Studies - Engineering Sciences Series Vol. (30) No. (2) 2008

2008

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3 Tishreen University Journal for Research and Scientific Studies - Engineering Sciences Series Vol. (30) No. (2) 2008

Reduction of Modulus Factor in Platter Cutting Mechanisms Operating by friction

and used for Cutting Rail-rods

Dr. Nawfal Al-Ahmad

Dr. Nazih yousef**

(Received 4 / 2 / 2008. Accepted 25 / 5 / 2008)

� ABSTRACT �

This paper aims to invent a new method for cutting rail-rods so that the friction will

be reduced. The cutting process of rail-rods is very important especially in case of welded rails. So the occurrence of faultts and defects in railways must be removed to prevent accidents (train derailment) or fretting of model wheels and vibration causing inconvenience on passenger train. This study contains the basics of theoretical and mathematical equation that show the relationship between temperature and cutting speed. Also, it deals with linear expansion (also linear forces) and expansion module for the metal rod used on railways and the time of cutting process by using an additional vibrating movement in the cutting process. Many experiments have been carried out and the results obtained have been compared with the theoretical ones

Keywords: Friction, cutting machines, Cutting modulus

* Professor, Faculty of Technical Engineering, Tishreen University, Lattakia-Syria.

**Assistant Professor, Department of Power engineering, Faculty of Mechanical & Electrical Engineering, Al-baath University, Homs, Syria.


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4-PAUL DE GRAMOl E. ,J :.TEMPLE BLOCK. A.KOHSHER R.: Materials and processes in manufacturing.Prentice-hall international,Inc USA 2003

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7-ДAеч Г.Руководство и практическом применению преобразования Лапласа. Издатнльство Наука Мсква1971.


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