Nizwa College of Technology

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Presentation transcript:

Nizwa College of Technology الكلية التقنية بنزوى Nizwa College of Technology Mechanical Engineering Department Marking out Done by: Issa AL-Tobi Issa al-tobi

Marking Out It means scribing of lines on a metal surface to indicate the profile or outline of the finished component. Issa al-tobi

The need for marking out It is usually advisable to mark out a component before commencing to work on it. So that the finished component will have correct size. It is useful to give allowances for casting & forming components Issa al-tobi

Tools Location tools (surface plate) Scribing equipment (scriber) General purpose tools (straight edge) Issa al-tobi

Protractor Issa al-tobi

Scribing block & combination square Issa al-tobi

Vernier height gauge Issa al-tobi

Engineers Square Issa al-tobi

Marking(scribing) Tools Issa al-tobi

Use of the scriber Issa al-tobi

How to draw right angle line? Issa al-tobi

Continued Issa al-tobi

Continued Issa al-tobi

How to set divider Issa al-tobi

Continued Issa al-tobi

Continued Issa al-tobi

How to mark on cylindrical components? Issa al-tobi

Theoretical exercise Issa al-tobi

Continued Issa al-tobi

Continued Issa al-tobi

Practical exercise (side 1) Issa al-tobi

Continued (side 2) Issa al-tobi

THE END