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Which of the following notches is used when making a job with a 90° bend?

Which of the following notches is used when making a job with a 90° bend? Correct Answer V notch 

Explanation:

Notches are the spaces provided for joining the edges when sheet metals are cut from the layout.

It helps to prevent surplus material from overlapping and causing a bulge at the seam and edges.

Types of notches:

  • Straight notch or slit: Straight cuts made in the edge of the sheet where it is to be bent.
  • Square notch: It is made when forming a rectangular or square box.
  • Slant notch: This notch is cut at an angle of 45° to the corner of the sheet. It is used when a single hem meets at a right angle.
  • V notch: In this notch, both the sides are cut at a 45° angle to the edge of the sheet. The sides of the notch meet at 90°. This notch is used when making a job with a 90° bend and an inside flange.
  • Wire notch: The angle of this notch is usually 30° and the distance from which the notch is started is 3 times the diameter of the wire. It is used on a work that has wired edges.

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