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Sheet Metal Work

Sheet metal work in a workshop deals with the working of metal sheets. The various operations performed in sheet metal shop are as follows:

1. Marking. It consists of scratching of lines on the surface of a sheet metal. It is also called scribing operation.

2. Slitting. The operation of cutting a sheet of metal in a straight line along the length is called slitting. 

3. Notching. The removal of metal to the desired shape from the edge of a plate is called notching.

4. Punching. The operation of cutting a cylindrical hole in a sheet of metal by the punch and the die is called punching.

5. Piercing. The operation of cutting a hole (other than cylindrical) in the sheet of metal by the punch and the die is called piercing.

6. Perforating. The operation of cutting a number of holes evenly spaced in a regular pattern on a sheet of metal is called perforating.

7. Blanking. The operation of cutting of flat sheet to the desired shape is called blanking.

8. Forming. The operation of bending a sheet of metal along a curved axis is known as forming.

9. Lancing. The operation of cutting a sheet of metal through part of its length and then bending the cut portion is called lancing.

10. Drawing. The operation of producing cup shaped parts from flat sheet metal blanks by bending and plastic flow of metal is called drawing.

11. Embossing. The operation of giving impressions of figures, letters or designs on sheet metal parts is known as embossing.

12. Planishing. The operation of straightening a curved sheet metal is known as planishing.

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