Which bending process is used to bend sheet metal along curved lines?

What bending process is specifically used to bend sheet metal along curved lines among the options of edge bending, V-bending, drawing, and ironing?

Drawing is the bending process used to bend sheet metal along curved lines.

Explanation:

Drawing: Drawing is the bending process commonly used to bend sheet metal along curved lines. In drawing, a flat sheet of metal is pulled through a die cavity using a punch. As the sheet metal passes through the die, it is stretched and shaped to form the desired curve or contour.

Edge Bending: Edge bending is a process where sheet metal is bent along its edge using a press brake to create a straight angle or bend. It is not typically used to bend sheet metal along curved lines.

V-Bending: V-bending involves bending sheet metal over a V-shaped die to create a desired angle. This process is suitable for creating sharp angles but not for bending along curved lines.

Ironing: Ironing is a metal forming process used to reduce the thickness of a sheet metal component while maintaining its surface area. It is not specifically designed for bending sheet metal along curved lines.

Among the options given, the drawing process is specifically used for bending sheet metal along curved lines. It allows for the creation of complex curved shapes and contours, making it the preferred bending process when curved lines are required in sheet metal fabrication.
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