Extruded Tapped Hole Sheet Metal

Tapped holes may need to be re tapped after plating to ensure accuracy.

Extruded tapped hole sheet metal.

Creating an extruded hole using a punching process requires extreme pressure force. A pre punched hole is required as a one hit pierce and extrude gives poor hole quality and has limited adjustment on the machine. The tooling produces a full range of threaded holes in. They are used in thin materials.

Therefore the minimum distance between the extruded hole to edge if maintained. The following illustration shows the extruded hole geometry. Avoid large sheet metal parts with small bent flanges. Avoid large sheet metal parts with small bent flanges.

In low carbon steel sheet metal the minimum radius of a bend should be one half the material thickness or 0 80 mm. The minimum distance from an extruded hole to a bend is three times the material thickness plus the bend radius. Extrusions our commonly used to accept sheet metal screws or permit tapping into a deeper distance than just the material thickness. Extruded holes very close to the part edge can lead to sheet metal deformation or tearing.

Tap fix screws for extruded holes in light gauge steel this article provides tap fix hole size recommendations for metals using light gauge punched extruded materials. Performance in extruded holes is slightly higher than in drilled holes. Extruded hole to part edge b 3t d 2. Extruded tapped hole u nuts push the workpiece material downward to create a tapped hole.