Extruded Tapped Hole Sheet Metal

Creating an extruded hole using a punching process requires extreme pressure force.

Extruded tapped hole sheet metal.

A pre punched hole is required as a one hit pierce and extrude gives poor hole quality and has limited adjustment on the machine. Extrusions our commonly used to accept sheet metal screws or permit tapping into a deeper distance than just the material thickness. Avoid large sheet metal parts with small bent flanges. Avoid large sheet metal parts with small bent flanges.

The following illustration shows the extruded hole geometry. Design for manufacturability sheet metal guidelines bends for the ease of manufacturing multiple bends on the same plane should occur in the same direction. 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. They are used in thin materials.

Performance in extruded holes is slightly higher than in drilled holes. Extruded holes very close to the part edge can lead to sheet metal deformation or tearing. First prevailing off torque is an indication of locking torque and resistance to vibrational loosening and is favorably high for extrude tite screws in thin sheet metal. Extruded tapped hole u nuts push the workpiece material downward to create a tapped hole.

Therefore the minimum distance between the extruded hole to edge if maintained. Extruded hole to part edge b 3t d 2. Prepunched or extruded holes on the sheet are threaded through a coordinated rotation of the turret press autoindex station and ram stroke. The tooling produces a full range of threaded holes in.