Strongly connected With tools made by TRUMPF a great variety of connectors can be made up right at punching and combination machines.

From sheet metal screw fittings on the front surface to click connections and even hinged joints – TRUMPF offers the right tool for every purpose.

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Strong connections

There are many ways to join sheet metal. Punching tools by TRUMPF keep things together when they’re supposed to stay together.

Sometimes you have to do something very special. Rising expectations in sheet metal processing are triggering demands for wider options in joining techniques. TRUMPF offers many tools for this purpose. With their help, a great variety of connectors can be made up right at punching and combination machines. From sheet metal screw fittings on the front surface to click connections and even hinged joints – TRUMPF offers the right tool for every purpose and every type of sheet metal.

1 Sheet metal threads

Special reshaping is necessary for preparation of multiple sheets for fastening with the help of sheet metal screws. The thread punch tool is used especially when dealing with thin sheet metal. A hole is punched in the first step and in a second step the threads are tapped.

 

2 Threads

Creating threads in a punched hole or extrusion is referred to as tapping. When a tapping tool is used, this reshaping can be done right on the machine. No chips are created, since the material is displaced and not cut during the procedure. Advantage: The displacement process itself lends great strength to the threads.

 

3 Threads at the front face

A connection often found in housings and plant constructions uses sheet metal screws at the outside face of the sheet metal. Such joints can take either sheet metal screws or metric threads.

 

4 Click connection

Click connections join sheet metal panels quite easily and without any additonal tools or aids. Brackets with tiny center bosses are produced in the metal. The mating panel is then slid into the gap at the bracket. “Click and go.”

 

5 Hinge

Hinges are often used where parts are to be moveable after assembly. Hinges can be either shaped completely using two forming tools or, as shown in this example, made up as halves of hinges. In such a hinge leaf, after the area has been cut free, the shaping phase requires only a single stroke with one single tool. Narrow hinge bows also guarantee design flexibility.

 

Any questions?

Contact us: MastersofSheetMetal@trumpf.com

This article was first published in autumn 2011.

 



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