Do the components to be joined need to be previously treated?

No, the components do not need to be additionally treated for punching or welding.

Can two layers of aluminium be punched to form an assembly and then welded onto steel?

Yes, several aluminium layers can be punched at once.

Can an element also be inserted into steel to realise steel/steel or steel-aluminium/steel joints?

Since the element is additionally hardened, it can be installed in steel layers, provided that thickness and strength are suitable.

Is punching suited for brittle cast materials, for components that are not heat-treated?

Yes; the top layer is not formed during a mere punching process. Even near the flange edge, no material damage is initiated.

How about contact corrosion and joint tightness?

If there is possible contact with corrosive media, common measures for corrosion protection and sealing must be taken.

What is the joint strength compared with other multi-material joining methods?

Depending on the joining task, in most cases, the maximum shape change is realised in the weaker joining part. With a comparable element size, the joint characteristic values are the same or even higher.

How should the element be installed?

Depending on the required installations per year, we recommend to use a portable hand-held setting tool (can be combined with RIVSET® semi-tubular rivets) or a stationary automatic system.

Technical information

Portable C WELTAC®

We provide you all relevant technical information and assistance to our hand tool for WELTAC® resistance element welding.

Download

Operating instruction manual

Are you looking for an operating instruction manual for your hand tool? Please find your free download here.

FAQ

Do you need further support?

Welcome to our FAQ section. Here you can find answers to the most common situations you may face in practice.

No, the components do not need to be additionally treated for punching or welding.
Yes, several aluminium layers can be punched at once.
Since the element is additionally hardened, it can be installed in steel layers, provided that thickness and strength are suitable.
Yes; the top layer is not formed during a mere punching process. Even near the flange edge, no material damage is initiated.
If there is possible contact with corrosive media, common measures for corrosion protection and sealing must be taken.
Depending on the joining task, in most cases, the maximum shape change is realised in the weaker joining part. With a comparable element size, the joint characteristic values are the same or even higher.
Depending on the required installations per year, we recommend to use a portable hand-held setting tool (can be combined with RIVSET® semi-tubular rivets) or a stationary automatic system.

Personal support

Didn't find the right answer?

Our team is happy to support you.

Contact us