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ClinchRivet®

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ClinchRivet® Technology – The answer to many joining issues

Ingeniously simple

In the case of the patented ClinchRivet®, the actual rivet connection is made using a simple cylindrical rivet in a joining process utilizing a drawing/pressing method. Just like the TOX®-Round Joint, the materials to be joined are not cut, but formed inside the die cavity. The result is a very strong joint, even when used with thin materials.

The special advantage of this pneumatic rivet tool is its simple, symmetrical and inexpensive rivet. This provides for a trouble-free feeding and pressing operation. The materials to be joined gain an additional retaining member. A clean and highly repeatable joint is created. Its Multipoint capability increases the cost advantages.

Due to the filling of the clinched joint with the ClinchRivet®, the strength of the joint increases considerably, and especially the shear strength. The ClinchRivet® is considerably stronger than common pierce rivets and is especially appropriate for use with thin sheet metals.

Advantages

  • very high retention forces
  • symmetrical rivet geometry, thus jam-free feeding and high productivity
  • lower investment cost than for pierce rivets
  • simple quality control by measuring the "X" dimension
  • no cutting of the punch or die side sheet metals
  • no mechanical notch effect, high dynamic capability
  • no damage to surface coating
  • no slugs produced during process
  • higher process reliability even with unfavorable production conditions, e.g. application with gaps and adhesives between layers
  • automated process and monitoring is possible
  • multipoint capability

Joint Strength Comparison

Strength comparison of various standard cold forming processes

Why is the ClinchRivet® so strong?

The ClinchRivet® connection obtains its high strength values from the solid pressed-in rivet and from the mechanical interlock in the joint neck area formed during the deep drawing stage of the process. The specially developed ClinchRivet® die with both fixed and moving segments allows this deformation. The diagram on the right shows the material hardness distribution across the neck area of a typical ClinchRivet® connection. The diagram clearly shows the interlock area and corresponding hardness values. This connection provides the highest strength values because it does not produce any mechanical stress risers.

ClinchRivet® Monitoring

Using the TOX®-Monitoring system for Force-Travel-Measurements helps to maintain the TOX®-ClinchRivet process consistently, thereby, guaranteeing a constant production quality.

Process Sequence

All technological characteristics and quality criteria of the TOX®-Round Joint also apply to the ClinchRivet®.

For further information on this special clinching joint please contact us.

Related topics

TOX®-Systems for TOX®-ClinchRivet

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Clinching – the basic technology

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BROCHURES & DATA SHEETS

Data sheet 80.04
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Data sheet 80.04: advantage of the TOX®-ClinchRivet; technology; swage head; robotic units and stationary presses

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TOX® PRESSOTECHNIK GmbH & Co. KG
Service: +61 3 9028 5087
Phone: +49 751 50070
Fax: +49 751 52391
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