The clinching technology is a joining process in accordance with DIN 8593 in production technology. The metal processing industry uses the procedure, which is also referred to as “toxing”, for joining sheet metals of different strengths or different materials, also including adhesives or other intermediate layers. In industrial applications, clinching is suitable for single sheet metal thicknesses of 0.1 millimeters up to a total layer thickness of 12 millimeters and a tensile strength of up to 800 N/mm2. The cost-efficient, reliable and environmentally friendly procedure is a proven alternative to welding, screwing and riveting.
TOX® Clinching
Riveting without rivet
Is clinching suitable for your application?
Your task: Securely join metals, sheet metals and intermediate layers easily and without additional elements. Our solution: Clinching joins sheet metals of up to 12 millimeter thickness with guaranteed joint strength. The process: For clinching, we use a die patented by us with a fixed die. The technology, which is easy to realize, works without additional elements. The clinching process creates a push-button-like, positive joint of two or three layers in a cold forming process.
Advantages of TOX® Clinching
Economical and environmentally friendly
Versatile, user-oriented and reliable
From the field
Clinching of stainless steel
Stainless steel presents a particular challenge for forming technology. Due to its high flow stress, higher forming forces are required, which result in high surface tensions on the tools. TOX® Clinching safely and economically joins stainless steel with long service life.
Dissimilar materials and multi-layer connections
Clinching is also suitable for hybrid and composite materials or multi-layer connections. How this works is explained by Dr. Marcus Matzke.
The "greener" point
Clinching beats welding: CO2 footprint of clinching and spot welding compared
Reliable clinching of galvanized sheets
Thanks to TOX®: A customer from the electrical industry clinches galvanized sheets in a process-safe manner.
The types of clinching points
The classic – TOX® Round Joint
The classic – TOX® Round Joint
Ideal all-rounder for a wide range of applications
Advantages:
High static and dynamic strength
The surface remains intact
No cutting – no corrosion
Simple tool geometries
The small one – TOX® MICROpoint
The small one – TOX® MICROpoint
Particularly suitable for smallest components in electrical engineering, electronics and micromechanics
Advantages:
Diameter of only 2 mm
Joins steel, copper and/or aluminum sheets
Possible sheet metal thicknesses: 0.1 to 1.2 mm
The surface remains intact
The special one – TOX® SKB
The special one – TOX® SKB
Ideal in case of additional use of adhesives between the sheet layers
Advantages:
Special clinch die with fixed and movable segments
Exactly symmetrical point formation
Flat point elevation
The surface remains intact
The strong one – TOX® TWINpoint
The strong one – TOX® TWINpoint
Ideal in case of low flange widths, as the design of the dies is very compact
Advantages:
The double point ensures markedly increased joint strength
The joint strength almost doubles
Connection secured against twisting
The surface remains intact
For sheet metal strengths between 0.2 mm and 10 mm
The flat one – TOX® Flat Point
The flat one – TOX® Flat Point
Ideal if clinch points need to be flat. In a second work step, the created elevation is pressed flat
Advantages:
Creates a flat surface
Strength values comparable with TOX® Round Joint or TOX® SKB Joint
The surface remains intact
The sophisticated one – TOX® Vario Joint
The sophisticated one – TOX® Vario Joint
Ideal for lightweight and other hybrid construction
Advantages:
Joins sheet metals with large differences in thickness
Joins sheet metals with non-metallic materials
Joins ductile and non-ductile materials
Joint absorbs radial and axial forces
Low joining forces
Sheet surface remains intact
Systems for clinching
TOX® ElectricDrive
TOX® ElectricDrive
Modular electromechanical servo drive systems with press forces of up to 1000 kN.
TOX® Powerpackage
TOX® Powerpackage
The TOX® Powerpackage is an energy-saving pneumatic cylinder with integrated, closed hydraulic system and automatic force intensifier.
