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Processing of functional elements of all manufacturers

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Process Competence - The best technical solution for every application

TOX® PRESSOTECHNIK provides you with the best technological solutions and complete turnkey systems from one source. In addition to the most widely used processes for the installation of fasteners and functional elements, our employees are also working on individual solutions. This is made possible through our experience, existing ideas and designs and our wide range of standard components.

Although there are many fasteners and functional element types, there are 4 basic processes:

Through our long-standing cooperation with system suppliers and manufacturers of functional elements, TOX® PRESSOTECHNIK as a competent partner is able to supply the perfect system solution from one source for processing your elements.

TOX® PRESSOTECHNIK provides the competence to press in various elements into the given piece parts. In addition to standard versions, customized solutions can be realized. The suitable process and application for insertion of the functional elements is defined by the element itself and its design.

Not sure how to proceed? – The element defines the process!

Self-Clinching

Process category: Process without pre-punching

Process description: The element meets an unpunched component and is pressed in with high pressure. The element deforms to create a solid clinch connection.

Fasteners/Functional elements: Self-clinching rivets, self-clinching nuts, self-clinching studs

Characteristic of the clinch element insertion process:

Micrograph of a clinch element

The characteristic of the clinching process is the creation of the firm seat in the component without cut through of the component itself. This process is particularly suitable for studs and screws which are pressed into components which have specific requirements for leak tightness.

The seating of the functional element in the component is produced by a deformation and the generation of the undercut between element and component.

Self-Piercing

Process category: Process without pre-punching

Process description: The functional elements punch through the unpunched components. A solid connection that is resistant to twisting and pressing out is created by the flow of material into the element.

Fasteners/Functional elements: Pierce studs, pierce nuts, self-piercing nuts

Characteristic of the punch element insertion process:

Micrograph of a pierce element

During piercing process the functional elements are pressed into an unpunched piece part or component.  A firm seating secured against rotation and press out is created by the lateral flow of punch side material.

 

 

Press fitting

Process category: Process with pre-punching

Process description: The functional element is pressed into a pre-punched and formed component. The material flows behind the element and ensures a force-locking connection.

Fasteners/Functional elements: Press-in studs, press-in nuts, clinch studs, clinch elements

Characteristic of the press fitting element insertion process:

Micrograph of a press fitting element

This process is characterized by deforming the component into untercuts of the functional element. Here, there are two different kinds of function elements: elements which are pressed into pre-punched components and elements which are pressed into piece parts without pre-punching.

The functional elements can have a pre-punching function or not.

Riveting

Process category: Process with pre-punching

Process description: The element is inserted into a prepunched component. It gets deformed and a solid connection is created.

Fasteners/Functional elements: Rivet studs, rivet nuts, riveting fasteners

Characteristic of the rivet element insertion process:

Micrograph of a rivet element

During riveting process, the component and/or the functional element is deformed and thus a firm seat in the component is created. This process is particularly suitable for fuctional elements which are pressed into a pre-punched component or which are self-piercing elements.

You define the element - we deliver the complete equipment!

Customer applications

View customer projects that have used machinery and components of TOX® PRESSOTECHNIK for insertion applications:

 

To get started on your own insertion project, please request a quote today!

BROCHURES & DATA SHEETS

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Functional element technology

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TOX® PRESSOTECHNIK L.L.C.
4250 Weaver Parkway
Warrenville, IL 60555
Phone: +1 630 4474600
Fax: +1 630 3936800
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