EJOWELD®

Specification

  • Overview

    • Innovative joining technology ideal for composite and lightweight construction with three options available
    • Advanced solution for multi-material design, including ultra-high strength steels and structural applications
    • Uses friction welding in a fast, reliable process that is suitable for robot integration
    • Automated feeding and installation with real time process monitoring
    • Individually adjustable accessibility of the components
    • Compact design
    • Short cycle times
    • Fully supported by EJOT Application Engineers

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EJOWELD® Application Check *

Our Application Check allows you to make a general statement about the feasibility of your individual joining task.

 

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  • For technical questions please contact our Hotline Team +49 2751 529-123
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Help, guidance and technical support

Your contacts for industrial fastening systems

EJOT’s advanced fastening systems are found in countless industrial and engineering assemblies around the world. Click below for sales and technical support from one of our experienced team. We conduct inspections and observations onsite, in addition to providing help and advice direct from our UK manufacturing centre.

EJOWELD® high strength joining using friction welding

EJOWELD® is an innovative solution for joining different materials and semi-finished products using friction element welding . This innovation facilitates the joining of multi-material designs, in particular lightweight materials and ultra-high strength steels, without the need for pre-drilling. EJOWELD® uses a rotating friction element subjected to axial force, which first penetrates the light metal component before welding it to the underlying super-high-strength component. The weld results from the friction-induced heat input and the high surface pressure on the joint, enabling EJOWELD® to provide a fast, automated, high-strength and reproducible joining process without pre-treatment of the parts. Read more about EJOWELD® technology, equipment, quality assurance and a full service at EJOWELD.co.uk.

EJOWELD® CFF - join light metal cover plates with ultra-high-strength steels in the structural area without pre-holes

The EJOWELD® CFF friction element enables the joining of lightweight materials with ultra-high-strength sheet metal, making it an ideal solution for demanding joining tasks in structural parts. The large head with hollow lower head, along with the different lengths of the element, allow the joining of light metal cover plates with ultra-high-strength steels in a broad application range and without any pre-holes. Flange widths from 18 mm are ideal for this friction element, giving this joining technology versatile, process-reliable and suitable for a great variety of material thickness combinations.

  • Cover plate: light metal (150-320 N / mm²), thickness 1.0 - 4.0 mm;
  • Base plate: steel material (270-1.800 N / mm²), thickness 1.0 - 2.0 mm.

EJOWELD® SRE - small and compact, especially for joining narrow flanges

The EJOWELD® SRE friction element is only half the size of the widely-used CFF element. The material displaced during the joining process is conveyed under the head and shaped by the special drive bit. The geometry of the EJOWELD® SRE friction element is the ideal joining element for narrow flanges from 13mm width with small head projections. It is a joining technology that combines reliability and economies due to its low weight and short cycle time.

  • Cover plate: light metal (150-320 N / mm²), thickness 1.0 - 2.0 mm;
  • Base plate: Steel material (600-1.800 N / mm²) Thickness 1.0 - 2.0 mm.

EJOWELD® REF – universal joining of aluminium and fibre-reinforced plastics

EJOT has extended the EJOWELD® technology portfolio with another friction element, the EJOWELD® REF. This joining element is hollow, geometrically based on the EJOWELD® CFF and enables the joining of aluminium or FRP plates on aluminium sheets. With the support of a gradually controlled process, optimised joints using the original materials are created. A particular advantage of EJOWELD® REF is the option to use in combination with a CFF element in one piece of equipment, using a special anvil adaptor and an additional feeder. This enables three different material combinations (Al/St, Al/Al, FRP/Al) to be joined by selecting an appropriate program and feeder.

Check the potential for EJOWELD® in your application

EJOWELD® is designed to fasten hybrid components, in particular lightweight materials such as aluminium and advanced high-strength steel, with a robot-compatible friction element setting tool. By using EJOWELD® Application Check, you can establish whether this innovative joining technology is a feasible solution for a specific joining task. The tool allows you to distinguish which materials and thicknesses are to be used and which space is available.
 

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