Induction bonding

Since the early 1980s, ENRX have been at the forefront of developing induction bonding solutions.

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Induction heating explained

What is induction bonding?

Induction bonding uses induction heating to cure bonding adhesives. Induction is the main method for curing adhesives and sealants for car components such as doors, hoods, fenders, rearview mirrors and magnets. Induction also cures the adhesives in composite-to-metal and carbon fiber-to-carbon fiber joints. There are two main types of automotive bonding: spot-bonding, which heats small segments of the materials to be joined; and full-ring bonding, which heats complete joints.

Brochure: Induction applications

What are the benefits?

Precise energy inputs for each panel with spot bonding systems
Small heat affected zones minimise total panel elongation
Little need for spare coils with a one-size-fits-all coil for full-ring bonding
Clamping is not needed when bonding steel panels, which reduces stresses and distortion

Full-ring bonding with induction heating

Where is it used?

Induction is the preferred bonding method in the automotive industry. Widely used to bond steel and aluminium sheet metal, induction is increasingly employed to bond new lightweight composite and carbon fiber materials. Induction is used to bond curved strands, brake shoes and magnets in the electrotechnical industry. It is also used for guides, rails, shelves and panels in the white goods sector.

Sinac induction heating equipment used for bonding applications in the automotive industry

What equipment is available?

ENRX is the world’s largest induction curing specialist. In fact, we invented induction spot curing. We also invented the U-Coil® process, the most advanced hem bonding system on the market. A selfaligning and 100 per cent repeatable system, U-Coil® ensures uniform heating with the lowest possible distortion risk. The equipment we deliver ranges from individual system elements such as power sources and coils, to complete and fully supported turn-key solutions.

Image gallery

Induction is the preferred bonding method in the automotive industry.
Induction is the main method for curing adhesives and sealants for car components such as doors, hoods, fenders, rearview mirrors and magnets.
Induction bonding. Universal fixture for lab/process trials
Full-ring bonding with two-turn flexible coil
Aluminium hood spot bonding tool. Note: The absence of clamps, minimal nest and realtively small curing areas.