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Stronger, lighter, cheaper

Components can be bonded together without the need for heavy mechanical pressure using the Wimacor system, which is ideal for producing composite sandwich materials that are cheaper and lighter than conventional products, and at least as strong. Modularisation and high hygiene standards are also features of the process.

The need to use heavy, fixed-width mechanical presses to produce lightweight structures normally results in a limited range of possible dimensions. The surplus adhesive or insulation foam pressed out by these presses also makes the process messy, and waiting for adhesives to dry can take a long time. The durability of the bonds produced cannot always be relied on either.

Based on a highly efficient hand lay-up approach, the Wimacor system guarantees much higher adhesive strength and eliminates wastage. Enhanced pressure management enables dangerous solvents to be replaced with safer alternatives.

Choose your length and width

The lightweight, patented Wimacor system uses a partial internal vacuum to create a compressive effect capable of creating sandwich materials that are airtight and hygienic – rapidly and cost-effectively.

Weighing only 450 kg, a Wimacor unit can process a number of materials simultaneously, and can handle virtually any length and width in any two-dimensional or three-dimensional shape.

Surface layers and inner cores are freely selectable in line with the needs of the application. As mould costs are low, short production runs are not a problem.

Flexible options

Adhesive coverage inside Wimacor-produced structures is some 20% better than in those produced by conventional systems, according to studies carried out by VTT Technical Research Centre of Finland.

As the strength of Wimacor adhesive bonds means that they can form part of load-bearing structures, large surfaces no longer need extensive welded or screwed joints to ensure sufficient overall torsional rigidity, and spot loads can be managed more effectively

Machinable, weldable, and injection-mouldable components can be combined into sub-assemblies – and ducts, inlets, doors, and window structures can all be added during final assembly.

Through intelligent re-engineering, and prioritising ease of fabrication and assembly, the number of parts in a lightweight structure can be cut by an average of 40%.

In addition to superior strength and light weight, low overall cost has proved to be the most attractive feature of this technology for Wimacor’s customers – which include vehicle body-builders, construction companies supplying food processing plants and other units, manufacturers of electrical units, boat-builders, and aircraft manufacturers.

The Wimacor system is ideal for producing enclosures to protect advanced technical systems against the elements.
> Hannu Wilen
(Published in HighTech Finland 2008)