ULTRASONIC WELDING

JOINING METALS WITH PRECISION

In the industrial world, the quest for efficient, precise and environmentally friendly joining methods is ongoing. Among these methods, ultrasonic welding has emerged as a powerful technique, offering a myriad of advantages over conventional methods like adhesive bonding or gas welding.

TECHNAX ultrasonic welding head

The ultrasonic welding process operates on the principle of converting high-frequency electrical energy into high-frequency mechanical energy. This mechanical energy manifests as reciprocating longitudinal motion, generating frictional heat at the interface.

This localized heat leads to a melt at the joining surfaces. Unlike traditional welding methods that rely on high temperatures, ultrasonic welding of metals is a cold welding process.

Ultrasonic waves are used to join metal parts, generating minimal heat except at the weld spot.

Vibrations resulting from the ultrasonic process are transmitted through a sonotrode, inducing movements at the weld interface while an anvil holds the components in place.

Friction generated at the interface leads to plastic deformation, enabling the materials to be joined without melting. This process is particularly suited for welding thin metals, films and wires, ensuring precise and reliable results.

BENEFITS

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Speed and Precision : materials are melted and joined in split seconds with precise control over welding parameters.

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Consistent Quality : advanced control technology ensures reproducible and appealing results, vital for applications requiring high precision.

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Flexibility and Environmentally Friendly : ultrasonic welding can be adapted to various materials and shapes while being clean, energy-efficient and producing minimal waste.

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Cost Efficiency : short process cycle times, low energy consumption and the elimination of additional tools or additives make ultrasonic welding a cost-effective process.

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Strength and Safety : ultrasonic welding results in strong, visually flawless connections without damaging the metals, ensuring safety and reliability.

50mm2 copper cable on 4mm copper busbar

TECHNAX SOLUTIONS

Ultrasonic welding is suitable for joining similar and dissimilar metals, with a focus on non-ferrous metals such as aluminiumsilvercopper and nickel. Applications range from battery and cable connections in the automotive and electronics industries to various electrical and mechanical components.

TECHNAX can perform process feasibility and validation tests in its welding laboratory. According to customer requirements, TECHNAX will support and offer the best industrial solutions for better productivity and long life-time of the equipment.

ULTRASONIC WELDING ASSEMBLY EXAMPLES

Ultrasonic welding of an aluminium coil
Aluminium coil
Copper cable 70mm² ultrasonics welded

Copper cable 70mm² ultrasonics compacted

Copper cable 50mm² on copper busbar 4mm

Copper cable 50mm² on copper busbar 4mm

Aluminum cable 50mm² on 5mm aluminim busbar ultrasonics welded

Aluminium cable 50mm² on aluminium busbar 4mm

ULTRASONIC WELDING PROJECTS


Ultrasonic welding equipment

 

(+33) 4 78 90 01 61

sales@technax.com