Ultrasonic welding systems

Ultrasonic welding systems are flexible and versatile with a little changeover or fixture modifications, repeatable and consistent. They have a rapid wield time that is confined to the bonding or joint area; they are also able to replace the fastened and adhesives. They are used for surface welding, and also utilized for flanging, staking spot welding or insert metal sockets in the material.
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http://amtecinc.com/ultrasonic-welding-systems/