Ultrasonic Stud Welding


Ultrasonic stud welding

The welding of ultrasonic pegs is a suggested option when it is necessary to weld similar plastic parts in a single point or in several separate points without the need for continuous welding.

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Ultrasonic stud welding is the recommended option whenever similar plastic parts need to be welded in a single or multiple points without calling for seam soldering.

Whenever a resin selection, the size of the part of its complexity may inhibit the use of other methods, ultrasonics provide a feasible solution.

Ultrasonic technology is widely employed in stud welding. An oversized stud is ultrasonically driven into a hole, and binding occurs along the circumference of the stud; the weld strength is related to stud diameter and depth.

Maximum tensile strength is achieved when depth of the weld is equal to half the diameter of the set stud.

This method can be used to lock two dissimilar stud materials in a specific place.

A stud can be moulded into one part or in various separate pieces.

If you wish to get a free consultation about stud bonding, fill out the form above.

Basic Guidelines for Stud Welding

  • Low pressure / power
  • Higher Amplitude
  • If the stud is small, it is easier to weld it with ultrasounds

Visit our Youtube Channel if you want to see Sonic Italia’s equipment for stud fastening and in other applications.

More information about stud welding machines

If you have additional questions about our stud welding systems, do not hesitate to contact us. We will gladly answer any question you may have. Plus, you may learn more browsing our website featuring our vast product and research range.

Fill out the form to schedule a free consultation by our expert staff.

Nonwovens ultrasonic welding
Solutions for non-woven fabrics. Materials can be 100% acrylics or blends.

Plastic assembly systems
Plastics assembly is used when  high aesthetic quality and high production speed are required.

Ultrasonic bonding
Customized bonding solutions for synthetic fabrics and non-wovens.

Ultrasonic cutting
Sonic Italia manufactures up to date machines to cut thermoplastic materials with ultrasounds.

Food cutting
High frequency blades suitable for clean, precise food portioning.

Hermetic sealing
Friction generates localized heat due to the molecular movement of two plastic film pieces at the vibrating sonotrode’s contact area.

Ultrasonic sewing machine
This process is versatile – allowing users to seam, cut, slit, trim, tack, emboss and seal simultaneously.

Ultrasonic slicer
Slicing systems integrated in semi or fully automated slicers.

Ultrasonic slitting line
Slitting is the most efficient solution for a clean cut which prevents unraveling.

Ultrasonic tools
Tools for customised slicing and binding solutions.

Ultrasonic welding 
Discover more about energy directors development.

Hand-held Ultrasonic Welder 
Manual ultrasonic cutting and welding handgrip for better maneuverability.

Manure Belt Welder 
Discover more about our manual ultrasonic welder designed for manure and egg conveyor belts.

Film and Fabrics Welding 
Applications for non-woven, packaging and textiles in the clothing industry.

Ultrasonic Insertion
Ultrasonic insertion of a threaded brass stud in a plastic component.

Ultrasonic blades 
Sonic Italia’s technical department develops blades of all shapes and designs.

Ultrasonic Linear Circular Weaving Cutter
Suited for manufacturing rafia items.

Ultrasonic Punching
Solutions for plastic, acrylics and filtration fabrics.

Ultrasonic Rotative Bonding System For Pleated Filters 
An eco-friendly rotary bonding system designed for pleated filters that doesn’t require any solvents or adhesives.

Ultrasonic Sonotrode
Sontorodes: thirty years’ experience in manufacturing customized horns.

Ultrasonic Spot Welding
Spot welding for components assembly.

Ultrasonic Stud Welding
Chosen when similar plastic parts need to be welded at single or multiple localised points.



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