| advice on • ultrasonic inserting • spot welding • staking • swaging / forming • of plastic mouldings | ||
| To gain the most from this advice on • ultrasonic inserting • spot welding • staking • swaging / forming • of plastic mouldings this overview should be used in conjunction with our ultrasonic welding guide which lists the most common unfilled grades of plastic available & their suitability for each of the ultrasonic welding methods. ultrasonic welding is a fast, clean and efficient method of assembling plastic mouldings or parts. Based upon your mouldings and needs, different ultrasonic welding methods can be used to join plastic to plastic and plastic to metal parts, thus replacing or eliminating the need for solvents, adhesives or mechanical fasteners. |
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| METHOD | BEFORE |
AFTER |
| Inserting - ultrasonic embedding of metal components like inserts into preformed holes in the plastic moulding. ultrasonic inserting produces high strength welds with no stress build up at high speed and enables reduced plastic moulding cycles. |
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| Spot Welding
- ultrasonic assembly of 2 plastic mouldings at localized points without the need for premade holes or energy directors. ultrasonic spot welding produces high strength welds and is particularly good for large parts and those with complicated geometry or hard to reach joining surfaces. |
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| Staking
- melting and reforming a post on the plastic moulding to mechanically lock dissimilar materials in place. ultrasonic staking produces welds with good appearance at high speed and is good for tight assemblies. |
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| Swaging / Forming
- mechanical locking of one plastic moulding within another by ultrasonic reforming an area of the plastic ultrasonic swaging / forming produces welds with good appearance and reduced stress build up at high speed and can be used to overcome material memory. |
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| Welding -
ultrasonic assembly using a vibrating metal tool (horn) at 90° to stationery plastic mouldings which vibrate. When combined with pressure, friction heats & melts the plastic mouldings which solidify at the contact point once the vibrations stop, thus creating the weld. ultrasonic welding produces very high strength welds at high speed. With suitable plastic moulding and joint design, air tight seals are possible. |
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For more advice on plastic mouldings view our ultrasonic welding materials & plastic material selection guides
