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35kHz Ultrasonic Riveting Plastic Assembly for Welding Automotive Parts
Description:
In the automotive industry, ultrasonic puncture welding is often used to weld automotive interior and exterior trim parts, such as automotive wheel eyebrow welding, automotive door panel welding, automotive radar bracket welding, automotive spoiler welding, and the like. Ultrasonic puncture welding is a clean and fast connection method without bolts, welding materials, nails or adhesives. It is a method of using plastic ultrasonic vibration energy to produce plastic deformation on the surface of the workpiece and failure under the pressure surface.
Specification:
Item No. | HSW28 | HSW30 | HSW35 | HSW40 | HSW60 |
Frequency | 28khz | 30khz | 35khz | 40khz | 60khz |
Power | 1000W | 1200W | 1000W | 500W | 300W-500W |
Horn | ≤12mm | ≤10mm | ≤10mm | ≤10mm | ≤10mm |
Housing Diameter | 44mm | 44mm | 44mm | 44mm | 44mm |
Weight of Welder | 1.0kg | 1.0kg | 1.0kg | 1.0kg | 1.0kg |
Principle:
The basic principle of ultrasonic riveting is to convert
high-frequency electrical energy into high-frequency mechanical
energy acting on thermoplastics in a reciprocating longitudinal
movement, generating frictional heat at the plastic/plastic or
plastic/metal interface, forming local melting, through controlled
melting and shaping plastics. A boss or pin to lock another part.
During ultrasonic riveting, the control flow of molten plastic is
used to lock another part (usually another plastic or metal). The
preformed plastic pin passes through the hole in the part to be
locked, and the high-frequency ultrasonic vibration from the
welding head is transmitted to the upper part of the pin. The pin
is melted due to the frictional heat and fills the cavity volume of
the welding head, resulting in the locking of the spear head.
Components. The plastic pin is gradually melted under continuous
light pressure to form a rivet. The slight pressure of the horn
causes the pin head to form a specific shape (as determined by the
end structure of the horn). After the vibration stops, the plastic
solidifies and a material is consolidated.
Advantage:
Application:
1. Annular airbag cover riveting:
The airbag walnut wood veneer cover is made by arranging a plastic
hollow rivet on the back of the decorative board and then riveting
it together with the stamped thin metal plate skeleton. The airbag
walnut wood veneer plate combines the surface handleability of the
plastic component with the rigid metal structure of the stamped
metal, and has the characteristics of good elasticity, no sharp
edges, uniform stress distribution, simple and light structure,
etc. In the event of an accidental collision, the product can
maintain structural integrity without sharp fragments, not only can
prevent collision and energy absorption, but also effectively
reduce material consumption and reduce the weight of the body.
Provides better security.
2. The back of the speaker assembly:
The black part is the inner support/snap structure, the material is
ABS+PC plastic alloy, the speaker decorative panel grille is metal
mesh, and the frame trim is made of metal silver-gray ABS plastic.
The assembly combines the good visual effect of electroplatable ABS
plastic with the high strength and high impact resistance of ABS+PC
plastic alloy. The red arrow in the figure points to the riveting
point. The pre-molded riveting of the ABS decorative cover passes
through the corresponding hole in the ABS+PC alloy structural
member, and is connected by a flat head riveted joint for better
performance. Can reduce weight and processing costs.