Automotive radar base manufacturers adopt puncture ultrasonic welding to assemble ABS radar plastic shells. Conventional flat ultrasonic welding horns cannot match the concentrated multi-point welding area of radar bases. Standard welding heads have no pointed puncture teeth, leading to shallow fusion, unstable tensile strength, high defective rate during mass production of auto radar accessories. Long-time assembly line production also needs consistent welding effect without frequent parameter adjustment.

1. The radar base requires multiple fixed-point puncture welding; ordinary flat horns cannot realize targeted piercing.
2. The position, quantity and height of puncture tips must completely align with the reserved welding dots on radar products.
3. Uniform piercing depth is required; partial over-piercing or incomplete melting is not allowed.
4. The horn structure must fit the compact space of radar parts, supporting stable long-hour continuous welding.

According to customer’s automotive radar base 2D drawings, ABS material parameters and multi-point puncture welding demands, we customized this multi-tip puncture ultrasonic welding horn.

We precisely designed the distribution, height and angle of all conical puncture teeth one by one to match all welding positions of the radar base. The horn is made of high-hardness aviation aluminum via full CNC precision machining. We equipped matched positioning fixture and digital auto-tracking ultrasonic welder, completed repeated puncture welding trials to confirm proper pressure, amplitude and welding time.

• ✅ All conical puncture teeth accurately correspond to radar base welding positions, full contact without offset
• ✅ Every puncture depth keeps consistent; ABS plastic layers fully melt and interlock
• ✅ Welding tensile force stays uniform in mass batches; radar base never splits or falls apart
• ✅ No plastic scorching, clean welding surface, meets automotive component appearance standards
• ✅ Stable performance for long continuous running; no frequent equipment parameter correction needed

We provide full custom service for multi-point puncture welding horns. Customers can supply radar, automotive plastic part samples or drawings. We customize the number, layout, height of puncture tips, overall horn shape and matched fixture. Free sample welding test is available to verify welding quality before formal mass order.