Latest / Hardware Startups with Fexingo: Devices, Robotics, and Manufacturing Tech Companies
How Hardware Startups Use Ultrasonic Welding to Join Plastics
Episode 62 of Hardware Startups with Fexingo dives into ultrasonic welding — a fast, clean method for joining plastic parts without adhesives or screws. Lucas and Luna explain how startup hardware makers use 20 kHz vibrations to fuse enclosures, water-seal wearables, and reduce assembly costs. They walk through the physics of a horn and anvil, the importance of energy directors, and real trade-offs like part geometry limits and tooling costs. The episode features an example from a smart-ring startup that cut assembly time by 80 percent using ultrasonic welding instead of screws. Listeners…
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