Solution 08
Precision Welding & Joining
Ito Vietnam engineers complete automated joining systems around the product, material and acceptance criteria. Where appropriate, AVIO joining equipment and controls are specified as the process technology, while Ito integrates handling, fixtures, vision, force and height control, safety, traceability and line interfaces.

Application fit
Configured around the product and process.
Process-first micro-joining automation for electronics, batteries, wire assemblies, sealed packages and precision components.
Scope note: The final joining method, AVIO equipment model and process window are selected after material review and sample trials. Performance is confirmed against the customer URS and acceptance criteria.
Applications
- Copper and aluminum battery tabs
- FPC-to-PCB and fine-pitch soldering
- ACF thermocompression bonding
- Insulated wire and terminal joining
- Lithium-ion foil and tab joining
- Hermetic sealing of electronic packages
- Thermoplastic housings and precision assemblies
Engineering capabilities
- AVIO power supply, head and monitor integration
- Current, voltage, power, force, displacement and temperature profiles
- Vision-guided positioning and fixture design
- Recipe control, waveform capture and OK/NG judgment
- Automatic loading, unloading and reject handling
- Safety, guarding, extraction and MES traceability
Joining technologies
Select the process before designing the machine.
Ito evaluates materials, joint geometry, thermal impact, throughput and quality criteria to select the appropriate joining technology.
Resistance welding
Controlled current and electrode force create repeatable micro-joints with configurable current, voltage or power monitoring.
Typical fitTerminals, lead frames, wires, copper or aluminum tabsPulse heat / hot-bar
Localized heat and pressure with temperature feedback support soldering, thermocompression bonding and resin welding with limited heat transfer to nearby parts.
Typical fitFPC, PCB, fine-pitch soldering and ACF bondingUltrasonic metal welding
Ultrasonic vibration and pressure create a solid-state joint with minimal thermal effect, including suitable dissimilar non-ferrous metals.
Typical fitBattery foils and tabs, copper or aluminum harnessesUltrasonic plastic welding
High-frequency vibration and pressure deliver fast joining of thermoplastic parts without adhesives or solvents.
Typical fitAutomotive, electronics, medical and packaged productsParallel seam sealing
A controlled sealing process for packages that require a repeatable, protected enclosure around sensitive components.
Typical fitElectronic packages, sensors and precision devicesHigh-frequency induction heating
Non-contact localized heating can be integrated when the process requires controlled energy delivery without direct electrode contact.
Typical fitBrazing, soldering and localized thermal processesAVIO / Nippon Avionics
AVIO is the maker of the core micro-joining equipment and controls used for selected applications. Ito Vietnam evaluates the process, selects the appropriate AVIO technology and integrates it into a complete production system—covering tooling, motion, vision, controls, data, FAT, installation and lifecycle support.
Maker: AVIO · System integrator: Ito Vietnam
Configuration approach
Start with a proven architecture. Engineer what matters.
Resistance welding cell
Pulse heat / hot-bar bonding station
Ultrasonic metal or plastic welding cell
Parallel seam sealing system
High-frequency induction heating station
Inline multi-process joining module
Final performance, safety concept, footprint and validation plan are defined against the customer URS, product samples and acceptance criteria.
Project ownership
From requirement to stable production.
Process validation
POC, samples, DFM, DOE and acceptance criteria.
Equipment engineering
Mechanical, electrical, controls, software, vision and tooling.
Build & FAT
Machining, assembly, debug, capability study and customer training.
Installation & support
Site acceptance, ramp-up, documentation and lifecycle service.
Engineering review
Is this the right platform for your process?
Send the product, target cycle time, accuracy and quality requirements. We will help define the right configuration.
