A battery’s performance is only as good as the joint between the cell and the tab. A number of welding techniques are used, but in all cases, the quality of the joint is directly related to the cleanliness of the parts. Surface contaminants, such as organic compounds, grease, oil, corrosion-inhibiting agents and other compounds typically used in manufacturing, can lead to poor fusion, cracks and porosity in the joints.

AMADA WELD TECH’s new MM-L300A laser weld monitor is available for purchase now. The monitor, designed for process monitoring of both pulsed and CW welds of metals, provides judgement of laser welding processes via detection of thermal characteristics of the weld.

Pulse arc welding is a fast, clean and effective alternative to soldering for coil termination. Since coils with multiple termination points can be welded at one automation station, the technique can increase line throughput.

Whether manufacturing sensors for use in high-value, low-volume handmade devices or for highly cost-sensitive mass-produced items, manufacturers are experiencing increased pressure to deliver higher quality than in the past. For many, taking advantage of modern micro welding techniques can offer the assembly quality and robustness manufacturers desire. 

In the wearables market, the goal of joining parts together is not necessarily to be seamless. For these devices, the major manufacturing question is how to integrate high technology – with its metalized circuitry – into items that flex with the patient’s form. Manufacturers must incorporate the right welding or bonding technology to enable such flexibility while connecting electrical components.

The newest generation of under-the-skin devices, like replacement heart valves and neurological implants, has a Class III designation, requiring 100 percent hermeticity and joint integrity. To achieve that, manufacturers must incorporate the right welding and bonding technology.