Energy storage welding machine cannot seal

Can electronic packages be sealed using projection welding?

Electronic packages for medical, communications, defense, and other applications are often hermetically sealed into metal containers using projection welding. However, current projection welding machines may not reliably seal packages with weld perimeters exceeding 7.6 cm (3.0 in), and also may expel metallic particles into the package.

Are electronic package welding machines reliable?

This reliability in volume productions not only demonstrates that this new electronic package welding machine is a significant advance in the state-of-the art, it, suggests the advent of new class of reliable hermetic sealing technologies. et. Al Acta Metal. Sin. (Engl. Lett.)

How does a weld machine work?

The machine operates from a standard 15A, 110V circuit, and does not require special cooling. In addition, this machine allows current-based monitoring of weld quality, and the paper presents selected data from welding of a variety of commercial and military electronic packages.

Can a low-impedance projection welding device reliably weld large packages?

This paper describes a novel low-impedance projection welding device that can reliably weld large packages with up to 25.4 cm (10.0 in) weld perimeters with zero weld expulsion and zero weld defects, using half the energy required by traditional machines.

Can a CD Weld a short package perimeter?

However, CD systems perform well for package welding perimeters from about 0.15 to 7.5 cm (.06 to 3.0 in), and their short weld times minimally heat the sealed components. In summary, current AC and CD industrial welding machines can reliably weld short package perimeters.

How does Weld impedance affect a welding machine?

Weld impedance, – as seen by the electrodes between the electronic package, – is inversely proportional to the weld perimeter. For example, a 15 cm (6.0 in) weld perimeter has half the impedance of a 7.5 cm (3.0 in) perimeter. By comparison, the welding machine's impedance is fixed by design, and cannot change as the weld impedance changes.