JP Pattern, Inc. assisted in the construction of a Helically Symmetric Experiment stellarator with the University of Wisconsin. A stellarator is a machine that is designed for the magnetic confinement of plasma. The goal of these devices is to achieve an endless, low cost, supply of electrical energy without harmful by-products.

The vacuum vessel was constructed in segments. These segments were initially explosion formed inside the cavity of a 9 layer steel tool.

Left: Vessel sections were then trimmed via a 5-axis laser to proper dimension. Holes for instrumentation were also added. The sections were then welded together.

Right: Magnetic coils were formed on fixtures with roller-coaster shapes to achieve the desired magnetic field necessary to establish plasma confinement.

Coils were then positioned inside a steel frame for placement around the vacuum vessel. These coils produce the magnetic field for plasma containment.

For more information regarding this project please visit the University of Wisconsin (