Sheet hydroforming is a metal fabrication technique that leverages pressurized fluid to form and shape ductile metal into desired components using pre-shaped plates or dies. As part of this process, a flat metal disc —known as the blank— is placed onto a mechanically driven mandrel. The hydraulic fluid is pumped into the chamber behind a rubber diaphragm that is the counter pressure to the rising mandrel. This causes the metal to draw until it takes the shape of the mandrel.

Hydroforming is a quick, efficient, and affordable metal forming method that reduces wastage while guaranteeing structurally robust parts and components with minimal need for secondary finishing operations.

Hydroforming is ideal for shaping intricate, exceptionally complex, or asymmetrical components.Both convex and concave shapes can be attained using this metal forming method.

Helander Metal Spinning Company has the capability to hydroform parts up to 12” deep and 19” in diameter, in a variety of material thicknesses. The ability to form high-quality, uniform, seamless components at any quantity with minimal secondary finishing makes hydroforming an appealing and versatile production method.