Hot Upset Forming Machines for High‑Strength, Heat‑Assisted Joint Creation

Hot Upset Forming

The Hot Upset forming and riveting process uses heat and pressure to form the fastener. The material being formed becomes malleable and collapses under pressure applied by the powerhead. Using this process, it is possible to form a round fastener into a square hole, creating very high torque joints. This makes the process excellent for forming parts that will incur high vibrational fatigue.

Key Hot Upset Features

Hardened Rivets

Form harder rivets than cold forming processes due to the nature of the Hot Upset process.

High Torque Joints

Due to the increased hole fill with Hot Upset, it is possible to create joints that will not fail even under very high torque situations. The rivet expands to fill the hole and prevents rotation even under high stress.

High Push/Pull Force Joints

Create highly durable and long-lasting joints with the Hot Upset process.

Increased Hole Fill

Through heat and pressure, rivets fill the holes they are entering, giving you some of the most solid fasteners possible. Make your process last with maximum durability in your fasteners.

Resistant to Vibrational Fatigue

Harder rivets, increased hole fill, and torque resistance make these rivets extremely resistant to vibrational fatigue. Outlast the competition with Orbitform’s Hot Upset Forming.