Radial Forming Machines for Delicate Fasteners & Rosette‑Pattern Riveting

Radial Forming

Radial forming and riveting is a cold forming process similar to orbital forming, but instead of sweeping around the rivet head, the forming tool displaces the material from the center outward in a rosette or floret pattern. This unique motion creates less side force compared to orbital forming, making radial forming an excellent choice for small rivet shanks, delicate materials, or unsupported rivet assemblies.

The process uses a fixed-angle peen (typically 3° or 5°) that gradually kneads the material into place, producing smooth, high-quality joints while minimizing stress on parts and tooling.

Key Radial Forming & Features

Cold Forming Process

No heat is required, which makes radial forming ideal for sensitive materials and applications where thermal distortion must be avoided.

Delicate Material Friendly

Perfect for fragile rivet materials or unsupported assemblies since the floret motion distributes force evenly and gently.

Small Shank Diameter Capability

Handles small rivet shanks with precision, forming strong joints without excessive force.

Gradual Material Displacement

The rosette motion kneads the rivet from the center outward, reducing side forces and improving joint integrity.

Precision Control

Fixed peen angles of 3° or 5° provide consistency, repeatability, and minimal variation in formed parts.

Aesthetic Appeal

The smooth, controlled forming action produces visually appealing joints with superior surface finishes.

Reduced Stress on Parts

Lower impact and downforce reduce the risk of damaging thin or delicate components, while also extending tool life.