Sheet Metal Hemming, Hem Types & Processes Explained

Hemming is a sheet metal forming process where the edge is folded onto itself. Hems make a part more durable and improve its appearance.
Die hemming carried out in 2 steps, manual flattening on a press brake
Hem roll die set, 3 rollers
Roller Hemming offers high flexibility, automotive parts.

Sheet Metal Fabrication: An introduction to the sheet metal designing

Sheet Metal Hemming Explained and Its Types - WayKen

Sheet Metal Bending

Sheet Metal Hemming Explained and Its Types - WayKen

Numerical Quantification Model and Experiment of External Force on Roller Hemming of Curved Edge Aluminium Alloy with Adhesive, Chinese Journal of Mechanical Engineering

Cross-sectional view after conventional hemming (roll-in: 1.04 mm; hem

A study on sheet metal hemming process - ScienceDirect

Sheet Metal Bending

Hem Bends