Manufacturing services · Chapter E · Method 28

Metal stamping

Coil or sheet is pressed between a punch and die to blank, pierce, bend or draw parts at very high speed.

Ask about this method All Metal production methods

Gap-frame stamping press with coil feeder. Representative process photo · Sam D. Wilbur · CC BY-SA 4.0 · Wikimedia Commons

How it works

Metal stamping, step by step.

A labelled schematic of the process (not to scale), and the four steps every job goes through.

Labelled diagram showing how metal stamping works — Schematic · not to scale. Drawn by TCI Group.

STEP 01

Die

Build a die set for the part.

STEP 02

Feed

Coil or blanks are fed into the press.

STEP 03

Stroke

The press closes, shearing or forming the metal.

STEP 04

Eject

Parts are ejected; scrap is removed.

Reference figures

What to expect.

Typical industry values to help you plan. We agree the figures for your part on the drawing.

Angles±1°Typical

Repeatability±0.10 mm±0.05 mm typical

Burr¼–⅓ of wallOn one side

Volume10,000s – millionsPer die

Materials	Mild and high-strength steel, stainless, aluminium, brass, copper and spring steel.
Finishes	As stamped; plated, painted or powder coated; tool marks minimised by design.
Design guidance	Add radii and relief cuts to avoid splits. Keep holes away from bends and edges. Dimension inside formed features.
Best suited to	Brackets, clips, contacts, shields and washers.
Watch-outs	Die cost suits volume only; thickness changes across drawn features.

Other methods in Metal production

Previous: Die casting Next: Progressive die stamping

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Not sure this is the right route?

Send a sketch, photo, sample or CAD file with your quantity and target date. We will recommend the most sensible route and explain the trade-offs before quoting.

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Reference figures are typical published industry values for planning, not a guarantee; final tolerances, materials and finishes are agreed in writing for each project.