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Mokume-gane: wood-grain metal

· 1 min read · Techniques

Illustration: Mokume-gane: wood-grain metal

Mokume-gane means “wood-grain metal”. Layers of metals in different colors are laminated and fused, and the block is worked so a grain pattern appears.

Steps of the technique: Prepare the sheets, Heat, Press, Forge, Twist or carve, Flatten and etch
Summary of the steps

How it is done #

  1. Sheets of metals of different colors (copper, silver, gold, brass) are stacked.
  2. They are heated under pressure until they fuse by diffusion, without melting.
  3. The block is forged and rolled, and cut, twisted or carved so the layers draw a grain.
  4. It is patinated to heighten the contrast.

Origin #

Attributed to a craftsman named Denbei Shōami in 17th-century Japan, to decorate sword fittings. Today it is used in wedding bands and pendants.

Combinations #

Copper and silver, gold and silver, colored golds or silver and brass are the most common.

Tips #

It requires precise temperature control; the alloys must be compatible so they bond.

Step by step #

  1. Prepare the sheets. Clean and stack metals of different colors.
  2. Heat. Bring the block to diffusion temperature.
  3. Press. Press the block to join the layers.
  4. Forge. Reduce thickness without breaking the bond.
  5. Twist or carve. Create the pattern by cutting or twisting.
  6. Flatten and etch. Reveal the grain with acid or patina.

Tools and materials #

  • Copper, silver, brass or alloy sheets
  • Kiln or torch and press
  • Rolling mill
  • Acid or patinas to reveal the pattern

Common mistakes #

  • Dirty sheets: they will not bond.
  • Overheating: the layers melt.
  • Not applying even pressure.
  • Forging too fast: it delaminates.

See also #

This entry was drafted with the help of AI and is pending review by the author.