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Intermediate3-6 weeks

Raising Bowl Form Guide

Learn raising bowl form from scratch with a clear step-by-step workflow, recommended tools, safety guidelines, and expert tips.

silversmithshollowware makers

Workflow

  1. Cut Disc Blank

    1 hour

    Calculate disc diameter from desired bowl height and diameter, then cut from annealed sheet.

  2. Block Raise First Stages

    3 hours

    Hammer disc into raising block with cross-peen, rotating after each blow for even curvature.

  3. Planish Surface

    2 hours

    Use planishing hammer on stake to smooth hammer marks and refine bowl profile.

  4. Trim Rim and Finish

    2 hours

    Level rim, file smooth, and prepare for optional planished or matte finish.

Checklist

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Planning

Preparation

Safety

Execution

Quality

Documentation

Reference Materials

Raising Disc FormulaStandard

Disc diameter ≈ (bowl diameter + bowl height) × 1.5 for shallow bowls.

Metal ThinningFormula

Wall thickness decreases roughly 20–30% during raising — start thicker than final target.

Anneal FrequencyTable

Typical annealing intervals during raising.

StageAnnealsSign
Initial blockEvery 2 passesResistance
Mid raiseEvery passCrack risk
PlanishAs neededWork hardening

  • Stake Match

    Match stake curvature to bowl section being worked to avoid dents.

  • Mark Rotation

    Mark bowl edge with tape every 8 blows to maintain even rotation.

  • Crack Stop

    Stop immediately if radial cracks appear — anneal and file out before continuing.

Safety Notes

  • Secure stakes firmly before hammering.
  • Wear hearing protection during extended raising sessions.

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