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User:Securiger on English Wikipedia (Wikimedia Commons) · CC BY-SA 3.0

作成者

Forge

11. 10月 2026

Forged Ball-Peen Hammer

A 2-pound ball-peen hammer forged from 1½-inch square tool steel; a 6½-inch bar gives two heads. The eye is punched and drifted, the body fullered and rounded so it tapers both ways from a thick centre, then the face is drawn out and swaged and the ball peen rounded in a bottom swage. Both ends are hardened by dipping them in turn, with water dripping on the face, and tempered from the heat held around the eye: dark brown for the face, brown or purple for the peen. The eye cools last, which keeps it tough.

上級者

4–6 hours

手順

Mark and flatten

Mark the bar with a chisel and centre punch. Flatten the end before punching, or the hole grows too large.

このステップの材料:

工具鋼角棒1 個

必要な工具:

センターポンチ

熱間たがね

鍛冶炉

金床

大ハンマー

鍛冶やっとこ

Punch and drift the eye

Punch the eye at the centre-punch mark, drive in a drift and hammer the bulged sides straight.

必要な工具:

熱間ポンチ

穴広げポンチ

鍛造槌

Shape the body

Rough out the shape with top and bottom fullers, then round the body at the anvil's rounded edge with a top fuller and set hammer, thicker at the centre than at the ends.

必要な工具:

フラー（溝切り鉄）

段付けハンマー（セットハンマー）

Face and peen

Cut the head from the bar from four sides for a square end. Draw out the face, swage it and trim it with a hot chisel; then cut the peen to length, cut off its corners and round it in a bottom swage. Drive the drift through from both sides to taper the eye.

必要な工具:

熱間たがね

下型スエージ

穴広げポンチ

Grind

Grind both ends, rounding the edges of the face slightly so it does not mark hot work.

必要な工具:

卓上グラインダー

Harden and temper

Heat the whole head slowly to the hardening heat and hold it by a tong jaw in the eye. Lower about 1½ inches of the face into water, then harden the peen the same way while water drips on the face, keeping the eye hot. Polish the ends; take the face to dark brown and the peen to brown or purple, then dip the ends alternately so the eye cools slowly.

必要な工具:

鍛冶炉

焼き入れ桶

鍛冶やっとこ

エメリー布

Handle

Shave the handle stock to fit the eye tightly, drive the head on, saw a kerf in the handle's top and drive a glued hardwood wedge into it. Trim flush and oil the handle.

このステップの材料: