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作成者

Forge

11. 10月 2026

Forged Geologist's Pick

A geologist's pick of about 2½ pounds, with a square striking head on one side of the eye and a long curved point on the other, forged from 1¼ × 1¾-inch tool steel. After the eye is punched, the bar is cut part way through beside it with a hot chisel and the waste cut away, then each end is drawn out, under a power hammer in the original. The point is hardened like a cold chisel and tempered to dark blue; the head is then hardened about 2 inches back and tempered to brown or dark straw, with damp coal round the point so it is not softened again.

上級者

4–6 hours

手順

Mark and punch

Mark the stock with a centre punch and chisel, and punch the hole for the eye.

このステップの材料:

工具鋼平角棒1 個

必要な工具:

センターポンチ

鍛冶炉

金床

熱間ポンチ

鍛冶やっとこ

Cut beside the eye

With a drift in the eye, flatten the sides. Cut part way through 3/16 inch from the edge of the hole on both sides, round the bottom of the cuts with a thin fuller, and cut out the waste.

必要な工具:

穴広げポンチ

熱間たがね

フラー（溝切り鉄）

Draw out the ends

Draw out one end, cut the pick from the bar, then draw out the other end to the point's form.

必要な工具:

カム式鍛造ハンマー

大ハンマー

Finish the head and point

With the drift in the eye, smooth around it with a set hammer. Finish the head with set hammer and flatter and cut it square from four sides; finish the point with a flatter and cut it to length. Grind face and point.

必要な工具:

段付けハンマー（セットハンマー）

平らし工具

熱間たがね

卓上グラインダー

Harden and temper

Harden the point like a cold chisel and temper it to dark blue. Then heat about 2 inches of the head, keeping damp coal around the point, harden it the same way and temper it to brown or dark straw.

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: