IṢẸ́ ỌNÀ
ẸWÀ ÀTI ÌLERA
IṢẸ́ ỌWỌ́
ÀṢÀ ÀTI ÌTÀN
ÌṢERÉ
ÀYÍKÁ
OÚNJẸ ÀTI OHUN MÍMU
REVERSE ENGINEERING
SÁYẸ́ǸSÌ
ERÉ ÌDÁRAYÁ
ÌMỌ̀-Ẹ̀RỌ
ÀWỌN OHUN WÍWỌ̀
Forged Hunting Axe (Hatchet)
A small one-handed axe forged from a 7/8 × 2-inch bar of good tool steel, best made by two people; a 6¾-inch bar gives two heads. The eye, about 9/16 × 1½ inches, is punched at a yellow heat with an eye punch and opened with drifts, the blade drawn out to a 3-inch edge and the head cut to length. The axe is annealed in lime or ashes, ground and buffed, then hardened from the hardening heat in tepid water and tempered by two hot iron bars laid on either side at the centre: dark purple for the blade, blue for the head.
Ilọsíwájú
4–6 hours
Ìlànà
1
1
Mark and punch the eye
Mark and punch the eye
Mark the stock with chisel and centre punch. At a yellow heat, punch the eye with the narrow edge of the punch toward the blade; lift the punch after each blow to check it runs straight and to let it cool; a little fine coal in the hole stops it sticking. Punch nearly through, then finish from the other side.
Àwọn ohun èlò fún ìgbésẹ̀ yìí:
Ọ̀pá pẹlẹbẹ irin irinṣẹ́1 ẹyọÀwọn irinṣẹ́ tí a nílò:
Igi Àmì Àárín
Ìléru alágbẹ̀dẹ
Ìdí Alágbẹ̀dẹ
Ohun ìlu ihò gbígbóná
Òòlù ńlá
Ẹmú alágbẹ̀dẹ2
2
Drift and draw out
Drift and draw out
Drive in a tool-steel drift, hammer the bulges down to the bar's size and smooth with a flatter; take the drift out before each reheat. Use two drifts, the first 3/8 inch narrower. Draw out the blade, driving the drift back in as the eye stretches so no cold shut forms.
Àwọn irinṣẹ́ tí a nílò:
Ohun ìfẹ̀ ihò
Ohun èlò ìpẹ́rẹ́
Òòlù tí a ń jù sílẹ̀3
3
Shape and trim
Shape and trim
Shape the blade with a heavy hammer and flatter and form its edge. Cut the head from the bar, draw it to size, cut it to length, then trim the blade to shape.
Àwọn irinṣẹ́ tí a nílò:
Òòlù Alágbẹ̀dẹOhun èlò ìpẹ́rẹ́
Ìlù gbígbóná4
4
Anneal and grind
Anneal and grind
Heat to a full red and anneal in lime or ashes. When cold, grind on an emery wheel and finish on a buffing wheel.
Àwọn irinṣẹ́ tí a nílò:
Ìléru alágbẹ̀dẹ
Ẹ̀rọ ìfá orí tábìlì5
5
Harden and temper
Harden and temper
Heat very slowly to the hardening heat and cool in tepid water. Draw the temper with two hot iron bars laid on either side at the centre; when the blade is dark purple and the head blue, cool quickly in water.
Àwọn irinṣẹ́ tí a nílò:
Ìléru alágbẹ̀dẹ
Àpótí ìtutùẸmú alágbẹ̀dẹ6
6
Handle
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.
Àwọn ohun èlò fún ìgbésẹ̀ yìí:
Igi Líle Fún Ìdìmú1 ẹyọ
Gọ̀gọ̀ igi líle1 ẹyọ
Òróró Ọ̀gbọ̀10 mlÀwọn irinṣẹ́ tí a nílò:
Ayùn onídìmú méjì
Ayùn ẹni méjì
Ìdìmú TábìlìÀwọn ohun-èlò
4- Àyè
- 1 ẹyọÀyè
- 1 ẹyọÀyè
- 10 mlÀyè
Àwọn irinṣẹ́ tó nílò
16- Àyè
- Àyè
- Àyè
- Àyè
Ìtọ́nisọ́nà yìí ń ṣe
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