UBUHANZI
UBWIZA N'UBUZIMA
UBUKORIKORI
UMUCO N'AMATEKA
IMYIDAGADURO
IBIDUKIKIJE
IBIRIBWA N'IBINYOBWA
UBWUBATSI BUSUBIRA INYUMA
UBUMENYI
SIPORO
IKORANABUHANGA
IBYAMBARWA
Wrought Iron Rod Drawn Down from Bar
Thin iron rod for nails, rivets and bolts is drawn out of thicker bar under the hammer: each blow makes it thinner and longer. A fuller speeds the work on thick stock; the square is knocked to eight sides, then rounded in a swage.
The picture: a hot bar end on the anvil under a swinging hammer.
Hagati
An afternoon
Amabwiriza
1
1
Heat the bar
Heat the bar
Bring the end of the wrought iron bar to a bright yellow-orange in the forge.
Ibikoresho by'iyi ntambwe:
Umugozi w'icyuma cyacuzwe1 kg
Amakara1 as requiredIbikoresho bikenewe:
Uruganda rw'umucuzi
Amafashi y'umucuzi
Uturindantoki two gukomeza ibyuma
Amadarubindi y'umutekano2
2
Fuller, then flatten
Fuller, then flatten
On thick bar, hammer a row of grooves across it with the fuller or the hammer's peen, then flatten the ridges with the face: the bar grows longer. Turn it a quarter turn and do the same on the next face.
Ibikoresho bikenewe:
Fuller (icyuma cyo gucukura imirongo)
Ingoyi
Inyundo ifite umutwe utambitseAmafashi y'umucuziUturindantoki two gukomeza ibyumaAmadarubindi y'umutekano3
3
Draw to size
Draw to size
Keep drawing on the anvil face, turning a quarter turn every few blows so it stays square. Work only while it glows; reheat as soon as it dulls.
Ibikoresho bikenewe:
Uruganda rw'umucuziIngoyiInyundo ifite umutwe utambitseUturindantoki two gukomeza ibyumaAmadarubindi y'umutekano4
4
Round it
Round it
Knock the corners down to eight sides, then roll and hammer it in a round groove of the swage block until it is round. Check the size with the caliper.
Ibikoresho bikenewe:
Igiti cy'ibyuma gifite imyoboInyundo ifite umutwe utambitse
Ikigereranyo cya Digitale cy'Amasentimetero 6Uturindantoki two gukomeza ibyumaAmadarubindi y'umutekano5
5
Cut to lengths
Cut to lengths
Cut the rod hot on the hardy into lengths and let them cool in air.
Ibikoresho bikenewe:
Icyuma gikata ku ngoyiIngoyiInyundo ifite umutwe utambitseUturindantoki two gukomeza ibyumaAmadarubindi y'umutekano6
6
How long the rod comes out
How long the rod comes out
Gupakira ikaye ya Jupyter…
Ibikoresho bikenewe
10- Umwanya
- Umwanya
- Umwanya
- Umwanya
- Umwanya
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