UBUCIKO
UBUHLE NEMPILO
UBUCIKO BEZANDLA
AMASIKO NOMLANDO
EZOKUZIJABULISA
IMVELO
UKUDLA NEZIPHUZO
REVERSE ENGINEERING
IZAYENSI
EZEMIDLALO
UBUCHWEPHESHE
IZINTO EZIGQOKWAYO
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.
Ophakathi
An afternoon
Imiyalelo
1
1
Heat the bar
Heat the bar
Bring the end of the wrought iron bar to a bright yellow-orange in the forge.
Izinto zokwakha zalesi sinyathelo:
Insimbi yokukhandwa eyinduku1 kg
Amalahle1 as requiredAmathuluzi adingekayo:
Iziko lomkhandi wensimbi
Udlawu lomkhandi wensimbi
Amagilavu okushisela
Izibuko zokuphepha2
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.
Amathuluzi adingekayo:
I-fuller (insimbi yokwenza umsele)
Insimbi Yokukhandela
Isando esinekhanda elimise okwesikhonkwaneUdlawu lomkhandi wensimbiAmagilavu okushiselaIzibuko zokuphepha3
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.
Amathuluzi adingekayo:
Iziko lomkhandi wensimbiInsimbi YokukhandelaIsando esinekhanda elimise okwesikhonkwaneAmagilavu okushiselaIzibuko zokuphepha4
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.
Amathuluzi adingekayo:
Ibhulokhi elinezimbobo lokubumbaIsando esinekhanda elimise okwesikhonkwane
I-Caliper Yedijithali Yamayintshi Ayi-6Amagilavu okushiselaIzibuko zokuphepha5
5
Cut to lengths
Cut to lengths
Cut the rod hot on the hardy into lengths and let them cool in air.
Amathuluzi adingekayo:
Isisiki esimiswa ensimbini yokukhandelaInsimbi YokukhandelaIsando esinekhanda elimise okwesikhonkwaneAmagilavu okushiselaIzibuko zokuphepha6
6
How long the rod comes out
How long the rod comes out
Ilayisha incwadi ye-Jupyter…
Amathuluzi Adingekayo
10- Isibambeli
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