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Copper Wire Drawn Through a Drawplate
Forge

Yenziwe ngu-

Forge

11. uMfumfu 2026NO
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Copper Wire Drawn Through a Drawplate

Wire is pulled, not rolled: a tapered rod is drawn through a hardened steel plate with a row of shrinking holes, one hole at a time, getting thinner and longer each pass. Drawing hardens copper, so it is annealed every few holes. Jewellers and electricians' forebears made all their wire this way.
Ophakathi
Half a day

Imiyalelo

1

Make a rod

Forge cast copper into a round rod a little larger than the drawplate's largest hole, annealing as it stiffens.

Izinto zokwakha zalesi sinyathelo:

Isigaxa SethusiIsigaxa Sethusi100 g
AmanziAmanzi10 amalitha

Amathuluzi adingekayo:

Insimbi YokukhandelaInsimbi Yokukhandela
Isando esinekhanda elimise okwesikhonkwaneIsando esinekhanda elimise okwesikhonkwane
Isibani Se-propaneIsibani Se-propane
Udlawu lomkhandi wensimbiUdlawu lomkhandi wensimbi
Ibhakede lokupholisaIbhakede lokupholisa
2

Taper the end

File the first 2 cm of the rod to a long taper so it pokes through the hole.

Amathuluzi adingekayo:

Iqoqo LamafayelaIqoqo Lamafayela
Isibambo SebhentshiIsibambo Sebhentshi
3

Set up the plate

Clamp the drawplate in the vise with its tapered side facing you. Rub beeswax on the rod as lubricant.

Izinto zokwakha zalesi sinyathelo:

Isibabule SezinyosiIsibabule Sezinyosi5 g

Amathuluzi adingekayo:

Ipuleti lokudonsa ucingo lensimbiIpuleti lokudonsa ucingo lensimbi
Isibambo SebhentshiIsibambo Sebhentshi
4

Draw

Push the taper through the first hole that it does not slip through, grip it with the draw tongs and pull it through in one steady pull, straight out from the plate.

Amathuluzi adingekayo:

Udlawu lokudonsaUdlawu lokudonsa
Ipuleti lokudonsa ucingo lensimbiIpuleti lokudonsa ucingo lensimbi
Amagilavu Omsebenzi EsikhumbaAmagilavu Omsebenzi Esikhumba
5

Next holes, and anneal

Draw through each smaller hole in turn. Every three or four holes, coil the wire, anneal it to a dull red and quench.

Amathuluzi adingekayo:

Isibani Se-propaneIsibani Se-propane
Isitini somliloIsitini somlilo
Ibhakede lokupholisaIbhakede lokupholisa
6

Measure and coil

Stop at the size you need, measured with the caliper. Clean, coil and anneal for soft wire.

Amathuluzi adingekayo:

I-Caliper Yedijithali Yamayintshi Ayi-6I-Caliper Yedijithali Yamayintshi Ayi-6
7

Troubleshooting

Wire drawing troubleshooting.

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Izinto

3

Amathuluzi Adingekayo

12

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