UBUHANZI
UBWIZA N'UBUZIMA
UBUKORIKORI
UMUCO N'AMATEKA
IMYIDAGADURO
IBIDUKIKIJE
IBIRIBWA N'IBINYOBWA
UBWUBATSI BUSUBIRA INYUMA
UBUMENYI
SIPORO
IKORANABUHANGA
IBYAMBARWA
Combination Pliers Forged: Ridged Jaws, Pipe Grip and Side Cutters
Combination pliers, also called lineman's pliers, do three jobs: ridged flat jaws grip, a rounded hollow behind them holds rods and pipes, and bevelled side cutters near the joint snip wire. A strong rivet joins the two forged halves. Forge them from tool steel, file the jaws, rivet them, and harden the jaws and cutters.
The picture: an old, worn pair of combination pliers.
Hejuru
Two days
Amabwiriza
1
1
Forge the halves
Forge the halves
Forge two mirror halves from tool steel: a jaw, a flat boss for the joint, and a long handle (our size: jaw 35 mm, handle 140 mm from the joint).
Ibikoresho by'iyi ntambwe:
Inkoni ifite impande umunani y'icyuma cy'ibikoresho0.4 kg
Amakara2 as requiredIbikoresho bikenewe:
Uruganda rw'umucuzi
Ingoyi
Inyundo ifite umutwe utambitse
Amafashi y'umucuzi
Uturindantoki two gukomeza ibyuma
Amadarubindi y'umutekano2
2
Shape the jaws
Shape the jaws
Anneal both halves. File each jaw flat with cross ridges at the tip, a rounded hollow behind it, and a bevelled cutting edge next to the joint, so the edges meet when the jaws close.
Ibikoresho bikenewe:
Uruganda rw'umucuzi
Ikariso ry'Icyuma
Igifata gikomeye cy'ameza y'akazi
Ibuye ryo gutyaza ry'uruziga3
3
Rivet the joint
Rivet the joint
File the bosses to lap closely, drill them together, and set a strong steel rivet so the jaws close without play.
Ibikoresho by'iyi ntambwe:
Utuma tw'icyuma1 igiceIbikoresho bikenewe:
Igikoresho cyo gutobora gikoreshwa n'intokiIgifata gikomeye cy'ameza y'akaziInyundo ifite umutwe utambitseIngoyi4
4
Harden the jaws
Harden the jaws
Heat the jaws and cutters only to cherry red and quench in water. Polish them bright, warm the joint and quench when the cutters show straw (our temper).
Ibikoresho by'iyi ntambwe:
Amazi10 litiroIbikoresho bikenewe:
Uruganda rw'umucuzi
Indobo yo gukonjeshaAmafashi y'umucuziUturindantoki two gukomeza ibyumaAmadarubindi y'umutekano5
5
Hone and test
Hone and test
Hone the cutter bevels and try them on soft copper wire, then grip a rod in the hollow to check the jaws meet square.
Ibikoresho bikenewe:
Ibuye ryo gutyaza rya grit 10006
6
Force at the edges
Force at the edges
Gupakira ikaye ya Jupyter…
Ibikoresho
4- Umwanya
- 2 as requiredUmwanya
- 1 igiceUmwanya
- 10 litiroUmwanya
Ibikoresho bikenewe
12- Umwanya
- Umwanya
- Umwanya
- Umwanya
- Umwanya
- Umwanya
- Umwanya
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