UBUCIKO
UBUHLE NEMPILO
UBUCIKO BEZANDLA
AMASIKO NOMLANDO
EZOKUZIJABULISA
IMVELO
UKUDLA NEZIPHUZO
REVERSE ENGINEERING
IZAYENSI
EZEMIDLALO
UBUCHWEPHESHE
IZINTO EZIGQOKWAYO
Steel Rivets Forged in a Nail Header
A rivet is a short rod with a head on one end; set through a hole, its tail is hammered into a second head, and it holds the parts together for good. Solid rivets go back to the Bronze Age. They are forged the way nails are, headed in a nail header, only the shank is cut off square instead of drawn to a point.
The picture: riggers setting red-hot rivets on the Sydney Harbour Bridge, 1930–31 (Sam Hood).
Ophakathi
An afternoon for a few dozen
Imiyalelo
1
1
Heat the rod end
Heat the rod end
Heat the end of a mild steel rod of the rivet's diameter in the forge to a bright orange.
Izinto zokwakha zalesi sinyathelo:
Ubhamu Oluyindilinga Lwensimbi Ethambile1 m
Amalahle1 as requiredAmathuluzi adingekayo:
Iziko lomkhandi wensimbi
Udlawu lomkhandi wensimbi
Amagilavu okushisela
Izibuko zokuphepha2
2
Nick at length
Nick at length
Nick the rod nearly through on the hot cut hardy at the rivet's length plus enough for the head (see the notebook).
Amathuluzi adingekayo:
Insimbi Yokukhandela
Isisiki esimiswa ensimbini yokukhandela
Isando esinekhanda elimise okwesikhonkwaneAmagilavu okushiselaIzibuko zokuphepha3
3
Head it
Head it
Drop the end into the nail header over the anvil's pritchel hole, with the head stock standing proud, and spread it with three to five quick blows, as for a nail head. Snap it free at the nick.
Amathuluzi adingekayo:
Ibhodi lekhanda lesipikiliInsimbi YokukhandelaIsando esinekhanda elimise okwesikhonkwaneAmagilavu okushiselaIzibuko zokuphepha4
4
Cool and check
Cool and check
Let the rivets cool (do not harden them: the tail must spread cold or hot when set). Check the shank with a caliper; file off any burr so it slips into its hole.
Amathuluzi adingekayo:
Ibhakede lokupholisa
I-Caliper Yedijithali Yamayintshi Ayi-65
5
Rod for each rivet
Rod for each rivet
Ilayisha incwadi ye-Jupyter…
Amathuluzi Adingekayo
10- Isibambeli
- Isibambeli
- Isibambeli
- Isibambeli
- Isibambeli
- Isibambeli
- Isibambeli
- Isibambeli
- Isibambeli
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