Ubufatanye
UBUHANZI
UBWIZA N'UBUZIMA
UBUKORIKORI
UMUCO N'AMATEKA
IMYIDAGADURO
IBIDUKIKIJE
IBIRIBWA N'IBINYOBWA
UBWUBATSI BUSUBIRA INYUMA
UBUMENYI
SIPORO
IKORANABUHANGA
IBYAMBARWA
Broaching a Keyway: A Steel Pulley Turned, Bored and Keyed
A broach is a long cutter whose teeth get a little taller one after another, so one push through a hole cuts a finished shape. Broaching began in the 1850s for exactly this job: cutting the keyway in a pulley or gear so it can be locked to its shaft.
Hagati
Half a day
Amabwiriza
1
1
Watch: what is broaching?
Watch: what is broaching?
Broaching types, the machine and the broach's teeth, in a short course preview.
2
2
Turn the pulley
Turn the pulley
Saw a slice of round bar, face both sides and turn the rim to size on the lathe.
Ibikoresho by'iyi ntambwe:
Umurongo uziguye w'icyuma cyoroheje1 igiceIbikoresho bikenewe:
Umucumita w'Ibyuma
Imashini yo guhinguza icyuma
Amavuta yo gukata
Kalipe ya Vernier3
3
Bore it for the shaft
Bore it for the shaft
Drill and bore the centre to fit the shaft, and break the sharp edges.
Ibikoresho bikenewe:
Imashini yo guhinguza icyuma
Igiti cyo gukata imbere mu mwoboKalipe ya Vernier
Amakariso Menshi4
4
Set up the horn and broach
Set up the horn and broach
Slide the horn (the slotted bushing) into the bore and set the pulley flat on the arbor press table. Drop the keyway broach into the horn's slot, teeth facing the bore wall, small end first.
Ibikoresho bikenewe:
Agapfundikizo kayobora broach
Broach yo gucukura umuyoboro w'urufunguzo
Ipiresi y'ukuboko5
5
Push it through in one stroke
Push it through in one stroke
Oil the broach and press it straight through in one steady stroke. Each tooth cuts a little deeper than the last, so the keyway comes out finished.
Ibikoresho bikenewe:
Ipiresi y'ukubokoBroach yo gucukura umuyoboro w'urufunguzoAmavuta yo gukata6
6
Clean and check
Clean and check
Take out the broach and horn, clear the chips and check the key slides in snugly.
Ibikoresho bikenewe:
Kalipe ya VernierAmakariso MenshiIbikoresho
1- Umwanya
Ibikoresho bikenewe
9- Umwanya
- Umwanya
- Umwanya
- Umwanya
- Umwanya
- Umwanya
Iki gishushanyo gikora
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