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TEKNOLOGI
BOLEH PAKAI
Boring Bar: Driven Between Centres, with a Set-Screw Cutter (Yates, 1922)
A home-made boring bar for holes too long for an ordinary boring tool, which would spring. A short, stiff bar runs between the lathe centres, driven by a dog, and carries a hardened tool-steel cutter locked in a cross-hole by a set screw. The work is bolted to the lathe carriage and fed past the turning cutter.
Result: a boring bar, plus the small short-cut bar of Fig. 110.
Source: R. F. Yates, Lathe Work for Beginners (1922), pp. 134-136. Unknown: bar diameter and set-screw size. Picture: Figs. 110-111 of the book.
Pertengahan
Unknown
Arahan
1
1
Turn the bar
Turn the bar
Turn a bar no longer than the job needs; the shorter it is, the less it twists under the cut. Drill both ends for the lathe centres. For short cuts, the small bar of Fig. 110 is 4 to 6 inches long with a round shank and a squared end. Ours: mild steel round bar. Not given: the diameter.
Bahan untuk langkah ini:
Bar bulat keluli lembut1 boring barAlatan diperlukan:
Mesin Pelarik Logam
Dimensi tidak diketahui2
2
Fit the cutter and set screw
Fit the cutter and set screw
Drill a cross-hole through the bar for the cutter and drill and tap a hole into it for a set screw that locks the cutter. Make the cutter of tool steel, grind its point with proper clearance, and harden it.
Bahan untuk langkah ini:
Bar keluli alat segi empat sama1 cutter
Logam tidak diketahui1 set screwAlatan diperlukan:
Gerudi Tiang
Set pemotong ulir
Batu canai roda
Ketuhar rawatan haba
Baldi pelindapkejutan3
3
Bore with it
Bore with it
Bolt the work down to the lathe carriage carefully and securely; carriage bolts of several sizes are handy for this. Drive the bar between centres with a dog and feed the carriage. Run very slowly when boring cast iron, and keep the feed light so the bar does not spring.
Alatan diperlukan:
Mesin Pelarik Logam
Bolt kepala bulat leher segi empatBahan
3- 1 boring barPemegang Tempat
- 1 cutterPemegang Tempat
- 1 set screwPemegang Tempat
Alatan Diperlukan
8- Pemegang Tempat
- Pemegang Tempat
- Pemegang Tempat
- Pemegang Tempat
- Pemegang Tempat
- Pemegang Tempat
- Pemegang Tempat
- Pemegang Tempat
Bahan Blueprint Bersambung
10% Atribusi
Mild Steel Bar Stock Forged from an Ingot
oleh Forge
Moden
43
0
0
0
5
0
10% Atribusi
Tool-Steel Bar: Crucible Steel Drawn Out at a Cherry-Red Heat
oleh Forge
Tukang Besi
31
0
0
0
5
0
10% Atribusi
Lathe Cutting Tool: Ground to the Clearance and Slope for Each Metal (Machinery's Handbook, 1924)
oleh Forge
Alat Kerja Logam
6
0
0
0
1
0
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