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  2. Tumbler knife sharpener review, after weeks of testing - AOL

    www.aol.com/news/tumbler-knife-sharpener-review...

    Tumbler Knife Sharpener $129.00 at Amazon. Tumbler Knife Sharpener $98.00 at Tumbler. The Tumbler knife sharpener ($129) is a manual knife sharpener with two components: a two-sided rolling disc ...

  3. Welding - Wikipedia

    en.wikipedia.org/wiki/Welding

    Non-consumable electrode processes, such as gas tungsten arc welding, can use either type of direct current, as well as alternating current. However, with direct current, because the electrode only creates the arc and does not provide filler material, a positively charged electrode causes shallow welds, while a negatively charged electrode ...

  4. Tungsten - Wikipedia

    en.wikipedia.org/wiki/Tungsten

    Tungsten electrode used in a gas tungsten arc welding torch Tungsten filament is used in incandescent lightbulbs, where it is heated until it glows Because of its conductive properties and relative chemical inertness, tungsten is also used in electrodes , and in the emitter tips in electron-beam instruments that use field emission guns , such ...

  5. Orbital welding - Wikipedia

    en.wikipedia.org/wiki/Orbital_welding

    Orbital welding has almost always exclusively been carried out by the Tungsten Inert Gas (TIG / GTAW) technique using non-consumable electrodes, with additional cold-wire feed where necessary. The easy control of heat input makes TIG-welding the ideal welding method for fully orbital welding of tubes with specialist orbital welding heads, that ...

  6. High-intensity discharge lamp - Wikipedia

    en.wikipedia.org/wiki/High-intensity_discharge_lamp

    High-intensity discharge lamps (HID lamps) are a type of electrical gas-discharge lamp which produces light by means of an electric arc between tungsten electrodes housed inside a translucent or transparent fused quartz or fused alumina arc tube. [1] This tube is filled with noble gas and often also contains suitable metal or metal salts.

  7. Electron-beam welding - Wikipedia

    en.wikipedia.org/wiki/Electron-beam_welding

    Tungsten cathodes allow emission current densities about 100 mA/mm 2, but only a small portion of the emitted electrons takes part in beam formation, depending on the electric field produced by the anode and control electrode voltages. The most frequently used cathode is made of a tungsten strip, about 0.05 mm thick, shaped as shown in Figure ...

  8. List of welding processes - Wikipedia

    en.wikipedia.org/wiki/List_of_welding_processes

    Continuous consumable electrode and shielding gas: Industry Gas Tungsten Arc Welding [4] 141: GTAW Nonconsumable electrode, slow, high quality welds Aerospace, Construction (piping), Tool and Die Plasma Arc Welding: 15: PAW Nonconsumable electrode, constricted arc Tubing, instrumentation Shielded Metal Arc Welding [5] 111: SMAW

  9. The 9 Best Sale Items at Costco Right Now - AOL

    www.aol.com/9-best-sale-items-costco-200246923.html

    $5.50 off each 24-pack of 16.9-ounce bottles. If you're tackling Dry January, San Pellegrino sparkling mineral water is a great way to mix things up.The 24-pack of 16.9-ounce bottles is $5.50 off ...

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