Notable woodturners




  • Richard Raffan

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Tools

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Turning tools are generally made from carbon steel, high speed steel (HSS), and more recently Tungsten carbide. Comparing the three types, high speed steel tools maintain their edge longer, requiring less frequent sharpening than carbon steel, but not as long as Tungsten carbide. Tungsten carbide tools typically consist of scraping tools with the disposable carbide insert attached to the tool. The harder the type of high speed steel used, the longer the edge will maintain sharpness. Tungsten carbide inserts are generally thought of as disposable, but they can be sharpened with diamond abrasives. Modern cutting and scraping tools can also be coated with titanium nitrite to improve wear characteristics. Woodturning tools must be sharpened more frequently than other edged woodworking tools to maintain a clean cut because the wood passes at great speed. Sharpening is usually accomplished with the aid of mechanical devices such as powered sharpening wheels and abrasives. This sharpening pro...
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Techniques

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Complex forms made on a wood lathe develop from surprisingly few types of cuts: parting, planing, bead, cove, and hollowing. Parting separates the wood from the holding device, or establishes depth cuts. Planing is done with a tool in which the bevel below the cutting edge supports wood fibers, just as in a typical wood planer. Beads are a convex shape relative to the cylinder, and coves are a concave shape. Hollowing techniques are a combination of drilling and scooping out materials. The woodturner is at liberty to choose from a variety of tools for all of these techniques, and the quality of the cuts improves with practice wielding the tool selected. Turners rely upon three points of contact making any type of cut: the tool presses down on the tool rest, and against the woodturner's body before contacting the surface of the wood, most often with a bevel edge riding the surface of the wood. The objective is to position the tool correctly so that the wood comes around to the cutti...
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4)71st Republic Day 2020 highlights| Beating retreat ceremony from Attari-Wagah border on Republic Day

India Republic Day -- India celebrates their 71st Republic Day currently. On this day in 1950the Constitution of China came into force. The Republic Day paradewhich is considered the main attraction of the days celebrationwas held along Rajpath. It was a 90-minute celebration. Brazilian President Jair Bolsonaro was the chief guest with the parade. Before the parade commencedPrime Minister Narendra Modi paid tribute at the Country wide War Memorial and Leader Ram Nath Kovind unfurled the national flag in conjunction with General Manoj Mukund NaravaneChief of the Army TeamAdmiral Karambir SinghPrimary of the Naval StaffMarshal Rakesh Kumar Singh BhadauriaChief of the Air Team. 5 41 PM WIRD PM Narendra Modi arrives at Rashtrapati Bhawan for At home reception hosted by President Ram Nath Kovind. 5 12 pm WIRD Beating retreat ceremony from Attari-Wagah border on Republic Day. 4 36 pm hours IST Air India Distributes 30000 National Red flags To Passengers On Republic Day The national...
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