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A part's-eye view of a boring bar. Hole types: Blind hole (left), through hole (middle), interrupted hole (right). In machining, boring is the process of enlarging a hole that has already been drilled (or cast) by means of a single-point cutting tool (or of a boring head containing several such tools), such as in boring a gun barrel or an engine cylinder.
His development of a machine tool for boring cast iron cannons presaged the accurate boring of cylinders for the first Watt steam engines. He also improved the air supply for the blast furnace using a new design of bellows , and was the first to use wrought iron in canal barges.
One of the boring machines used for the Channel Tunnel between France and the United Kingdom. A tunnel boring machine (TBM), also known as a "mole" or a "worm", is a machine used to excavate tunnels. Tunnels are excavated through hard rock, wet or dry soil, or sand, each of which requires specialized technology.
The machine cost $1.5 million to construct and was named after the company president at the time, Stan Anderson, who was given a similar nickname due to his height of 6 ft 3 in (1.91 m). [1] The rig was originally built to meet the demand for a more powerful mobile drilling rig, specifically a demand for rigs capable of boring up to 260 feet ...
The Tuen Mun - Chek Lap Kok TBM otherwise known as Qin Liangyu or more formally, the Mixshield S-880 was the world's largest tunnel boring machine launched in June 2015 by Herrenknecht in Germany. [1] [2] The TBM was used to drill a 5 km tunnel connecting Tuen Mun to the Hong Kong International Airport, part of the Tuen Mun–Chek Lap Kok Link ...
1900 Beloit builds cylinder machine to operate at 75 FPM and fourdrinier machines operating 400 to 500 FPM. 1910 Beloit builds a cylinder machine to operate 300 FPM and fourdrinier machines to operate at 600 FPM. 1916 Elbert H. Neese joins the company. 1919 Beloit builds the first fourdrinier machine to run faster than 1000 FPM (305 M/M).