A 950-ton steel tunnel-boring machine named Harriet that carved out 2 miles of earth for a light rail line headed to Los Angeles International Airport will be dismantled underneath South Los Angeles ...

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LOS ANGELES (CBSLA) — Two tunnel-digging machines that will bore through the ground to create a path for the Metro Purple Line subway under Wilshire Boulevard were unveiled today. The tunnel-boring ...

Kennametal’s asymmetric line-boring system increases machining robustness, process speeds, and bore quality, and reduces tool maintenance and handling. Precision is vital in manufacturing many ...

Boring is the method used to enlarge a hole that has already been cast or drilled via a single-point cutting tool or a boring head that contains multiple such tools. The hole created by a boring ...

Harriet was not quite ready for her close-up. The 950-ton tunnel boring machine named after African-American abolitionist Harriet Tubman was hoisted about five feet off the ground Monday. But Metro ...

The state-of-the-art boring machine will dig the largest single-bore transit tunnel in the world, nearly 54 feet in diameter. It's capable of digging 30 to 40 feet a day, according to VTA. "There's no ...

Can small shops succeed with advanced machine tools and software? If so, how do they do it? Read on to learn the strategies that have helped Midway Swiss Turn, our 2025 Top Shops Honoree in Shopfloor ...

A TBM is used to excavate tunnels in a circular cross section through a variety of geologies. It is manufactured to bore through hard rocks or sand layers and almost anything in between. Engineer ...