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Kennametal, Inc. is a manufacturer of high-performance cutting tools and engineered components used in the aerospace, defense, transportation and oil and gas drilling industries. Its customer base is global.
Sandvik Coromant is a Swedish company that supplies cutting tools and services to the metal cutting industry.. Sandvik Coromant is headquartered in Sandviken, Sweden and is represented in more than 150 countries with about 8000 employees worldwide. [1]
Birla Precision Technologies Limited is an Indian engineering company. [3] It was established in 1937, [4] and is a part of Yash Birla Group. Birla Precision Tech has 5 divisions, spread over 4 factories.
Gun drilling - The cutting tool is a fluted solid rod that has a hole bored down the center. Coolant is pumped through a hole in the inside of the drill. It flows back outside the drill, through the flute, bringing the chips with it. BTA / STS (Boring and Trepanning Association / Single Tube System) - The cutting tool is a tube.
Kennametal, a metal-working and tool company based in Latrobe, PA, USA, developed the first titanium carbide cermet with a 19 megapascals (2,800 psi) and 100-hour stress-to-rupture strength at 980 °C. Jet engines operate at this temperature and further research was invested on using these materials for components.
The free mass vibrates between the drill stem and the horn of the actuator to transmit the vibrations down the drill stem. The drill stem houses the drill bit, and the vibrations push the bit into the material. The repetitive impact on the drill stem by the free mass, creates stress pulses that transmit to the tip of the bit and into the rock.