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Stellite alloys are a family of completely non-magnetic and corrosion-resistant cobalt alloys of various compositions that have been optimised for different uses. Stellite alloys are suited for cutting tools, an example is Stellite 100, because this alloy is quite hard, maintains a good cutting edge at high temperature, and resists hardening and annealing.
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. [2] General office of predecessor firm Vanadium Alloys Steel; large lumps of coal in foreground
Alumina, or aluminum oxide, is also extensively used in the production of cutting tools due to its exceptional hardness and wear resistance. [2] Alumina cutting tools also have high thermal conductivity, which helps dissipate heat generated during cutting, minimizing thermal damage to both the tool and the workpiece. [ 3 ]
A 15-year-old girl opened fire in the Abundant Life Christian School in Madison, Wisconsin, on Monday, killing a teacher and a student and wounding six others at the school she had attended ...
A magnitude 6.2 earthquake rattled a region of southwest Mexico on Sunday, the U.S. Geological Survey said.There were no immediate reports of casualties or damage. The tremor was about five miles ...
The coefficient of thermal expansion of cemented tungsten carbide is found to vary with the amount of cobalt used as a metal binder. For 5.9% cobalt samples, a coefficient of 4.4 μm/m·K was measured, whereas 13% cobalt samples have a coefficient of around 5.0 μm/m·K.
The Centers for Disease Control and Prevention says there is a reported spike in human metapneumovirus (HMPV) in China, and they are monitoring it closely.
A partially disassembled Curta calculator, showing the digit slides and the stepped drum behind them Curta Type I calculator, top view Curta Type I calculator, bottom view. The Curta is a hand-held mechanical calculator designed by Curt Herzstark. [1] It is known for its extremely compact design: a small cylinder that fits in the palm of the hand.