Studies on the cooling minimum quantity and conventional cooling at hardened steels in grinding process

Process Optimization for Machining of Hardened Steels

Strong Bainitic Steels by Continuous Cooling Transformation

Using metallurgical models, three steels were designed to obtain carbide-free bainitic structures in the as-rolled condition. Experimental castings were hot-rolled in a pilot mill and their austenite decomposition kinetics were measured using dilatometry. Tensile and Charpy impact properties were measured and the microstructures were characterised using X-ray diffractometry, optical and scannin...

The cooling process in gas quenching

Gas quenching is a relatively new process with several important advantages, such as minimal environmental impact, clean products, and ability to control the cooling locally and temporally for best product properties. To meet the high cooling rates required for quenching, the cooling gas must flow at very high velocities, and such flows are highly turbulent and separated. Consequently, there is...

Effectiveness of an intravascular cooling method compared with a conventional cooling technique in neurologic patients.

Fever is common among neurologic patients and is usually treated by antipyretic drugs and external cooling. An alternative method for temperature management may be an intravascular approach. The aim of the study was to compare the effectiveness and the therapeutic costs of this new method with conventional treatment in neurologic patients. Twenty-six patients who suffered from subarachnoid hemo...

Simulation Studies of Ionization Cooling

A μ-μ collider must compress the beam phase-space volume by a factor of ~10 to obtain high luminosity, and this beam cooling must occur before μ-decay. In this paper we present simulations of ionization cooling which explore the various conditions needed for cooling to collider conditions. Cooling by large factors is demonstrated and directions toward complete cooling scenarios are discussed.