Author: niranjan


Abstract
Hot machining is the process which is used for easy machining and to eliminate the problems of low cutting speeds, feeds and heavy loads on the machine bearings. This problem arises when machining process is being done on the new and tough materials. The basic principle behind this process is the surface of the work piece which is to be machined is to be pre heated to a temperature below the re-crystallization temperature. By this heating the shear forces gets reduces and mach ....etc

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The new non-lethal weapon using the world's hottest chili. Measuring more than 1,000,000 Scoville units, the bhut jolokia. The chili weapon, a tear gas-like hand grenade stuffed with bhut(ghost) jolokia chilli peppers to immobilize rioters and terrorists without killing them and can able to immobilize suspects and force terrorists out of hiding. The active ingredient in chillis is Oleoresin Capsicum (OC), a complex mixture of organic compounds. Aficionados rate the hotness of chills using the Scoville scale, which measures the amount of dilu ....etc

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Definition

Hot Isostatic Processing (HIP)
Application of high temperature and high pressure to remove internal porosity, consolidate powder for alloys, and diffuse bond.
Materials that can be HIPped
Titanium, beryllium, steel, aluminum, superalloys


Overview
Equipment used
Applications
Powder consolidation
Healing of casting defects
Diffusion bonding
Aerospace application
Pressures reach 200 Mpa
Temperatures reach 2000 degrees Celsius
Size of pressure vessel ranges from smaller than 4X12 up ....etc

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presented by:
Mudit Rajput



Abstract
CFD Modelling of Hot-Machining Operation is a machining method conducted on conventional machine tools in which work piece is preheated before cutting operation to become softer and thereby to reduce its shear strength. Here in Final Year B.Tech Project work this work is assigned to me for understanding the Hot-Machining prospects. In our Work the job to be machined is of High Manganese- Steel. As we know the machining of these materials has always been a great challenge. ....etc

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ABSTRACT


Hot isostatic processing (HIP) is the latest method to produce open porous materials, such as ceramics or metals. In this review paper, features and applications of HIPed porous materials are described. Sintering behavior under high pressure gas is also discussed in order to understand how porous materials are obtained by this method. HIPed porous materials have higher open porosity, higher mechanical strength, narrower pore size distribution and higher fluid permeabili ....etc

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please help to get information about hot machining... ....etc

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