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Q. Describe Direct extrusion?
• Direct extrusion, also known as forward extrusion, is the most common extrusion process.
• It works by placing the billet in a heavy walled container.
Fig Direct extrusion
• The billet is pushed through the die by a ram or screw. There is a reusable dummy block between the ram and the billet to keep them separated.
A 2 Kg mass is suspended in a box by a spring as shown in figure. The box is put on a platform having vibration y = 0.8 sin 6t cm. calculate absolute amplitude of mass
Interesting history of IGES: In the year of 1979, events took place that catalyzed the CAD vendor and user community to make the first national standard for CAD data exchange.
IGES application protocol: In the year 1977, the three authors of The Initial Graphics Exchange Specification were identified collectively for their contributions to the growt
Derive the mathematical Heat Conduction equation through a composite wall. Determine Thermal contact Resistance ?
Types of Holons The four major types of holons are: Order holons Product holons Resource holons Staff holons Considering the cooperative aspect of the
how to calcluate & derive the equation
There are various refrigeration systems employing various methods. State any seven (7) refrigeration systems, mention the method(s) employed to attain low temperatures, and state a
He a t: Sol: Heat can be energy transferred across the boundary of a system because of temperature difference between system and surrounding. The heat is transferred by th
Stellite This is an alloy of Co as 40-60%, Cr as 25-35%, W as 4-25% and C as 1-3%. This is a cast alloy comprising C, W, and Cr in Cobalt matrix. Its major characteristic is l
An 8 kN.m moment is applied at the end of a block fixed into the ground as illustrated in thefigure below. The moment vector (double arrow head representation) acts in line with th
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