Fundamental of metal casting, Electrical Engineering

Fundamental of Metal Casting:

Fundamental of Metal Casting : Casting process is based on the property of a liquid to take up the shape of vessel containing it. Molten metal poured into a mould flows into the corners and fills all the voids. When metal solidifies it takes the shape of mould but not exactly the same because solid being. denser there is reduction of volume (2  to  9%). For obtaining correct dimensions, provision needs to be made for shrinkage of metal. Hollow components can be produced by inserting a core into the cavity in the mould.

Sand Casting : Sand castings are porous enough and, therefore, cannot be used for pressure sight vessels. Structure obtained by sand casting is loose and hence not stranger than wrought products. As the grains are not close, the casting has lower density and poor strength. Sand casting has poor ductility.

Shell-mould Casting : This is variant of the resin bonded sand technique for casting steel, iron or non-ferrous alloys.

The mould is formed from a mixture of fine sand (100 - 150 mesh) and a thermosetting resin binder that is placed against a heated metal pattern, preferably made of grey cast iron.

Posted Date: 2/8/2013 5:03:18 AM | Location : United States







Related Discussions:- Fundamental of metal casting, Assignment Help, Ask Question on Fundamental of metal casting, Get Answer, Expert's Help, Fundamental of metal casting Discussions

Write discussion on Fundamental of metal casting
Your posts are moderated
Related Questions
Q. Explain Transfer of Risk? In case of this method, risk is transferred to some other person or organization. In other words, under this method, a person who is subject to ris

Q. Consider the MOSFET circuit with variable voltage, with RD = 2k and VDD = 12 V. The static characteristics of the n-channel enhancement MOSFET are given in Figure. (a) Drawt

Give the properties and application of brass. Brass - It is an alloy of copper and zinc with 60 percent copper and 40 percent zinc. Its electrical resistivity of Brass is 7.0

Determine about the satellite navigation In motor vehicles system is known as satellite navigation (sat nav). On board computer contains pre-stored road maps. Vehicle's exact

Cross-subsidy: The policy gives clarity on determination of cross-subsidy and additional surcharges for open access to consumers and lays down a timeframe for rationalization

Q. Draw and explain diode clipping circuit ? A diode clipping circuit can be used to limit the voltage swing of a signal. Clipper circuits are used to clip a portion of the w

What is segmentation? Segment memory addressing divides the memory in several segments. All of these segments can be seen as a linear memory space. All of these segments are ad

Compare with memory The contents  of the memory  of the memory  location  pointed by HL  register pair are compared with the  contents of the accumulator. The  instruction f

Q. For the networks shown in Figure, determine the transfer function G(s) = V o (s)/V i (s).

How to build a 6 bit comparator?