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Q. Can you explain Corners and fillets ?
Corners and fillets
The intersection of the surfaces in casting must be smooth and forms no sharp angles. For this, the external and intern corners of patterns are suitably rounded. They are called round corners and fillets respectively.
Rapping or shake allowance
To take pattern out of the mould cavity it is slightly rapped to detach it from the mould cavity. Due to this, the cavity in the mould increases slightly so the pattern is made slightly smaller.
Q. What do you mean by Alloys? Metallic materials that contain alloying elements, including chromium (Cr), cobalt (Co), Columbium or niobium (Cb or Nb), copper (Cu), iron (Fe),
Explain Wilson HArtnell Governor
All shell and head joints shall be double-welded butt joints with full penetration. In cases where double welding is impractical, the root pass shall be made by the GTAW process.
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Degre e of Super Heat: It is difference between the temperature of superheated steam and saturation temperature resultant to the given pressure. So, the degree of superhea
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