Can you explain the refrigeration cycle?

0 Answers   Essar,

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Does case harden steel properties detoriates over time? Especially for guns, parts like bolt carrier, the brand new parts has been kept for 10 year and properly oiled. I am worried about its surface hardness to take the blow during firing.

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Will aluminum alloy like 380 or 356 settle? Meaning while in “liquid form” above melting point will the heavier elements like copper, fe, silicon, zinc etc. Settle to the bottom of the liquid/molten aluminum after a period.

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What kinds of NDT methods are available?

10 Answers  

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What are the advantages of projection welding over spot welding

0 Answers   NIC,

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How do you classify shapers?

0 Answers   Essar,

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Any body know when the medicals are starting for the BSI P.O , if anybody got any call letter please let me know

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What is the minimum temperature for stress relieving of astm a 519 gr.4130 material and please tell us where we can find the location.

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What is or what characterize the thermodynamic state of metal (structure of metal)?

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Define what is the chemical composition of ceramic and define what is its atomic density?

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Define rivets.

0 Answers   Essar,

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what is the hardness of ohns before heat treatment process and hardness of en series before heat treatment process

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