What are the advantages of projection welding over spot welding

0 Answers   NIC,

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How is solution annealing carried out? What type of furnace is required?

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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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Can 1026 steel be welded?

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What does allotropic mean what does iron and steel have to do with it?

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Is there a possibility of inducing stress cracking in an insulated stainless road tanker vessel (20 tonne capacity) if the vessel is subject to rapid filling (10 tonne /hr) with liquid methane (-160 c) assuming the vessel is at ambient. If so, where could I obtain suggested cooling rates?

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Why post-heating is done in alloy steel welding?

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Throw some light on hardening abilities of metals?

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For the same part, it is possible to Specify the two different type of Hardness with same scall(EX-Quenching and tempering==>450 to 500HV30 & Hardening and Austempering 330- 380HV30)

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What is chemical composition and mechanical properties of IS 2004,Gr-3 and IS 305 AB-2?

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What is the function of washer?

0 Answers   NIC,

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What are the superalloys?

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