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 Categories >> Engineering >> Metallurgy
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Question Asked @ Answers Views     Select
Why same casting has different hardness and machineability properties? One spot it is found hard for machining and another spot soft? It is FG 260 grade for Cast Iron.    4  4665
i want to go to US for Bachlore of computer science, I didn't appeared for SAT. my ielts scores are too low only 5.5 band and I am confused if VISA OFFICERS will ask why u hadn't given SAT. what i have to answer pl suggest?    0  626
any input on how to spec out(if possible) a larger grain structure(3/8" or larger) on a Al 6061 forging material. novellus   0  614
I currently use 17-7 PH stainless which is hardened to condition CH after forming. raw matl is .1.75"X .12" X .008". Its main usage after hardening is silicon wafer retainer where it's contantly cycled up and down to putin and remove wafer after 40-60 sec process at 400C temp. At this high temperature this part seemed to deform after a a couple of hundred wafer which is what it was designed for in the first place. THere is a proposal to go to a different material to increase lifeline of this part. My question is..... can 321 SST be a plugin replacement. I know this has a higher temp rating but how about its forming characteristics, will it have spring properties, and wont become brittle after prolonged exposure to 400C. novellus   0  767
what are the ores of copper?    4  2298
i m going to give an interview for iocl on 5th aug . pls tell me what questions can be answered from metallurgical prospect iocl   0  1321
What metal would be better suited for heat transfer, reliability, and cost...??? I'm currently using Aluminum for a 'hot-wedge'.    3  2100
Please send me the comparision of Mils Steel Specification as per BS EN 10130 & IS 2062    1  1577
what happens when a EM wave is transmitted    1  2411
what is the cause of attenuation due to powerloss    1  1935
What are the superalloys used for?    2  2182
What are the superalloys?    3  4685
Why is non-destructive testing necessary?    9  6782
What kinds of NDT methods are available?    9  7712
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Un-Answered Questions
 Question Views   Select
any input on how to spec out(if possible) a larger grain structure(3/8" or larger) on a Al 6061 forging material. 614
What is the difference between DI pipes, Cast Iron pipes, LA Pipes, SW pipes, SWR Pipes, RCC hume pipe, RCC spun pipe ? What are their IS codes and applications ? 2347
Witch type curome oxide in ms matle? 753
difference between sand casting and shell casting 14
white rust formation over zinc plated and passivated fasteners during CED coating. WHY? 2456
What is the chemical composition of FCVS350 ? 1729
What is equivalent is 2004 cl 5 322
what is wedge load test method . what is offset method . 224
Please send the Sundar TVS Motors placement papers to this mail id. 548
what should be the exact suction capacity for 3 to 5 mt capacity lead rotary furnace and length of duct line for proper suction for same 667
Why are the superalloys sometimes subjected to secondary melting processes? 744
what are different grades of mild steel available for making machine structure (housing) 1321
dear sir i need some information about prevent eutectic carbide network(as cast) formation in 12% cr steel casting by another alloying element(my analays: c=1.2-1.4 cr=11-13 mo=0.2-0.4 ni=0.2-0.4 )or break network carbid after formation in solidification by heat tretment please help me my email adress: 869
sir please send me previous question papers on metallurgy at .....thank you 569
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