Define what is the difference between plaster used in gold investment casting and ceramic used in the process of investment casting of automobile engine parts and turbine blades etc. When both are used in the lost-wax method?

946

What is select miller cutter?

1097

Does the extrusion process for a355 and a356 alloy effect on the amount of impact energy?

943

Is there any way through hardening and anodizing some type of aluminum, it could be as hard as steel? I have hardened steel rollers that run up and down on a ramp along with spring pressure. Alternatively, if you are familiar with snowmobiles, the rollers run on the helix on the secondary clutch.

1091

When using mercury to recover very, fine gold from ore, what is the best way to separate the gold laden mercury from the ore?

951

How is solution annealing carried out? What type of furnace is required? Does one need to be heat in a salt bath?

855

How would a salt and water solution clean a penny but a vinegar and salt solution will not clean a penny? What is the cause of this?

1024

What type of grinding is used for harder materials?

1046

Discuss steam engines. What is its overall efficiency ?

985

Why cutting fluid is used in machining?

922

what is meant by hardening ability of metals?

959

what is proeutectoid ferrite and cementite?

1162

any input on how to spec out(if possible) a larger grain structure(3/8" or larger) on a Al 6061 forging material.

2268

Discuss the basic functionioning of air conditioner.

1010

what is wedge load test method . what is offset method .

1820