I am looking for a pmdc motor in a small packaged 1.56" diameter, 5.1" long shaft to shaft. The operating specs are as follows
175 C, operate, 200 C survive
Kt (torque constant) approx 8.2 in-oz/amp
Ke (back emf constant) approx 6 V/krpm
no load rpm approx 5000-6000 rpm
The motor is...
bruv,
We are not casting to an ASTM spec. The best information I have gotten is from our casting house. The say the hardness should be 48 Rc. We had some parts come in at 67 Rc. The say it could be some separation during the casting process. We are going to anneal the parts before we...
I have some cast rotor and stator blades for a turbine-alternator system. The parts are investment castings. The blades come in as cast in 440C.
We must do finish machining on the parts. What is the typical hardness for as cast 440C part?
