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Q: Difference between lath martensite and plate martensite?
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What is a bistable pneumatic valve?

A Bistable Pneumatic Valve is typically a pilot valve that is a 3 ported 2 position detented valve. The valve retains is position during loss of power. this can be accomplished with a mechanical detent and 2 solenoids or a :mangna lath magnetic latch with a polarity sensitive coil. Positive opens and negative closes or vice versa.


What is the function of a tool room lathe?

There are a number of different types of lathe. We usually separate them out by whether they are for wood or metal (and other stuff like plastic). The things is, they all do essentially the same thing: they turn a workpiece between two centers and allow the user to apply a tool to remove material from the rotating mass of "stuff" being worked, or, as is said by those involved, turned. The earliest lathes did thi - turned the work so a tool could be used on that material. And we do it pretty much the same way today. The metal lathe most often has a chuck on the headstock (the driven end) in which work can be clamped, and this affords an "open end" on the material so it doesn't have to be supported at the "tail end" of the lathe to work the material. (You aren't turning between centers.) A number of metal lathes are computer controlled (the so-called computer numeric controlled or CNC machines), and they can do a lot of things very quickly and with a high degree of accuracy. And all if it is repeatable. Need some pistons made for your engine? We can do that. Many wood lathes have a faceplate attachment that a wood turner can affix a chunk of wood to so he can turn, say, a bowl. That way the wood can be supported on just the one end and the bowl can be hollowed out. There are lots of wood turners out there, and they make some fabulous stuff. We often say, "I'm turning (something) on a lathe." It could be a wooden bowl to mix pie dough in or a rolling pin for rolling out that pie dough. Certainly it could be any one of a zillion machined parts for aircraft or automotive applications, or just about anything else. There are a lot of things we use every day that have been turned on a lathe, though many of them may not be where we can see them, like a number of engine parts in a car. The largest part of the lathe (almost always) is the bed of the machine. It is the "frame" onto which the headstock and the tailstock are fastened. The headstock has in it the rotating (driven) spindle on which a chuck or faceplate can be fastened. On the bed, the top of it is generally machined to create the ways on which the tool rest or (in the case of a metal lathe) the carriage(with its cross slide and tool post) can sit and move precisely along the length of the bed. There are some other parts and a host of attachments to the lathe. Pictures may very well help you see things. Links are provided to the Wikipedia articles on the lathes, and a link is provided to some "lathe" video clips put up on YouTube. There are a lot(!) of short posts there on lathe work. Check a few out.