Lathe Operations: Facing

Facing Operations Facing is the process of removing metal from the end of a workpiece to produce a flat surface. Most often, the workpiece is cylindrical, but using a 4-jaw chuck you can face rectangular or odd-shaped work to form cubes and other non-cylindrical shapes.

When a lathe cutting tool removes metal it applies considerable tangential (i.e. lateral or sideways) force to the workpiece. To safely perform a facing operation the end of the workpiece must be positioned close to the jaws of the chuck. The workpiece should not extend more than 2-3 times its diameter from the chuck jaws unless a steady rest is used to support the free end. Cutting Speeds

If you read many books on machining you will find a lot of information about the correct cutting speed for the movement of the cutting tool in relation to the workpiece. You must consider the rotational speed of the workpiece and the movement of the tool relative to the workpiece. Basically, the softer the metal the faster the cutting. D…

Difference Between Memory and Data Storage


The terms memory and information stockpiling are frequently befuddled. Both are means by which a machine keeps information used to perform undertakings. As being what is indicated, both are measured in bytes. Nonetheless, memory and information stockpiling are two different elements, and the terms ought not to be traded. Memory is ordinarily alluded to as Random Access Memory (RAM), additionally incorporates Read-Only Memory (ROM). Information stockpiling is additionally called hard plate space.

The primary distinction in the middle of memory and information stockpiling is their capacity. Capacity is utilized to hold the entire machine's data. Information put away in the hard circle is perpetual and is not lost when the machine is turned off. At the point when a record is erased, just the right to gain entrance to that document is uprooted, not the data itself. This is the reason machine masters have the capacity restore data onto a machine despite the fact that such data has been erased. To for all time erase a record, the hard circle must be arranged or overwritten. It is even conceivable that despite the fact that a plate has been designed, a master can at present view the data. There are projects accessible that compose babble information over the plate data, making data indistinguishable to anybody.

Memory, then again, empowers the machine to get to documents from the hard circle rapidly. At the point when a machine runs an application, for example, a saying processor, the focal preparing unit (CPU) recovers the information from the hard plate and burdens it in the RAM, considering brisk access. The measure of RAM a machine has restricts what number of projects can be run on the double. Since data put away on RAM is lost when the machine is turned off, sparing a document in such an application composes the data to the hard plate so it is not lost.

ROM is utilized to store boot firmware, the data the machine uses to fire up. The boot firmware advises the machine to check all its frameworks and equipment and opens the machine's working framework. ROM likewise contains data that keeps the machine, and its different equipment connections, working appropriately. Not at all like RAM, is data put away in ROM not lost when the machine is turned off.

Memory and information stockpiling can cooperate, be that as it may. At the point when the machine does not have enough RAM to backing its techniques, it changes over a part of the hard plate into virtual memory. Virtual memory acts the same way RAM does. In any case, since it is a piece of the hard plate, utilizing virtual memory eases the machine off. A path around this is to add memory to the feeble machine. There are likewise items known as removable stockpiling, some of which are thumb drives and minimized plates (CDs), which permit clients to store documents and move them from machine to machine.


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