details about cnc turning machine?
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First Question:\n\nBallscrews offer better precision in CNC machines which makes production faster and less downtime.\n\nSecond Question:\n\nLM Guide such as ultra-high rigidity and load capacity, are suitable for installation in machine tools such as lathes, grinding machines and compact CNC machining centres, where space is often an issue. LM Guide’s compact dimensions allow for additional construction around the unit. This provides greater stiffness, improving rigidity of the machine, while ensuring the designated machine area remains the same.\n\nThird Question:\n\nThe first benefit offered by all forms of CNC machine tools is improved automation. The operator intervention related to producing workpieces can be reduced or eliminated. Many CNC machines can run unattended during their entire machining cycle, freeing the operator to do other tasks. This gives the CNC user several side benefits including reduced operator fatigue, fewer mistakes caused by human error, and consistent and predictable machining time for each workpiece. Since the machine will be running under program control, the skill level required of the CNC operator (related to basic machining practice) is also reduced as compared to a machinist producing workpieces with conventional machine tools.\n\nThe second major benefit of CNC technology is consistent and accurate workpieces. Today's CNC machines boast almost unbelievable accuracy and repeatability specifications. This means that once a program is verified, two, ten, or one thousand identical workpieces can be easily produced with precision and consistency.\n\nA third benefit offered by most forms of CNC machine tools is flexibility. Since these machines are run from programs, running a different workpiece is almost as easy as loading a different program. Once a program has been verified and executed for one production run, it can be easily recalled the next time the workpiece is to be run. This leads to yet another benefit, fast change-overs. Since these machines are very easy to setup and run, and since programs can be easily loaded, they allow very short setup time. This is imperative with today's Just-In-Time product requirements.
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Check this site out.\n\nhttp://www.usoe.k12.ut.us/curr/science/sciber00/8th/machines/sciber/lever3.htm
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Milling: Primary cutting motion is rotation of cutter\nShaping: Primary cutting motion is reciprocating motion of the cutting tool\n\nMilling: Genetrix and directrix are parallel\nShaping: Genetrix and directrix are perpendicular to each other\n\nMilling: Cutting done by multi-point cutting cutting tool or milling cutter (it is so called as it has a number of cutting edges or teeth) \nShaping: Single point goose-neck tool is used\n\nMilling: Rake angle of cutting edges (teeth) varies\nShaping: Rake angle remains constant throughout the whole cycle\n\nMilling:  T-slots, gears can be cut; V-groove cannot be done\nShaping: T-slots, gears cannot be cut; V-groove can be done
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Have you tried doing a search for "CNC machinist +prevailing wage +Connecticut" (ignore the double quotes)?  It should find the Department of Wage and Hour's listing for that career and location, I beleive.  I hope this helps.
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Some of the advantages are that a CNC (Computer Numerical Code [a computer controlled variant]) Mill can give incredibly accurate machined surfaces, edges and bolt patterns, and can reproduce that exact piece over and over, with barely a noticeable difference in one piece over another. Most differences come from irregularities in the stock or casting you want to machine. Mills can cut gears, ream key-ways or bore holes, make manifolds ... it goes on and on. There are different kinds of mills; there are the manually operated ones that take much care in setup and production of each piece, to single head mills with a battery of tools to do multiple operations, but only in one axis, to multi head, multi angle mills, which are like a legion on gnomes attacking a piece of metal, doing multiple operations at once, from shaping (all Mills can do this) one surface while another head is drilling and tapping holes, and yet a third is boring on another axis. The main disadvateges are that most mills in my experience are not very good at machineing round or spherical stock to a round or sphereical finished product, you use lathes for that. Another is the size, even a small mill can require about 3 meters square for setup and auxilliary equipment. Another drawback is the cost. These things aren't cheap and they use lots of electricity.
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Ok.  From the hint start by figuring out the ratio of wheel speeds\nCircumference of A =2*pi*10\nCircumference of C = 2*pi*25\nso C/A=2.5  ie A must go around 2.5 times to make C go around 1 time.\nThere are 2*pi radians to 1 revolution so 100 rev/min =200*pi rad/min.  A must go 2.5 times as fast as this or 2.5*200*pi=500 rad/min\nAccelleration is the derivative of velocity which means that we must integrate the angular acceleration to obtain the speed at any given point of time.\nIntegrating 1.6rad/s^2 with respect to time and setting velocity equal to zero at time equals zero we obtain angular velocity= 1.6*time elapsed (rad/sec).  Note that this speed is in "per seconds" and we need it to be in "per minutes" so we must multiply by 60 for the units conversion.\nThis gives us the angular speed in rad/min for any chosen passage of time.  We shall set this equal to the goal speed of 500*pi rad/min as mentioned above. So\n1.6*time elapsed*60 =500*pi\nSolving for time elapsed we obtain a time of 1.63 minutes.
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a CNC (computerized numeric controller) will generally connect with a machine tool such as a lathe or a mill, although they can be used with any type of machine that uses servo motors to drive an axis in a precision manner, such as a laser cutter, or a robbotic arm.
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it is a type of Machinery.
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1) Convert rpm to revolutions per second, by dividing rpm by seconds (so the minutes cancel).\n\n2)Convert revs per sec to radians per second, by multiplying rev/sec *2pi rad/rev (the revs cancel).\n\n3 Acceleration is in the form of distance/(time^2), so dividing radians per second by the time required to stop will give you the magnitude of acceleration over that time period. \n\nFor your example:\n\nrotational acceleration = \n            1000 rev/min *1 min/60 sec* 2Pi rad/rev *1/2 sec\n           =  52.4 rad/sec^2\n                 \n\nPart 2:"\n\nIf by distance you mean radial distance traveled by the tip of a spinning blade, then you know that \n\n1 revolution = 2*pi*r \n\nso to find the number of revolutions, multiply the distance by 1 rev/(2*pi*r)- the units of linear distance will cancel (see a pattern?).\n\n(distance) * 1rev/(2*pi*r) = number of revolutions
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A wooden dowel is placed on a lathe where it is rotated and ground down to form.  Then it is sanded, finished and polished.
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http://images.animationfactory.com/imagedir/animations/machines/factory/compressor_gears_revolving/compressor_gears_revolving_lg_nwm.gif
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Definately refer to a good service manual on these to the procedures and checks. A good chiltons book or something simliar is well worth checking out on all this. If you dont want to buy one most public libraries have them for you to check out. But Diff's have to be right or you will tear it up in just a few miles. Diff's do have different setup procedures. They are not all the same setup wise.
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this should get you what you need:\n\nhttp://www.autodesk.com/store/storeselect.htm
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Please see this website: http://www.ussteel.com/corp/sheet/hr/pmhsmill.htm
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Do visit the the following site and type the mechanism you want or the name of the machine\nhttp://www.howstuffworks.com\n\nother useful sites are\nhttp://www.answers.com\nhttp://www.wikipedia.org
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This Slitter/Rewinder is mainly used for primary slitter/rewinder of various plastic films such as BOPP, CPP, BOPET, BOPVC, BONY, BOPS.\nThe machine is designed to work with higher speed and precise control to get better quality product roll.\nAdditionally the machine allows higher effeciency operation with its particular mechanism and control system, by shortening of stopping time, product roll changing and operating condition changing, than those of conventional machines. Also the machine can be completed to CIMS, connecting with Host computer installed in central control room of the factory.\n1.Higher production effeciency\n1)Stopping time for product roll changing is just 1 minute to 2 minutes with fully automatic.\n2)Position setting for slitting width changing is just 3 minutes to 5 minutes with fully automatic.\n2.Automations\n1)Winding conditions (winding tension, contact pressure etc.) by computer.\n2)Slitting widths and numbers by computer.\n3)Unloading of product rolls, supplying and chucking of new cores, cross cutting and transferring of cut films and restarting.\n3.Getting better winding quality\nBecause of automatic setting of operating conditions, it avoids personal error of operator by operator.\n4.Better trim winding\nIt reduces tearing problems, because trims winding are done at right below of trimming positions.\n5.Human technological design\nAdvanced automation and working on the floor of the factory by operator is allowed safety work and reducing of his fatigue.
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Plastic Fabrication \n\n\nComponents are programmed in Auto-CAD for downloading to laser and routers.\n\nLaser cutters are outstanding for making fine detail, sharp corners, and smooth, polished edges - all with the greatest accuracy. Lasers cut with speed and efficiency. Narrow kerf and close nesting of parts produce maximum yield per sheet to minimize cost.\n\n \n\n\nSix-headed routers move with speed, precision and efficiency. The machine is capable of performing up to six operations on a single part.\n\nHigh capacity, high speed sheet cutting. All of our computerized saws produce perfectly square parts that are chip-free, smooth-edged and accurate in size - everything you need for hassle-free assembly.\n\n\n\n\nLarge capacity, high-speed diamond polishing machines handle loads up to four inches thick with a single pass. Exceptional polish has eliminated the need for sanding, flaming, and buffing.