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The Difference Between Conventional Milling and Climb Milling

Milling machines are used across the U.S. and have made w machinist’s life substantially earlier. You can use a milling machine to produce flat or irregular surfaces. You can also drill, bore, cut, and produce slots with your standard spindle machine with a swiveling head. The two most common rotation types when it comes to milling your materials are table fed climb and table fed conventional. It’s broken down fairly simply as in conventional milling fees up and climb milling feeds downward. The major difference between the two is the rotation of the cutter direction.

Conventional milling is for lack of better terms, the “old-school” way of doing things. It takes a much more traditional approach when cutting because the play between the lead screw and the nut is eliminated.

Climb milling is becoming increasingly more popular with a new generation due to its preferred methods of compensating for the backlash eliminator.

Conventional milling has the tendency to cut faster but is hard on tools. This will result in tool wear and decrease the lifespan. There is more rub at the beginning of this process. With a zero-width chip and heat diffusing into the workpiece it increases the hardening of the tool. The upward force creates a more intricate work holding. Climb milling starts off at the maximum width of the chip and decreases the heat output that will transfer to the tool. This downward force provides a cleaner shear plane with less rub and increases tool life. In general, climb milling is less complex for all work holdings. However, though climb milling is the preferred way to machine parts, there are times when conventional milling is the necessary milling style. One example is if your machine does not counteract backlash. In this case, conventional milling should be implemented. In addition, this style should also be utilized on casting, forgings, or when the part is case hardened.

At the end of the day, the choice is yours on how you prefer to mill your pieces, and if you reside in the mid-Ohio, Mansfield, and Richland County regions, Amerascrew will be happy to assist you with all of your CNC, milling, and assemblies. Just give us a call at (419) 522-2232.

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