​Meanwhile, for down cut (climb) milling, the width of cut at the point of entry is the thickest, and as such reduces this abrasive phenomenon that is generally a weak point of cutting tools. However, if the cutting edge is too sharp or the tool material is not tough enough then fracturing can occur. Note also that if the machine has backlash then the workpiece can tend to be pulled or tugged on entry and this can also cause fracturing of the cutting edge.

Down cuttingmeaning

For up cut milling, the cutting edge of a face mill cutter enters a workpiece at 0mm depth of cut (contact point) and moves while rubbing the workpiece at first. Then, when it reaches a certain point, the cutting edge starts to machine the workpiece. The area between the contact point and the cutting start point is the area of rubbing, here the force acting on the flank face sharply increases, causing flank wear on the cutting edge as in the figure.

Insert Grade : GC2220 (M15 -M30) TICN+AL2O3+TIN CVD-coated gradient sintered carbide with Inveio coating technology optimized for semi-finishing to roughing where higher wear resistance is needed compared to GC2025.

Down cuttingerosion

DNMG T-Max® P Turning Inserts. First choice for general turning, from small components to heavy machining. ​​Ideal for austenitic and duplex stainless steel offering improved plastic deformation resistance and long tool life. This grade features Inveio™ coating technology for the highest wear resistance. Benefits • Plastic deformation resistance for increased tool life and reduced cost per component • Increased productivity

When choosing a method to machine, up cutting or down cut milling (climb milling) is decided by the conditions of the machine tool, the milling cutter and the application. However, it is said that in terms of tool life, down cut (climb) milling is more advantageous.