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U-drilling skills on CNC machine tools

(1) The rigidity of the machine tool and the alignment between the tool and the workpiece are required to be high when the U-drill is used, so the U-drill is suitable for use on high-power, high-rigidity, and high-speed CNC machine tools.

(2) When using a U drill, the central blade should be a blade with good toughness, and the peripheral blade should be a relatively sharp blade.

(3) When machining different materials, inserts with different geometries should be used. In general, when the feed is small, the tolerance is small, and the length-diameter ratio of the U drill is large, the inserts with small cutting force should be used. If the aspect ratio of the U drill is large and the aspect ratio of the U drill is small, the grooved insert with a large cutting force is selected.

(4) When using the U-drill, the spindle power of the machine tool, the clamping stability of the U-drill, the pressure and flow of the cutting fluid must be considered, and the chip removal effect of the U-drill should be well controlled, otherwise it will be greatly damaged.It affects the surface roughness and dimensional accuracy of the hole to a certain extent.

(5) When clamping the U-drill, be sure to make the center of the U-drill coincide with the center of the workpiece and be perpendicular to the surface of the workpiece.

(6) When using a U drill, select appropriate cutting parameters according to different parts materials.

(7) During the test cutting of the U drill, be careful not to reduce the feed rate or reduce the speed at will, so that the U drill blade is damaged or the U drill is damaged.

(8) When the U drill is used, when the blade is worn or damaged, the cause should be carefully analyzed, and the blade with better toughness or wear-resistant should be replaced.

(9) When using a U drill to process stepped holes, be sure to start processing from large holes first, and then process small holes.

(10) When the U drill is used, pay attention to the sufficient pressure of the cutting fluid to flush out the chips.

(11) The inserts used on the center and edge of the U-drill are different, and must not be used incorrectly, otherwise the U-drill shank will be damaged.

(12) When drilling with a U drill, the workpiece rotation, tool rotation, and simultaneous rotation of the tool and the workpiece can be used, but when the tool moves in a linear feed mode, the most common method is to use the workpiece rotation method.

Ningbo Rongke Maite NC Tool Co., Ltd is China indexable drills manufacturers and indexable drills factory. Our products include U drills, modular deep hole drills, spade drills and inserts, detachable head drills and so on which keep improving constantly.If you are interested, welcome to visit our official website.

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