Machining center with 4MM and 6MM white steel reamer, 45 steel material, spindle speed and feed speed settings how much ah!
Reaming speed can not be high, there are generally dozens of turns on it, especially after the material has been quenched and tempered, itself has a certain degree of hardness. When reaming, it is best not to use automatic feed, that is easy to make the hole out of the hole to form regular spiral lines, just like thread. When reaming, add some daily vegetable oil, so that the hole will be very light. The margin of the hole generally has a 0.1~0.2mm on the line, the margin is too large, it is easy to break the reamer, twisted out of the hole is not only light.
On such a small hole with white steel, with steel spiral machining cutter Wu did not know, processing thousands of hole can not use a knife, also used a certain blind hole you don't end up blowing again twisted twisted down will be a good point, cutting knife is mainly iron row is not good, or high speed feed slow knife wear quickly........................ there are.....
What size of allowance do you have?. You seem to have a small amount of feed. You use a thinner reamer and do not know how large the main deflection angle of your reamer is. If your reamer is machined to the end, there is a slight effect and the force is complex. When the chip is in a disc shape, it is difficult to discharge, and the friction between the wall and the hole is severe, so that the tool can be easily broken.It is recommended to reduce the amount of cutting and wear a certain main angle of deviation. If the aperture is relatively large, it is recommended to carry the knife often.Try using a small cutter instead of a reamer. Or buy a screw reamer directly.
