Spur gear modulus 3, tooth number 12, addendum diameter 40, cross tooth number 2, cross tooth distance 13.789-0.03~-0.05, milling machine should be how deep?
First of all, must meet the tooth distance should be 13.789-0.03~-0.05 size; multiple feeding gear milling, measurement; calculation found that the top diameter of your teeth 40 "problem", a smaller (the calculation result is more than 41, calculated in accordance with the standard parameters), some parameters of your gear is non standard value.If only one gear is machined, or the gear blank is not redundant, it must be fed and measured several times to ensure the span of teeth (normal line length). After qualified, the amount of feed is fixed, and the gear at the back of the machine is machined.
After calculation, the cutter is cut down 5.81mm from the top of the tooth circle (28.384 of the diameter of the root circle)For reference. Welcome questions.
The gear parameters, the gears will undercut (generating processing). As you mentioned, profile milling is used, but in use, the root transition curve may interfere and cannot mesh properly.