CNC lathe thread compound cycle programming example
60,55,30,29, you this is 60, Δmin for the minimum cutting depth, thousands of carry, that is to say 1mm to write 1000, assuming that we here the minimum cutting depth with 0.05mm, that is 50, (the smaller the minimum cutting depth
That is, finishing 3 times, r is the chamfer of the thread, where the chamfer refers to the thread when the retreat from the slash exit, the general thread without this necessary, so take 00, a for the knife angle, commonly used
The first term: m for the number of finishing, can be taken between 1 to 99, depending on the size of the main pitch, 3mm pitch to take 03
, The number of screw thread will be more, but too large tools easy to wear), d for the finishing allowance, but also thousands of positions, pitch 3mm left margin 0.2mm, written 200,
