The threading tool always breaks down
The machining speed of the nc thread is taken from the F value of the previous line command, not too large. Patterns and collapses are caused by a slightly higher speed and a tremor in the workpiece. According to your programming, the amount of knives is not very large. When the car should be in the first knife or the rough car of the first knife, the value of the fine car should be changed to 02, the G1 command will be added to the G1 command before the G76, and the F value will be added. The F is small for the processing, especially the great pitch. It is usually only for reference in F60. Hope to help you
The knife is as short as possible, but it should be used. The knife should be held high or slightly higher than the center of the work. Sometimes a car: Try not to eat the knife at the same time (except for the last few knives).
The threading tool is always broken: The two rear corners are as small as possible, but be sure to have two blades of oil blunt. Sometimes there are patterns:
