What is the best vehicle for threading
Depending on what kind of material you are working on, the thread on the cast-iron material is hard alloy with YG, and the steel parts of the car are made of hard alloy of YT. The depth of the tool with the high hardness of the material can choose the small point, the method that can take the small knife frame when the size of the cross section is large. The Angle of the knife should be more than half degrees of the Angle of the tooth, the rear Angle of the blade is equal to the Angle of the Angle and the Angle of the Angle. The center height of the edge of the knife is the center of the workpiece, and the Angle bisector is perpendicular to the axis of the workpiece.
According to the analysis; The toughness of the material is not very high hardness materials, the main cutting edge on the cutting dosage is too large to the chip breaker of cutting not, this case can be on the main cutting edge grinding out R1.5 deep 1 chip breaker groove.
Threading, I suggest that you place the knife with machine, using ordinary alloy knife N is slow, the knife grain surface treatment. Plating outside of what I'm not very clear. The size is also very good control. As long as it is metric thread into 1.3 * pitch. Pitch diameter by 98%, wear too! I'm also a car worker
