Detailed reasons about the factors that affect the quality of threads!

1.The reason for the knife is mainly on your turning knife. That's because your turning tool is too worn, and the turning tool is not picking the threads, but forcing the feed to the hard side. Do you think he can not stab a knife?

2.There are 2 main reasons for tooth failure. One is that the angle of your knife is not sharpened well.

I guess the tip of the knife is crooked. The second is that you sharpen the knife. I do not match the angle of the knife with an exclusive knife setting model!

The other thing is that you get the knife at the right angle. The knife is not clamped. I also move when I pick the thread.

That's why there is a tooth reversal!

3 about half plain and half coarse grass. It's still a matter of your knife, no matter what kind of work you do. 70% of a turner's skill is to sharpen a good knife.

Saying goes. 7 points turning tools. 3 points of certainty.

That's what I said. I don't know what kind of turning tool you're using. Do that kind of work.

A material of the material. And the size. It is a dry process, and the material is hard and hard.

The material is soft and has a soft dry method. And the cutter bits used are all different, if you use alloy cutter heads. I guess you sharpened one of the two blades of the knife out of a small gap, so it's not just that.

4. Messy teeth, that is, you put the threaded handle of the pitch is not hung right. That's why it's messed up. The way to prevent it is.

When you hang up the pitch, go first to 10 20 wires. Use a special tooth gauge to see if the thread pitch is correct. Then pick.

Also, you didn't clamp the knife tightly. Another thing is that your little extension is not tightened. He ran back and forth.

That's why it's a mess.

It seems that you are a beginner, and beginners can sharpen the front and back corners of the knife to be larger, but the knife does not last long. (Feed less).

Is it messy? It's just that the pitch of the threaded handle hasn't been hung, or your knife has moved, and the small mop has moved. For three reasons, there is absolutely no other.

What are the main factors that affect the accuracy of Pusenmu through thread bonding?

a.Mid-diameter deviation.

b.Pitch deviation.

c.The flank angle of the tooth is biased.

d.Diameter size error.

Correct answer: ABC

The machining accuracy of the thread, the length of the connection.

For triangular threads, first of all, on the thin-walled structure, the coarse thread is generally not used, which is to avoid too much damage to the thin-walled structure. Secondly, in general mechanical equipment, for those threads used for connection, fine-tooth threads are generally not used, especially screws subjected to tensile force, to avoid slippage. For rectangular, trapezoidal and zigzag threads, threads are generally not used for joining thread pairs, because these thread pairs are not self-locking.

Factors affecting the strength of the connection:1Materials, 2

Machining accuracy of threads, 3The length of the connection, 4Coarse teeth, fine teeth, when designing:

1.Choose materials with high strength, or heat treatment to improve some strength, 2Accuracy requirements for thread machining, 3

Specify the necessary connection length, 4with coarse teeth.

There are mainly materials and thread fit grades.