I want to hit a 13CM knife, which is sharp and not easy to break. What kind of material should I use? Where is the master good?

it depends on whether you want to be cheap or expensive. Cheap ones are cumbersome, and expensive ones are simple. But the performance is exactly the same, you can try it. (Tatsu Yamashiro) Production

Let's talk about the cheap ones first. Materials: The production length of a spring steel plate depends on the situation, and the length of a 5-7mm steel bar used in the construction site is the same as above.

Practice: 1. First, cut the spring steel plate into flat plates and strips with a width of 2cm.

2. Weld the steel bars and steel bars firmly by electric welding, and process them into the desired camber.

3. Start sharpening the knife and wait for quenching before sharpening.

4. The most important quenching step is to heat the knife until it turns red, and then quench it with ice by holding the knife, only half of it.

5. Cutting depends entirely on technology.

6, fittings, as the case may be.

7. finish.

let's talk about expensive ones. There are three kinds, one is a wrought iron sword, the other is a steel sword, and the other is an all-steel sword.

let's do it with Baidu. I won't talk nonsense here.