It is said that Yang Fu and the three of them went out to the courtyard, basking in the warm afternoon sun, Lei Ming whispered to Yang Tian: "You can rest assured that you can bask in the sun here and wait, your new apprentice will come over soon." ”

Yang Tian was also full of expectations, because his martial arts were all taught by Lei Ming, and they were not as good as Lei Ming's level, so he was often abused, and he wanted to find some balance in Yang Erwu's body.

Therefore, Yang Tian simply made an OK gesture to Lei Ming, and then paced in circles in the sun, planning in his heart how to practice this disciple - although he did not admit this title in his mouth.

Lei Ming followed Yang Fu into the forging room, Yang Fu introduced the forging process a little excitedly, saying that it is necessary to pay attention to the control of the fire, the metal must be burned to what extent it must be clamped out and tempered, in what order, with what kind of strength to hammer the metal, and how long to control the quenching......

As soon as Lei Ming entered the door, he was immersed in his thoughts, and he didn't listen to Yang Fu's explanation, he imagined how to forge the sword better, the hard one is brittle, the toughness is not enough, and there is no tough material on his hand, and the alloy steel is not ...... Suddenly, there was a flash of inspiration, by the way, the problem of toughness and hardness can be solved by carburizing and quenching, but this requires a good quality of iron, which can be forged many times...... Hey, it seems that you can stack a few more layers on top of that, okay, that's it.

Just thinking about how to improve the sword, he raised his eyes and saw that he had walked in front of the furnace, Yang Fuzheng looked at himself seriously: "Thundering, if you want to learn forging, you have to listen carefully, if you don't listen carefully, it will take a lot of effort to explore." ”

Then he explained his set again, and Lei Ming also listened carefully, and nodded from time to time to confirm that he understood. It's just that Lei Ming listened and listened, and found that Yang Fu's set was forged farm tools, and the materials used were still the same metal as before. After these observations, he saw that the agricultural furniture used by the people in the village was patina, and guessed that bronze was mainly used here, but Yang Fu found some new materials in the small valley where they came, so he gradually changed to using them.

After listening to Yang Fu's careful teaching, Lei Ming put forward his own thoughts: "Grandpa, I understand what you said, but I have some ideas, and I don't know if the road will work." ”

Yang Fu was surprised, what he said just now was his experience of two or three generations, and he actually understood it so quickly, and said with a little skepticism: "What you just said really understood?" Seeing Lei Ming nodded, he said again: "Then tell me what you think." He didn't want to test Lei Ming directly, but to see if his idea was really put forward after listening to it, if so, then he really understood, if not, then he made other plans - after all, there was still a Yang Tian there.

Lei Ming touched his head first, took his thoughts, and said, "I want to fold the materials of several knives together and forge them into one, so that the toughness of the sword may be better, and then carburize and quench the forged sword embryos." Then the sword was hard and strong. Yang Fu was dumbfounded, he had never heard of forging like this, and carburizing was unheard of, after all, he was just a craftsman who forged farm tools. "Ka, folding and forging is easy to understand, you can also try it. It's just that what is that carburizing?" Yang Fu asked hesitantly.

Lei Ming patted his head, dizzy, the people here still don't know what carburizing is, and even if there is, it is not a craftsman from a small mountain village who can know it. So he explained: "It is to use refractory materials, such as bricks, to fill some carbon, and add some other things to wrap the sword embryo together to burn for a period of time, and then burn until the time of fastening and then quenching." After doing this many times, the sword will be very hard. "You can't measure it by temperature here, because there are no thermometers yet.

Seeing that Yang Fu was still thinking there, and there was no other reaction, Lei Ming continued: "Grandpa, why don't we try folding and forging, the materials here can also be tried." Lei Ming looked at the things in the forge room, and found that the hammer and mat had been replaced, and only six metal bars remained.

In the sound of "coaxing and coaxing" and "clanging", Lei Ming pulled the bellows and burned the two-foot-long, one-inch-wide and half-inch-thick metal strip until it was almost melting, Yang Fu clamped it out, folded it in half and forged it together, and after the temperature subsided, it was put into the furnace and burned again...... After repeated forging and refurnace, each metal bar was folded twice, and it was also pulled back to its original length, but it became much smaller, only one finger thick. Then, under the instructions of Lei Ming, five metal strips were put into the furnace and melted, and after repeated hammering, the five metal strips were put together, and slowly became a sword that was half an inch wide and two feet long and half an inch thick. After quenching twice with mud, and after tempering and annealing, the sword body is slightly black, and then it is ground with a whetstone to show a gray and white, and there are faint mountains.

After Lei Ming saw that Yang Fu had sharpened the sword, he couldn't wait for him to wipe off the sweat on his head, hurriedly took the sword, pulled a piece of linen cloth and rolled it around the hilt, and looked at it carefully. Against the backdrop of the firelight, the sword body reflects a cold glow, and the patterns on it are also looming, it seems that this is really a patterned sword, and the performance should be much better than before. Looking at it, Lei Ming's smile couldn't help but spread from the corner of his eyes to his entire face, and then he laughed out loud - just because he was too small, and the sound of laughter was a little funny.

The hard-working Yang Fu wiped his sweat in his eager anticipation, and hurriedly asked, "How is it?" Lei Ming said happily: "Pattern Sword, we forged the Pattern Sword!" Seeing that Yang Fu was puzzled, he then said affirmatively: "This is much better than the previous one, and there should be no problem with the sword that split mine." ”

So, Lei Ming and Yang Fu walked out of the forging room. I saw the sun set, the clouds in the sky were scattered red one by one, and the surrounding green mountains gradually darkened. Yang Tianzheng, who looked like a child in the courtyard, was pointing Yang Erwu to practice boxing, but Yang Erwu was bitter, bowing and trembling horse steps and waving his fists and palms tiredly - practicing martial arts is not so easy.

Before Lei Ming could lift his sword and go out, Yang Tian heard the sound of footsteps and turned around, and saw the sword in Lei Ming's hand coated with a layer of red under the afterglow of the setting sun, which looked extraordinarily energetic, thinking about his knife in his heart, and hurriedly asked, "Where is my knife?"

Lei Ming glanced at him and said, "Your sword is waiting first, I'm trying to test the new method of forging." This is a freshly forged sword, and I want to try it with the previous sword. Yang Tian suddenly rushed to Lei Ming's side, and just wanted to reach out to take the sword to take a look, but as soon as he stretched out his hand, he found that Lei Ming flashed two meters away, raised his hand and was embarrassed, so he asked angrily: "Just take it and take a look, what kind of flash!" Lei Ming sneered his teeth, knowing that Yang Tian was because he missed his hand in front of his apprentice, he had no face, and said: "You have to see if you just say it, if you want it, I won't give it to you, but you don't say how I know Lu Dao." Glancing at Yang Tian, Lei Ming stuck the sword on the ground with his backhand, only to see the sword "swish" into half of it. Yang Tian grinned and jumped over and pulled out his sword to take a closer look, and found that it was a patterned sword, and couldn't help but praise it. When he looked up again, he saw Lei Ming take the old sword out of the house, Yang Tian got up, and stabbed at him with a single arrow step with the sword. Lei Ming saw Yang Tian stabbing at him, swung his sword and flicked the sword to the right back, and the two swords scraped each other "Horn~" sounded, Yang Tian was taken to the center of gravity unstable, and took a small step forward to stabilize. Just as Yang Tian was about to draw his sword and stab again, Thunder stepped forward and raised his left palm to slash at Yang Tian's right wrist. Yang Tian only felt that his wrist was weak, and he quickly withdrew his right hand, and the patterned sword was swept back by Lei Ming. Yang Tian's face was full of depression, before coming to this world, he only practiced internal skills, and after he came, although he opened up the meridians and learned the moves, he was still far from being useful, so he lost his sword in an instant.

Yang Tian was annoyed: "Can you give some face?"

"It's better to keep you sober and sober, otherwise if you give other knives, it will also break. Fortunately, it was a wild boar last time, and if you were a master, it would be troublesome. "Lei Ming doesn't give any face at all. Yang Yuwu stood aside and snickered, and Yang Fu also stood aside and smiled "hehe".

"Let's see how this patterned sword goes. Immediately, Lei Ming held the patterned sword in his left hand and slashed lightly at the blade of the sword in his right hand, only to hear the sound of "sonorous", the two swords separated, the old sword collapsed, and the patterned sword was intact. Lei Ming was satisfied, his left hand carried some internal force, waved the pattern sword and slashed towards the old sword, and heard the sound of "clang" again, the two swords were staggered, the old sword was broken, and the broken section fell to the ground with a "poof". Seeing this scene, Yang Fu stroked his beard and smiled, Yang Tianha laughed, Yang Erwu couldn't close his mouth with an "ah" in surprise, and Lei Ming just smiled, everything was expected.

Yang Tian snatched the patterned sword in Lei Ming's left hand in front of him, carefully examined the injury, and saw that there was a small gap in the blade of the sword, and he was slightly happy in his heart, and said with a smile: "There is a gap, the level needs to be improved, let me improve this forging method." ”

Lei Ming smiled and said, "Okay, just wait for your words, you are a genius scientist, don't let everyone down." ”

"Surely, we will start work tomorrow. By the way, how much more material do you have?"

"Hmm~. Lei Ming hesitated slightly, and said, "There are still some slags." ”

"Scared?!" Yang Tian was dumbfounded, it turned out that he had been pitted, and all the materials had to be re-made, and it was manual work......

Looking at the two extraordinary children, Yang Fu's heart was full of love, and he went into the house to cook after a while; Yang Erwu admired it in his heart, and looked forward to practicing his skills to break through the wonderful world outside.

When it got dark, Yang Erwu went home, and Yang Fu took the two children to eat and rest.