On the ground, there were large and small pieces of iron, some unknown metal objects, and some refining materials such as beast materials.

"Do you know how many kinds of metals there are?" said the old man surnamed Ann without raising his head.

"Students only know pig iron, refined iron, cold iron, 100 steel, 100 hammers of silver, ......" Zhang Yi roughly said what he knew.

"Do you know what the metal used to refine weapons is?" the old man surnamed An continued to ask.

"This ...... Students don't know!"

Zhang Yi didn't know what the specific refining weapon metal was, but all the weapons were mainly forged from pig iron, and the lower weapons on the higher level were unknown.

"All the refining weapons are mainly pig iron, if you want to improve the grade, you need to add cold iron, and refining spiritual weapons not only requires cold iron, but also the essence blood of fierce beasts!" the old man surnamed An explained briefly.

"Do you know how to forge weapons?" asked the old man surnamed An.

"Student...... I don't know!" Zhang Yi was a little unsure of the old man's thoughts.

"First of all, the pig iron forging removes impurities, the number of forgings achieves the grade of the weapon, after the refining furnace, in the second forging, and then the melted cold iron liquid is added, which can be formed after cooling!"

"Do you know what happens after the weapon is formed?" asked the old man surnamed An.

"The student still doesn't know!" Zhang Yi didn't think about subconsciously speaking.

"Idiot, of course it's sharpening the blade!" didn't even know this basic common sense, and the old man surnamed An was also angry for a while, and scolded unceremoniously.

The corners of Zhang Yi's mouth twitched, and he still lowered his head and patiently listened to his reprimand.

"You don't know how to give the old man a hand, give you half a month to create a low-grade weapon, and after half a month, it doesn't work, where will you come and go back!" After that, the old man surnamed An stood up, hung the polished weapon in his hand on the wall, and then glanced at Zhang Yi up and down, and walked out of the house.

"This ......" Zhang Yi looked at the back of the departing, a little annoyed in his heart.

I won't!

Zhang Yi's heart, the old man surnamed An couldn't hear it.

Zhang Yi sat on a piece of metal with a sad and helpless face, and began to think about the words of the old man surnamed An just now.

"Forge the pig iron first to remove impurities!" Zhang Yi recalled the words of the old man surnamed An just now.

"First find a piece of pig iron, and then start forging to remove impurities!" Zhang Yi thought about it carefully and felt that there was some truth in what he thought.

Then, Zhang Yi set his eyes on a pile of metal.

Zhang Yi walked over and analyzed the metal categories one by one, many of which he didn't know, but pig iron was relatively common, and it was easy to distinguish.

In the corner of the wall there is a gray-black piece of iron that is more than long and the thickness of a bucket, and the surface is relatively rough.

Seeing this, Zhang Yi turned around and casually took off a low-grade weapon hanging on the wall, and began to compare it with pig iron.

The low-grade weapon is relatively smooth and bright, and it can make a crisp sound when flicked by hand, and there is almost no trace of impurities, while the surface of the pig iron is rough, Zhang Yi slapped it with his hand, making a dull sound, and you can see at a glance that the raw iron has never been forged.

"As long as it is a forged weapon, the surface is smooth, the sound is crisp, and there are almost no impurities, while the unforged pig iron has a rough surface and a dull sound!"

The place where the old man surnamed An sharpened the knife just now, there is a forging hammer more than one person high, next to it is a countertop, I think that the position is the casting table, and there is a shelf not far away, on which some forging tools are placed like carving knives, small forging hammers, lubricating oil, etc.

No one taught the refining weapon, and no one watched it, so Zhang Yi had to explore it by himself

Glimpse the potential of two days, one arm can easily lift a thousand catties, Zhang Yi grabbed the pig iron with one hand, and the potential burst out, more than 1,500 catties of pig iron, and lifted it alive.

Zhang Yi came to the casting table with pig iron in one hand, and as soon as his hand was loosened, a thousand catties of pig iron fell, making a loud dull sound, which shook the whole room and fell a cloud of dust.

Zhang Yi patted the dust on his hands, grabbed the forging hammer casually, and faced the weight of the forging hammer, Zhang Yi began to exert himself, and then all his potential was used, but the forging hammer did not move at all!

originally thought that forging should be within Zhang Yi's expectations, at most a few hundred catties in weight, but it turned out to be much beyond his budget!

You must know that Zhang Yi has the potential to divep for two days, and a thousand catties of things are no longer a problem, and a forging hammer can reach a thousand catties, which is a bit incredible!

Zhang Yi took a step forward, a little unbelieving, holding the forging hammer with both hands, the potential of his whole body was used, and the forging hammer showed signs of loosening, and slowly rose from the ground.

Zhang Yi's hands combined, but more than 3,000 catties, he barely picked up the forging hammer, which shows that the weight of the forging hammer is also 3,000 catties!

At this moment, Zhang Yi couldn't care about the material of the forging hammer, and in an instant, the potential of his whole body burst out, the green tendons on his forehead bulged, picked up the forging hammer, and smashed it on the pig iron.

A loud bang was heard, and the spark flashed, and the pig iron was visibly dented.

"It works!"

Seeing that it was not much different from his expectations, the pig iron really changed, Zhang Yi picked up a hammer and smashed it on the pig iron.

On the pig iron, there was another visible collapse, Zhang Yi was a little excited in his heart, picked up the forging hammer and smashed it again.

After the three hammers, water droplets had appeared on Zhang Yi's forehead, and his breathing became heavier.

Fourth Hammer ...... Fifth Hammer ...... Sixth Hammer ......

Until the tenth hammer, Zhang Yi stopped panting.

Zhang Yi had red eyes and sweaty, wiping the sweat on his left sleeve and the right sleeve, but no matter how he wiped it, the speed of this sweat could not keep up with the speed of wiping sweat, which showed that the potential of these ten hammers was not less.

Looking at the pig iron in the ten depressions in front of him, Zhang Yi frowned, and was a little dissatisfied in his heart, ten hammers down, except for the ten depressions, the pig iron almost did not change, but he was almost exhausted, when will it take to remove the impurities? Can he complete it? I couldn't help but have a thought in my heart, whether to learn the method of refining weapons.

After Zhang Yi waited for his breathing to be stable, he scattered the thoughts in his mind, gritted his teeth and continued to forge......

After that, the forging became even more difficult, almost every time he picked up a hammer, Zhang Yi had to recover for a long time, otherwise his physical strength would be even worse, then he couldn't hold the forging hammer, let alone forging.

In this way, for a whole day, Zhang Yi stopped and stopped, even if he didn't have a trace of strength, he would try to hold the forging hammer, as long as he could pick it up, no matter what, even if he was desperate, this hammer would have to be smashed on the pig iron, otherwise it would be a waste of strength, a waste of time, and a waste of physical strength!

During this day, the old man surnamed An did not come, and Zhang Yi spent almost all of his time in the refining room except for meal time, and drank several buckets of water.

In the evening, Zhang Yi leaned against the wall, sat on the ground, his eyes were round, looking at the pig iron in front of him that had almost shrunk in a circle, and a rare smile appeared on his face.

"Two hundred and thirty-five hammers! I almost died here!" Zhang Yi couldn't help but sigh.

The weapons used by ordinary mortals are naturally refined quickly, but the weapons used by potential people can be different from those used by mortals, and the refining will naturally require a lot of waste.

First of all, the material aspect is a big problem.

At this moment, Zhang Yi's physical strength was almost exhausted, and he was no longer able to use the slightest potential, and even ordinary walking looked extremely difficult.

Fortunately, there were not many disciples in the academy at this time, and some of them saw Zhang Yi seriously injured, and thought that the injuries left by him in the newcomer trial had not yet recovered. However, Zhang Yi's famous and famous academy, some ordinary disciples also avoided it.

Zhang Yi supported his body, came to the cafeteria, spent more than ten contribution points, ate dinner, returned to the house and fell asleep, and even Zhu Shujie didn't have time to read the letter on the table.

Early the next morning, Zhang Yi opened his eyes, and the pain all over his body was unbearable, as if he had just connected to someone else's torso, which was extremely inconvenient, and his every move was extremely difficult.

Zhang Yi got up slowly, took a breath with his teeth bared, and then slowly sat down next to the chair, poured a cup of tea and drank it all.

Yesterday's whole day of forging has made me look like this, I wonder if today, can I pick up the forging hammer?

"One day is okay, if it lasts for a month, I'm afraid this body can't hold it, unless you have an elixir!" Zhang Yi thought of this, picked up the contribution card casually, glanced at the contribution points displayed on it, and felt worried in his heart.