Question 2: What is the use of hot rolling forging casting? What materials are used for hot rolling? After the raw materials are smelted, steel ingots are formed, and the heated steel ingots are rolled into steel by a press, which is even more hot rolling.
Forging: The popular name is "strike while the iron is hot". Cut the steel into short materials (blanking), reduce the hardness of the steel by heating, and then make the parts by die. Generally, there are processes such as blanking, heating, forming, trimming, punching and shaping.
Casting: It's a little different from the first two films. Generally, the steel is melted by heating, poured into the mold cavity, and taken out after the steel is solidified by water cooling to form parts. Commonly used casting methods are: pressure casting, sand casting, molten film casting and so on.
Question 3: What material is used for forging die and what is the heat treatment process? Steel Cr 12MoV, 5CrNiMo, 5CrMnMo, etc. For forging dies, heat treatment; Tempering after oil quenching is a typical process.
Question 4: What materials and props are needed for forging weapons? Forging articles need minerals, capsules and other materials, and forging different props needs different materials. After you have learned the corresponding forging skills, you can press the K key to open "Life Skills" to view the materials needed for each piece of equipment. The above answers are for reference only, please refer to the actual situation.
Question 5: What is the malleability of metals? The ability of metal to produce plastic deformation under the action of external force is called malleability, which mainly depends on the plastic size of metal. The better the plasticity, the better the forging performance of metal. All kinds of steel and most non-ferrous metals and alloys have certain plasticity, so they can be forged in hot or cold state. After forging, the metal material can weld internal pores, disperse fine shrinkage cavities and increase the density of metal; As-cast columnar crystals and coarse crystals can be crushed into fine crystals, and the mechanical properties of metals can be improved. Weldability refers to the adaptability of metal materials to welding process: because welding is a process of uneven heating, metal materials with good thermal conductivity and small shrinkage have better welding performance. The welding performance is good, the shape and size of the metal can be kept unchanged after welding, no weld seam is generated, and the welded joint has sufficient strength. The chemical composition of steel largely determines the weldability of steel. Of all the elements, carbon has the greatest influence. Generally speaking, with the increase of carbon content I, the weldability of steel becomes worse. The welding performance of metal materials is not invariable. The welding performance of the same metal material, different welding methods and welding materials (covered electrode or welding wire) may vary greatly. For example, it is difficult to guarantee the welding quality of ordinary steel covered electrode for cast iron, but the quality of nickel-based covered electrode is very good. Machinability refers to the difficulty of cutting metal materials. Difficult-to-cut metals with poor machinability; Free-cutting metal with good machinability. Machinability is related to the chemical composition, microstructure, mechanical properties, thermal conductivity and deformation strengthening of materials, especially the hardness of materials has a great influence on it. Generally speaking, when the hardness of the material is 160-230hb, the cutting performance is the best. Metal tools with good cutting performance have small wear, good surface quality after machining, small cutting force and low power consumption. In practice, for difficult-to-machine materials, heat treatment and reasonable selection of tool materials, tool geometric parameters and cutting parameters are often used to improve cutting performance.
Question 6: What kind of parts are suitable for forging process? Forging is a processing method that uses forging machinery to exert pressure on metal blank to produce plastic deformation, so as to obtain forgings with certain mechanical properties, shapes and sizes. Forging and stamping are both plastic working properties, which are collectively called forging.
Forging is a common forming method in mechanical manufacturing. Forging can eliminate the as-cast porosity and welding holes of metal, and the mechanical properties of forgings are generally better than those of castings of the same material. Forgings are mostly used for important parts with high load and bad working conditions in machinery, except for rolled plates, profiles or weldments with simple shapes.
Forging can be divided into cold forging and hot forging according to the temperature of the blank during processing. Cold forging is generally carried out at room temperature, while hot forging is carried out at a temperature higher than the recrystallization temperature of the blank metal. Sometimes forging is called warm forging when it is heated but the temperature does not exceed the recrystallization temperature. However, this division of labor is not completely unified in production.
The recrystallization temperature of steel is about 460℃, but generally 800℃ is the dividing line, and above 800℃ is hot forging; The temperature between 300 ~ 800℃ is called warm forging or semi-hot forging.
Forging can be divided into free forging, die forging, cold heading, radial forging, extrusion, forming rolling, roll forging, rolling and so on. The deformation of billet under pressure is basically not limited by the outside world, which is called free forging, also called free forging; The blank deformation of other forging methods is limited by the die, which is called closed die forging. Forming tools such as forming rolling, roll forging and rolling have relative rotary motion with the blank, and the blank is pressed point by point and gradually, so it is also called rotary forging.
Forging materials are mainly carbon steel and alloy steel with various compositions, followed by aluminum, magnesium, copper, titanium and their alloys. The original state of materials includes rod, ingot, metal powder and liquid metal.
Small and medium-sized forgings generally use round bars or square bars as blanks. The bar has uniform grain structure, good mechanical properties, accurate shape and size and good surface quality, which is convenient for mass production. As long as the heating temperature and deformation conditions are reasonably controlled, forgings with excellent performance can be forged without large forging deformation.
Ingots are only used for large forgings. Ingot is as-cast structure with coarse columnar crystals and loose center. Therefore, columnar crystals must be broken into fine grains through large plastic deformation, and the porosity will be compacted, thus obtaining excellent metal structure and mechanical properties.
Powder metallurgy preform after pressing and sintering can be made into powder forgings by hot die forging without flash. Forging powder is close to the density of common die forgings, with good mechanical properties and high precision, which can reduce subsequent cutting processing. Powder forgings have uniform internal structure and no segregation, and can be used to manufacture pinion and other workpieces. However, the price of powder is much higher than that of ordinary bar, and its application in production is limited.
By applying static pressure to the liquid metal poured in the die cavity, it can solidify, crystallize, flow, plastically deform and form under pressure, so as to obtain die forgings with required shapes and properties. Liquid metal die forging is a forming method between die casting and die forging, which is especially suitable for complex thin-walled parts that are difficult to form by general die forging.
Different forging methods have different processes, among which the hot die forging process is the longest, and the general order is: blanking and forging blanks; Heating and forging the blank; Roll forging and blank making; Die forging forming; Pruning; Intermediate inspection: check the size and surface defects of forgings; Heat treatment of forgings to eliminate forging stress and improve metal cutting performance: cleaning, mainly to remove surface oxide scale; Correction; Inspection: general forgings should be inspected for appearance and hardness, and important forgings should also be inspected for chemical composition analysis, mechanical properties, residual stress and nondestructive testing.
Forging is the combined name of forging and stamping, and it is a forming method that uses the hammer, anvil, punch or die of forging machinery to exert pressure on the blank to produce plastic deformation, so as to obtain the required shape and size.
In the forging process, the blank has obvious plastic deformation and a lot of plastic flow; In the stamping process, the blank is formed mainly by changing the spatial position of each part area, and there is no long-distance plastic flow inside it. Forging is mainly used to process metal parts, and it can also be used to process some nonmetals, such as engineering plastics, rubber, ceramic blanks, brick blanks and composite materials.
Rolling and drawing in forging and metallurgical industries belong to plastic processing or pressure processing, but forging is mainly used to produce metal parts, while rolling and drawing are mainly used to produce plates, strips, pipes, profiles and wires. & gt
Question 7: What materials do you need to forge the three magic strings of sword net? Is the magic rope you are talking about a rubbing of that weapon? If so, I will tell you that the blade of that weapon is called Shura Lei Jian. This is a weapon from the 1950 s, and its atlas should be sold by a trading company. If it is to be manufactured, it needs:
Shura spectrum 1, zinc ingot 20 (that is, two groups of zinc ores are needed), Tiemu 5, Cinnabar 2 and Cinnabar 2, among which Shura spectrum is difficult to obtain. You can brush all kinds of books from the 1950s, such as Yufeng Daoxiang Village or Rilun Mountain City and Dihua Palace, which may be dropped.
If you find it difficult, you can make an orchestra. It looks like a magic rope, but it won't shine. Moreover, it is relatively easy to get. Its weapon atlas satin embers are sold directly in Yangzhou grocery store, and the materials are relatively simple. As for what it is, I won't say much. You can see for yourself.
Question 8: Which parts are cast and which parts are forged? Don't mislead the children upstairs.
Gaskets are usually stamped, not forged or cast.
Nuts are generally formed by cold heading, not by hot forging.
Cylinders in daily life are formed by stamping and stretching. It is neither forged nor cast.
Kitchen knives should belong to forging, and generally kitchen knives should be steel clips.
The skin of thermos bottle is also formed by cold stamping.
Here are some examples.
Forging: axe, connecting rod, crankshaft, rocker arm, knuckle, fork, stainless steel knife and fork.
Castings: machine tool bed, radiator, manhole cover, bronze statue of handicrafts, cast iron wok.
Question 9: What kind of material is used for the forging die? Hot forging dies generally adopt 3Cr2W8V, which has high thermal stability, high hardness at high temperature, high strength, good wear resistance and toughness. Cr 12MoV has high hardenability, hardness, wear resistance and toughness, small deformation, but poor high-temperature plasticity, and is suitable for various casting and forging dies.
Question10: what materials are needed for WOW 6.2 forging weapons in stages 5 and 6? Novices, please upgrade with full name weapons in stages 5 and 6. You need 350 real steel ingots +60 witchcraft qi +60 evil energy disasters at a time.