Forging process review materials, forging methods and processes

There are two common forging methods:

1. Die forging:

The forging method of obtaining forgings by using a die to form a blank on a special die forging equipment has been slowed down. The forgings produced by this method have accurate dimensions, small machining allowances, complex structures and high productivity.

According to different equipment, die forging is divided into hammer die forging, crank press die forging, flat forging machine die forging, friction press die forging, etc. The equipment used in die forging on the hammer is a die forging hammer, usually an air die forging hammer, which is preliminarily formed in the billet die cavity for forgings with complex shapes, and then forged in the forging die cavity.

2. Free forging:

Free forging is a processing method that uses impact or pressure to make the metal freely deform in all directions between the upper and lower anvil surfaces, and obtain the required shape and size and certain mechanical properties without any restrictions, referred to as open forging.

Open forging is divided into manual free forging and machine free forging. Manual free forging has low production efficiency and high labor intensity, and is only used for repair or the production of simple, small and small batches of forgings.

In modern industrial production, machine free forging has become the main method of forging production, and it plays a particularly important role in heavy machinery manufacturing.

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1. Blanking: using grinding wheel cutting machine to blank, car end face, rounding;

2. Heating: electric furnace heating, furnace temperature (450 10), heating and holding time 136min;

3. Die forging: The die forging equipment is a 6300KN friction press, which first flattens the blank to the required thickness on the upsetting table of the forging die, and then lays the material flat in the groove for die forging;

4. Heating: furnace temperature (450 10), heating and holding time is 30min (second fire);

5. Die forging: pressed to size;

6. Heating: furnace temperature (450 10), heating and holding time is 10 15min;

7. a hot cutting edge;

8. Pickling: according to the general process regulations of pickling;

9. Heat treatment: quenching according to the heat treatment process regulations;

10. Pickling: according to the general process regulations for pickling;

11.forging repair;

12.Forging inspection: check the material grade, shape, surface quality and hardness.

1. Blanking: using grinding wheel cutting machine to blank, car end face, rounding;

2. Heating: electric furnace heating, furnace temperature (450 10), heating and holding time 136min;

3. Die forging: The die forging equipment is a 6300kn friction press, which first flattens the blank to the required thickness on the upsetting table of the forging die, and then lays the material flat in the groove for die forging;

4. Heating: furnace temperature (450 10), heating and holding time is 30min (second fire);

5. Die forging: pressed to size;

6. Heating: furnace temperature (450 10), heating and holding time is 10 15min;

7. a hot cutting edge;

8. Pickling: according to the general process regulations of pickling;

9. Heat treatment: quenching according to the heat treatment process regulations;

10. Pickling: according to the general process regulations for pickling;

11.forging repair;

12.Forging inspection: check the material grade, the lack of shape of the outer Kai spike and the surface quality and hardness.

Hello, dear, I am happy to answer this question for you, what are the common forging process methods you consulted? Hello, dear, the common forging process methods are open forging, die forging and fetal forging. 1. Open forging Open forging is the use of impact or pressure to deform the metal between the upper and lower two iron resists.

So as to obtain the required shape and size of forging. In heavy machinery, open forging is a method for producing large forgings and extra-large forging forming. 2. Die forging Under the action of pressure or impact force, the metal blank is deformed in the forging die chamber, so as to obtain the process method of forging.

The forgings produced by this method have accurate dimensions, small machining allowances, complex structures and high productivity. 3. Tire die forging Tire die forging is the process method of using tire molds to produce die forgings on open forging equipment, generally using the free forging method to make blanks, and then forming in the tire mold. Characteristic forging method, it is characterized in that, it comprises forging hole, inserting wax strip, mold rock asparagus slag pressing forming and heating process, and described forging hole drawing process is to draw solid rod into a hollow pipe fitting without joints; The wax strip insertion process is to stuff the wax strip corresponding to the inner diameter of the hollow pipe fitting into the inside of the hollow pipe fitting; The molding process is to place the hollow pipe fitting with wax strip between the upper die and the lower die, and the mold cavity of the upper die and the lower die is respectively provided with the corresponding concave and convex shape shape, and when the upper die and the lower die are pressed, a rough reinforcing rib can be formed at the periphery of the pipe fitting; The heating process is to be compressed and molded.

Summary. The forging production process mainly includes blanking, heating of forgings, forging, cooling, quality inspection of forgings, and heat treatment of forgings.

The forging production process mainly includes etc.

The forging production process mainly includes blanking, heating of forgings, forging, cooling, quality inspection of forgings, and heat treatment of forgings.

Forging has a long history in China, and it is a continuation of the production method of handicraft workshops. Presumably at the beginning of the 20th century. It gradually appeared in the railway, ordnance, shipbuilding and other industries in the mode of mechanical industrialized production.

The main sign of this transformation is that Hu Xi used a powerful machine bending device.

Pro, forging is a kind of digging and rolling land using forging machinery to apply pressure to the metal billet, so that it produces plastic deformation to obtain a certain mechanical properties, a certain shape and size of the forging processing method, forging preparation (forging and stamping) one of the two major components.

At the same time, due to the preservation of complete metal streamlines, the mechanical properties of forgings are generally better than castings of the same material. The important parts with high load and severe working conditions in related machinery, except for the simple shape of the plate Luhuai line, profile or welded parts, mostly use open potato forgings.

According to different production tools, forging technology can be divided into free forging, module forging, ring grinding and special forging.

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Because the metal material has a certain something, it is conducive to the smooth completion of certain forging processing, repair process and assembly.

Metal materials are the most important structural materials in the modern machine building industry. Those who are engaged in machine manufacturing, whether they are designers, process and manufacturing technicians, and maintenance personnel, must master or understand the knowledge of metal materials. "Metallurgy and Heat Treatment" is a discipline that provides knowledge in this area.

Metal has all the properties it has as a matter of substance. Motion is a fundamental property inherent in matter. Movement is change, it is process.

The movement of metals means that when the surrounding environment changes, the internal structure and structure of the metal will change, and the properties derived from it will also change. Thermal field, force coarse mountain bond field, magnetic field, chemical medium field, etc., can be the surrounding environmental factors of the metal, and the change of these factors can cause changes in the properties of the metal, some of which have a strong impact and some have a weak impact.

When the ingot is used as a forging blank, it is necessary to accurately cut according to the actual forging size and shape. Generally speaking, the ingot should be divided into several blocks with a certain size and shape, and then these blocks are combined into a model, and the shape and size of the forging should be made to meet people's needs. Because lead is resistant to this, before cutting, a detailed design should be carried out, and some quantitative and qualitative detailed technical and assembly requirements (including size and shape requirements) should be formulated, and then accurate blanking should be carried out in accordance with these requirements to meet the quality requirements.

(1) When the heating is stopped, set y=k

x(k≠0), 600=k from the title

8, the solution is k=4800, when y=800, 4800

x=800 is solved to x=6, the coordinates of point b are (6,800), when the material is heated, let y=ax+32(a≠0), from the question 800=6a+32, the solution is a=128, when the material is heated, the functional relationship between y and x is y=128x+32(0 x 6);

When the heating is stopped for forging, the functional relationship between y and x is y=4800x(x 6);

2) Substitute y=480 into y=4800

x, get x=10, 10-6=4 minutes

Therefore, the operating time of forging is 4 minutes