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Mold Free forging

Aluminum free forging products:
 
 
Free forging is a kind of forging method, in which the blank is heated to the forging temperature, under the action of free forging equipment (forging hammer or press) and simple tools (hammer or anvil, etc.), general tools and movable simple combination dies are used to control metal deformation by manual operation to obtain the desired shape, size and quality. The shape and groove of the membranes used are relatively simple, convenient to manufacture and low in cost. The main forging processes used are upsetting, drawing, punching, reaming and bending.
 
Free forging of aluminium and aluminium alloys has the following advantages:
 
1) Free forging can improve the structure and properties of aluminium alloy. The quality and mechanical properties of aluminium alloy free forgings are higher than those of castings, and their strength is 50%-70% higher than that of castings. Therefore, they can withstand large impact loads. The plasticity, toughness and other mechanical properties of aluminium alloy free forgings are higher than those of castings. The weight of the parts themselves is more important for aircraft, aerospace equipment, vehicles and vehicles.
 
2) Free forging can save raw materials.
 
3) Free forging is suitable for single piece and small batch production, and the variety change is more flexible.
 
4) Free forging is a common forging method. Because free forging does not use special dies, forging tools are universal and the cost of production is low. It is suitable for the production of single piece, small batch forgings, urgently needed super large forgings, and trial production of forgings for new products under special conditions.
 
5) Streamline distribution of straight or bending axles and finished annular parts is generally more reasonable than that of die forgings because there is no transverse flow of metal. It is especially suitable for shaft, disk or ring parts with simple shape, small cross-section change and flat straight or curved spindle.
 

Aluminum free forging raw materials: 1) Ingot blanks should be made from small grains of ingot blanks. In addition, homogenization annealing should be carried out before use to improve product structure and plasticity. 2) Generally speaking, extruded blanks are often used in forging free forgings of medium, small and low plastic aluminium alloys. However, upsetting and elongation of extruded wool should be carried out to eliminate the influence of anisotropy of extruded bar.
 
Classification of aluminum free forgings:
 
 
Aluminum free forging is a universal process, which can forge forgings of various shapes. According to the characteristics of forging process, free forgings of aluminium alloy can be divided into four categories:
Aluminum forged block, aluminum forged ring and aluminum forged cylinder, shaft and rod forgings, bending forgings, etc.
1) Aluminum forged round disc. This category includes various discs.
2) Aluminum forged ring cylinders. These include various rings and cylinders.
3) Aluminum forged shaft rod . This kind includes all kinds of round, rectangular, square, I-shaped cross-section bar, etc.
4) Aluminum bending forgings. This category includes forgings of various bending axes, such as bending rods.
 
Forging method Forging types Maximum weight Maximum specs Alloy Tempers Standard
Aluminum free forgings Aluminum forged square block ≤9T Length≤ 7000mm,Width≤ 2000mm,
Height≤ 500mm
2219、2618、2B50、2A50、2A70、2A80、2D70、2A14、2014、2A11、2A12、2024、3A21、4032、5A90、5210、5A02、5A03、5083、5A05、5A06、6A02、6061、6082、7A04、7B04、7A09、7075、7050、7A19、7A10 Available temper:O、F、H112、T3、T4、T5、T6、T62、T652、T73、T74、T7452、T852 GBn223
YS/T479
ASTM B247
AMS
Aluminum forged disc ≤5T Diameter≤ 2500mm
Aluminum forged rings ≤5T Quenched ring outer diameter≤ 2500mm,
Non-quenched ring our diameter≤ 4000mm,height≤ 500mm
Aluminum forged cylinder ≤5T Out er diameter200- 800mm,length≤ 2000mm;
our diameter 801- 2000mm,length≤ 1500mm;
Long axis ≤8T length≤ 7000mm,diameter≤ 800mm
Backward extrusion Aluminum forged cylinder   Out diameter≤ 830mm,inner diameter≤ 650mm,
length≤ 1800mm
 
 
 

Aluminum Mold Forging Products:

Die forging is the abbreviation of model forging. It is a forging production method developed on the basis of free forging and membrane forging. It is a forging process of metal blank with plastic deformation and filling die chamber under the action of external force, so as to obtain the required shape, size and certain mechanical properties of die forgings.
 
Die forging process can complete the deformation process in one or more die chambers according to the complexity of forging production batch and shape. Die forging has the characteristics of high production efficiency, small machining allowance, low material consumption, simple operation, easy realization of mechanization and automation, etc. It is produced in batches and batches. Die forging can also improve the quality of forgings. Aluminum alloy die forgings are usually carried out on hydraulic forging press.
 
Aluminum alloy die forgings can be divided into two categories according to their shape: equiaxed forgings and long forgings.
 
The equiaxed forgings generally refer to the forgings whose projection on the parting surface is circular or long and whose width does not differ greatly. The main axes of forgings belonging to this category are relatively short, and there is little difference in the size of the forgings projected to be circular or long and wide on the die splitting surface. In die forging, the axis direction of blank is the same as the direction of pressure. Metal flows along height, width and length, which belongs to volume deformation. Before die forging, upsetting blank is usually needed to ensure the forming quality of forgings.
 
 
The axes of long shaft forgings are longer, that is, the length and size of forgings are far larger than their width and height dimensions. In die forging, the axis direction of blank is perpendicular to the direction of pressure. In the forming process, because the deformation resistance of metal along the length direction is much greater than the other two directions, the metal mainly flows along the direction of height and width, and the flow along the length direction is very little.
 
 

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