Drop forging manufacturer


Home » News » Page 6
chinese aluminum forging supplier
Generally, there are two kinds of forging methods of aluminum alloys, namely aluminum hot forging and aluminum cold forging. The difference between aluminum hot forging and aluminum cold forging is the deformation temperature. All the aluminum forging parts made in CFS Forge is closed die hot or cold forged. Closed-die forging is able to shape aluminum material into a wide array of shapes, designed within fairly precise tolerances. This process is a useful way to form small precise aluminum parts. When it comes to large production runs, closed-die forging typically remains more cost-effective than casting method.  Moreover, closed-die forging offers a better surface finish and is more environmentally-friendly.

Compared with aluminum forging companies from developped countries, the manufacturing cost of aluminum forging parts in China is much lower. To save cost, many overseas companies choose to import goods from Chinese aluminum forging suppliers. As one of the largest aluminum forging companies and exporters in China, CFS has the capabilities of forging, machining, surface polishing or anodization of aluminum alloys, which will enable us to supply finished aluminum forging parts to our customers from USA, UK, Canada, South Africa, etc. According to our rich experience in aluminum forging field, here are some attentions to pay to when choosing the right Chinese aluminum forging supplier.

Forging is one of the main manufacturing ways to provide metal blanks for mechanical parts to various industries. The advantage of forging production lies in: it can not only obtain the desired shape, but also improve the internal organization of materials and mechanical properties. For the important mechanical parts with large force and high mechanical performance requirements, most of them are made by forging. Forging parts account for 80% of aircraft parts, 70% of tank parts, 60% of automobile parts. Hydraulic turbine spindle, impeller, rotor, ring guard, etc. in the power industry are all forged.It can be seen that forging production occupies an extremely important position in the industrial applications.

Forged aluminum has the advantages of low density and high strength, so it has been widely used in various industries. Aluminum forging is becoming the main production process of various mechanical parts. Generally, any part forged with low carbon steel can be forged with aluminum alloy in aluminum forging companies. Forged Aluminum parts in various forging equipments such as forging hammer, mechanical press, hydraulic press, die forging, rolling forging and die forging. Generally speaking, aluminum forgings with small size, simple shape and wide tolerance requirements can be easily forged on the forging hammer, but for aluminum forgings with large specifications and severe deformation requirements, hydraulic press is used for forging. Aluminum forgings with large and complex integral structures must be produced by large hydraulic die forging press. For large precision ring parts, precision ring rolling machine should be used for rolling forging.

With the characteristics of low density, moderate strength, corrosion resistance, easy shaping, easy welding, beautiful appearance, durability and easy recycling, aluminum alloy should attract more and more attention in motorcycle industry and its applied range should be expanded in the motorcycle industry. In the 21st century, aluminum alloy motorcycle parts should be vigorously developed based on the above advantages.

Almost all steel parts on motorcycles can be replaced by aluminum alloy materials under the continuous efforts of the related professional and technical personnel in motorcycle industry. In recent years, with the increasing demands of international environmental protection and national and regional government energy conservation regulations, motorcycles are moving toward a tendency of “green motorcycle” that is lightweight, high-speed, safe, comfortable and environmentally friendly. Undoubtedly, it will promote the application of aluminum alloy materials on motorcycles. Forged aluminum alloy is particularly important in its material application.

When it comes to aluminum forging, the most atttactive word is "aluminum". We all know that aluminum becomes more and more popular in forging for its light weight compared to steel and brass. When buyers send a drawing of forged aluminum component to an aluminum forging supplier, the material specification (aluminum alloy) is already clearly marked in the bottom of the drawing. The material selected for aluminum forging will determine the final performance of products. So, it is quite vital to select a suitable alloy before manufacturing.

As a professional drop forging company, CFS Forge has many years' manufacturing and exporting experience in forged aluminum parts. We can supply aluminum forging and machining services with various aluminum alloys. If you are looking for a supplier for your aluminum forging project, pls contact us!

The traditional application of forged aluminum is mainly concentrated on sports cars or vehicles with low fuel consumption. The components produced include pistons, rims, valve shifter levers, suspension parts and other important structural force parts. The production cost of forged aluminum parts increases due to the high material cost and complicated manufacturing process, which hinders the applications of forged aluminum parts. At present, many countries such as USA, Canada, Australia, South Africa, etc are actively researching and developing high-strength materials as well as forging processes so as to reduce the production cost of forged aluminum parts.

CFS Forge is the professional aluminum forging company for custom forged aluminum parts in China. Just pls contact us if you have any forged aluminum project.

Closed die forging is generally only applied in automotive application, such as automotive gearboxes, housings, flanges, etc. Closed die forging process can greatly improve the material utilization rate and lengthen the life of automotive parts for its good strength. At the same time, it reduces the production cost, thus, it is an ideal target for automotive parts production.

Above introduces the closed die forging process of automotive parts and comes up with new ideas in many designs and it was applied in many fields. This forging process can be widely used in other applications as well. CFS Forge can make closed die forgings in various metals, including steel, aluminum and brass. Any inquiry on closed die forging, pls contact us for a free quote right now!

Vehicle weight reduction is essentially the lightweight of automobile parts. With the forged aluminum alloy wheel hubs, it can greatly reduce the weight of the auto body. For instance, a 40-ton heavy-duty truck and semi-trailer transport system has a total of 22 wheel hubs. It will has 24 wheel hubs if the front and rare spare tires are considered. The vehicle weight will be reduced by nearly 600kg if we replace the frequent used steel hubs with aluminum forged ones. What is more, aluminum alloy materials have good heat dissipation, which can slow down the aging speed of tire rubber to a certain extent. Trucks, buses and trailers equipped with forged aluminum alloy wheels can save 26% of tire consumption.

A plenty of commercial vehicles are equipped with aluminum forged wheels in America and Canada. This also occurs in Europe, South Africa and Australia. Along with the development of China's automobile lightweight technology and the rising fuel prices in recent years, the replacement of traditional automobile wheels with aluminum alloy wheels has become a trend. As a professional drop forging manufacturer, we would like to describe a practical closed die forging process of aluminum alloy wheel hub, by using UG three-dimensional modeling, the forgings are designed and then the wheel hub closed tooling formwork is designed. Then the 3D model is imported into the Deform simulation analysis software to conduct the forging simulation. Based on the analysis of the simulation process, the blank displacement, the filling degree of the material as well as the temperature distribution, the forging general process is preliminarily obtained.

There are usually four kinds of defects caused by improper forging process of aluminum alloy:

1. Large-grained
Due to too high initial aluminum forging temperature and insufficient deformation degree, or too high final forging temperature, or deformation degree fell into the critical deformation zone. Aluminum alloy deformation degree is too large, forming texture; Superalloy deformation temperature is too low, the formation of mixed deformation microstructure may also cause coarse grains.

The ductility and toughness of aluminum forgings will be reduced and the fatigue performance will be obviously decreased. Uneven grain size: refers to the fact that the grain size in some parts of the forging is particularly large and smaller in some parts. The main reason for the unevenness of grains is that the unevenness of deformation in different parts of the blank results in different degree of grain breakage, or the degree of deformation in local areas falls into the critical deformation zone, or the local processing hardening of superalloy, or the local coarse grains in quenching.Heat resistant steels and superalloys are particularly sensitive to uneven grain size. The unevenness of grain will obviously decrease the endurance and fatigue performance of aluminum forgings.

Besides the control of aluminum forging temperature, the design of aluminum forging component is also very important. Parts design mainly includes the standards for machining allowances, parting line location, draft angles, corner and fillet radii for the aluminum forging.

Machining Allowances

Recommended machining allowance for aluminum forging is given in below Table.


Minimum Finish Stock per 
Less than 200
200 to 400
400 to 600
600 to 900
More than 900

As shown above, the allowance is referred to as minimum finish stock per surface and is related to the largest dimension of forging. Machining allowance may be applied over the entire forging or to the surfaces to be machined. The finish allowance is applicable to all metals.

Most of the aluminum forgings are produced under hot forging condition. During aluminum forging process, the temperature used is a critical factor, which should be controlled strickly, higher or lower temperature will all easily cause forging defects. Before forging, aluminum alloy billets are heated fairly below their solidus temperature, because the heat generated during forging deformation will also cause a temperature rise in the material. If the heated billet temperature and the temperature rise during drop forging exceed the melting temperature of aluminum alloys, the aluminum billets will start to melt, and severe cracking of forgings will be seen. This effect is mostly significant in high-speed forging, such as on a mechanical press or forging hammer, because the heat generated has little time to diffuse into the dies. This reduces the complexity of the shapes that can be produced on high-speed forging equipment and potentially increases the amount of machining required.

On the other hand, with the temperature increase of aluminum billets after heating, the forgeability of all aluminum alloys will also be improved. As the forgeability of each aluminum alloy is different, the heating temperature required during hot forging process is also different. Below picture shows forgeability of different aluminum alloys with respect to temperature changes are given. From this picture we can well see that as the temperature increases forgeability increases. 
As you know, forging is better for applications. 6061 and 7075 are the two common used alloys in aluminum forging. When it comes to 6061 aluminum alloy or 7075 aluminum alloy for a forging project, it is necessary to understand their differences and applications. It saves you trouble when looking to balance performance with cost. For most general purposes, both alloys can get the job done. But the differences in composition, mechanical properties and cost can help you choose what fits your forging needs best.

The chemical differences between 6061 and 7075 aluminum forgings aren’t readily visible. Both contain magnesium, silicon, copper, iron, zinc, titanium, manganese and chromium. The difference is how much of each is contained in each. 6061 aluminum forging contains less zinc than 7075. Meaning that while 6061 aluminum forging provide superior welding abilities and workability, it doesn’t boast the same high strength and stress resistance as 7075. Looking for a good aluminum forging company in China for your item? Pls contact CFS Forge!