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Closed Die Forging vs Open Die Forging

Most manufacturers use the closed die forging technique when they need to forge metallic parts that are small or medium-sized. The fact that multiple elements and factors are being merged during the process of forging leaves us no reason to wonder why this technique is able to generate results that are geometrically accurate. However, before resulting in a closed die forging technique, it is essential to first determine the difference between open die or closed die forging.

Common Information to Know About Die Forging

What is it?

Free forging, commonly known as open die forging, is the method of deforming the metals between the several dies. It is called open die forging since the multiple dies do not entirely enclose the metal. These dies often hammer the metal through a chain of movements. It tends to alter the dimension of the metals until the dies reach the desired shape.

On the other hand, closed die forging is also called an impression forging. It takes advantage of a specific amount of pressure to force the metal piece into an encircled or bounded die. This process uses an induction heating furnace with medium frequency to heat the metal to reach the desired pattern.

Advantages and Disadvantages

In whatever you purchase or manufacture, one of the important factor to look into are the advantages or disadvantages of the product. Die forging is the perfect method to achieve maximum tolerance. When it comes to open die forging, it is cost-effective since it uses less material waste. Additionally, it offers reduced chances of voids in your final forging, can increase strength to achieve longer product life, improved microstructure, and has an excellent fatigue resistance.

In contrast, closed die forging offers excellent net shapes, tighter tolerances, and better surface finish. It is resorted to so there can be no material limitation and it will be economically beneficial when it comes to large runs.

who offers the best closed die forging?

Want to Know More About Closed Die Forging?

If you need more details about open and closed die forgings, contact Ferralloy, Inc. today!

Seamless Rolled Ring Forging | The Basics About Manufacturing Forged Steel Rings

Are you working on a project that requires the use of seamless rolled ring forging? The process of creating a seamless rolled ring involves the creation of a circular piece of metal that’s pierced at the center. Through open die forging, the metal is formed into something that’s shaped like a doughnut before it’s heated between 400 and 700˚C. Next, it’s placed on a mandrel or idler roll that increases the steel ring’s diameters and reduces the thickness of its walls. As the idler or mandrel roll pushes the ring’s walls outward, a wide range of shapes and sizes can be formed.

What are the Properties of Rolled Ring Forging?

The process that involves heating the doughnut-shaped metal above recrystallization temperature significantly improves the metal’s grain pattern. This increases the strength and resistance of the seamless rolled ring forging. Furthermore, the durability of this product allows it to maintain its shape when it is exposed to extreme fluctuations of temperature. Lastly, seamless rolled rings are also known to be cost-effective because they require less labor, machining, and raw materials compared to other alternatives.

What are the Common Applications of Rolled Rings?

In case you’re wondering, these strong, durable, and cost-effective metal components are widely used in various industries such as aerospace engineering, mining, as well as power generation. They are also extremely useful in manufacturing custom pressure vessel components which include valves, couplings, bearings, and forged flanges.

who offers seamless rolled ring forging?

Are You Interested to Know More About Seamless Rolled Ring Forging?

If you need more information about seamless rolled ring forging or other engineered products or services, don’t hesitate to get in touch with us at Ferralloy, Inc.  We are the leading supplier of rolled ring forgings in diameters up to 110” from carbon, alloy, and stainless steel. You can expect us to vary the metallurgical properties for your unique application through alloy selection and adjustment of thermal processing diameters. Call us today!

Closed Die Forging | Why Closed Die Forging is the Best Manufacturing Technique

Most manufacturers use the closed die forging technique when they need to forge metallic parts that are small or medium-sized. The fact that multiple elements and factors are being merged during the process of forging leaves us no reason to wonder why this technique is able to generate results that are geometrically accurate. Here are some of the reasons why forging is one of the most popular options in the metalworking industry:

Strength and Durability

In terms of strength and durability, the finished products of closed die forging come first. Thanks to the internal structure, the continuity of the grain is maintained. If you’re interested in producing high-performance products that are both strong and durable, use the close die forging manufacturing technique.

Production of Net Shapes or Near Net Shapes

Forging dies are typically precision-machined that’s why their finished products are the net shape or near-net shape. When you use forging, less post-forging operations are required because near-net shape products are produced. In other words, you’ll save a significant amount of time and effort.


Since forging creates products that feature close tolerance with optimum surface finish, the need for post-machining operations and finishing is greatly reduced. This implies that you’ll get to spend less money for mass volume production.

Versatility with Components

One of the best things about forging is its versatility and adaptability with its components because the manufacturer can use any form of raw metal or even alloys using this method. It doesn’t matter if the user needs small or medium-sized metal parts – closed die forging can easily produce them.

what is closed die forging?

Do You Need More to Know More About Closed Die Forging?

When your requirement dictates closed die forgings, contact Ferralloy, Inc. today. We can help you determine your best, low-cost solutions.

Closed Die Forging | Applications for Open and Closed Die Forging

Over the years, the forging industry has tremendously evolved. The use of various techniques and processes gave rise to applications in industries such as construction, agricultural, automotive, machinery, and so much more. Furthermore, the two most popular forms of forging are open die forging and closed die forging. Although both are rooted in the fundamental forging process that involves beating a piece of metal until the desired shape, strength, and granular level are achieved, these two processes have branches in different directions.

What is Open Die Forging?

Sometimes called free forging, the open die forging process involves the placement of a piece of metal between multiple dies that don’t entirely close the metal. Through a series of movements, the dies hammer and stamp the material to change its dimensions until the required shape is attained.

What is Closed Die Forging?

Closed die forging is also called impression forging. It uses pressure to compress a piece of metal so that it will fill an enclosed die impression. It also involves the use of a medium frequency induction heating furnace for applying heat to the metal until the desired shape is achieved.

What are the Applications of Both Open and Closed Die Forging?

The end products of both processes look different from each other in terms of size. The forging process alters the metal at a granular level as continuous force is being applied via the beating process. Since open die forging doesn’t involve a fixed die size, this method works best for creating larger and heavier metal components that don’t require much machining to produce ultra-finished products. Among these large components are rollers and shafts that are used in railways. On the other hand, closed die forging is ideal for applications that require a high degree of precision such as forged fittings or automotive parts.

closed die forging


Looking for More Information About Closed Die Forging?

If you need more information about open and closed die forgings, contact Ferralloy, Inc. today. We’re the leading global supplier of engineered products and services to a diverse metalworking customer base.

Rolled Ring Forgings | The Fundamentals of Seamless Rolled Ring Forging

Do you need parts for your flanges? Are you trying to work on a pressure vessel connections forging projects? If your answer is yes to these questions, you’ll need to know more about seamless rolled ring forgings that are made of steel because they’re perfect for both situations.

How Forged Steel Rings are Made

The process of manufacturing seamless rolled ring forgings starts with a circular piece of metal that’s been cut to the required weight before being rounded out. Through the open die forging process, the circular metal is then pierced at the center to produce a hollow shape of a doughnut. Before it is placed on the mandrel or the idler roll, it needs to be heated above recrystallization temperature which is usually between 400 and 700˚C.

The Next Steps

Once the heated metal is on the roll, the walls of the doughnut are pushed outward in order to reduce the thickness of its walls and increase the steel ring’s diameters. In case you’re wondering, the roll has the capacity to produce a wide array of shapes as well as proportions. In most cases, seamless rolled ring forgings that are made of steel have a thickness-to-height ratio between 1:16 and 16:1.

What are the Properties of Seamless Rolled Ring Forgings?

Seamless rolled ring forgings are known for their higher strength and resistance because the steel’s grain pattern is significantly improved by the recrystallization process. Furthermore, these forged steel rings are also durable because their ability to resist deforming from heat allows them to maintain their shape even when they’re subjected to drastic temperature fluctuations. Also, seamless rolled ring forgings are cost-effective because they require less machining, raw materials, and labor compared to similar components because the steel ring’s shape doesn’t change much during the entire duration of the manufacturing process.

where are the best rolled ring forgings?

Need Rolled Ring Forgings?

If you have more questions about rolled ring forgings, call Ferralloy, Inc. today. We’re your comprehensive engineered product resource.

Rolled Ring Forgings | What to Consider for Forging Design

When you want to produce metal shapes using localized compressive forces, forging is your technique of choice. The popular use of forged metal products in various industries is highly attributed to the engineering perfection and technical capability of the forging industry. Moreover, different types of machine forging processes produce cold forgings, impression die forgings, open die forgings, and seamless rolled ring forgings that apply in the manufacturing industry. However, to achieve successful and effective forging operations, proper forging design must be ensured. Here are the factors you need to consider for forging design:

Shape of the Forged Part

Although it’s possible for the forged components to be manufactured in any shape, the final cost of the tooling is dependent upon the shape of the forged part. Furthermore, with simple forging shapes, the flow of the material being used will be smoother.

Estimation of Total Energy Required and Forging Load

It’s important to consider the details and dimensions of the machining operations, machining locations, and the functions of the forged part when a forging design is being developed. During the designing process, you’ll also need to think about the number of your required materials and the energy that’s required for the machine forging operation. You can have a good idea about the design’s cost-effectiveness when you analyze the forging load and the energy requirement.

Materials Used for Manufacturing the Component

Forging designers choose raw materials can pick raw materials from a wide array of ferrous and non-ferrous alloys such as stainless steel, aluminum, copper alloys, and carbon, micro-alloy, and alloy steel.

The Bottom Line

In a nutshell, you can ensure the precision of your forging design if you consider the surface finish, overall geometry dimensional tolerance, and the compliance with the requirement.

where is the best seamless rolled ring forgings?

Do You Need Rolled Ring Forgings?

Ferralloy, Inc. is a premier supplier of open die, closed die, cold headed, and rolled ring forgings. Contact us today to learn more about our services.

Rolled Rings Forgings | Design Factors to Consider When Purchasing Forgings

Have you made the decision to purchase a forging? Whether you’re thinking about buying seamless rolled rings forgings, impression die forgings, cold forgings or open die forgings, aside from having basic knowledge about the forging process, you’ll need to consider your ideal design so that you’ll get the best bang for your buck. Otherwise, you’ll cost your business a lot of money and a grueling buying experience is bound to happen. Check out these important design factors.

Selection of Material

In order to select the best material that can achieve the desired performance, heat treatability, forgeability, machinability, and cost, service requirements of the part being forged must first be established. Using these requirements as the realistic basis for mechanical properties such as hardness, impact, etc. will lead you to the best price.

Configuration of Parts

A forger may need to make small changes in a component’s shape. To do so, its tooling and processing requirements need to be checked so that these alterations will be made possible without affecting the part’s function.

Dimensional Tolerances

In holding tight as-forged tolerances, a considerable cost is involved. Make sure that the forger can help you in the evaluation of trade-offs between reduced machining and increasing die and processing costs.

Surface Finishing

Almost all forging companies possess machining capabilities and some of them even offer finishing services. You can save on material and machining time if the forger can design the desired forging around the finished part.

where are the best rolled rings forgings?

Are You Looking to Purchase Rolled Rings Forgings?

Knowing the mentioned design points will help you make wise buying decisions. If you need more information about rolled rings forgings, get in touch with a global supplier of engineered products – Ferralloy, Inc.! We offer total supply chain management to a diverse metalworking customer base. Contact us today to know more about our products and services!

Open Die Forging | FAQs About Open Die Forging

If you’re looking to find answers to your questions about open die forging, then you’ve come to the right place. For you to understand why you should buy metal forgings, let’s take a closer look at this type of process.

What is Forging?

Forging refers to the process involving the shaping of metal by applying compressive impact force by hand or certain mechanical manipulators after this has been heated.

What is Open Die Forging?

The open die forging process involves the shaping of hot metal parts through the use of net shape dies. Forgings of this type can be forged from a few pounds to over a hundred tons and over 80 feet long.

What are the Common Forging Products?

The process of open die forging typically produces round, rectangular, square, and hexagonal bars, beams, as well as other basic shapes. Common products formed include hubs, spindles, step shafts, mandrel, metal shells, pierced blanks, and simple pancakes forgings.

What are the Advantages of Forging?

One of the advantages of open die forging is the fact that it produces forging that has unique physical properties because the metal’s physical properties are enhanced and improved during the forging process. This means that its density is increased as its grain structure is being refined – both contribute to the metal’s overall strength. Furthermore, the metal’s grain flow is altered in such a way that it counteracts, accepts, as well as neutralizes a completed part’s or assembly’s stress load burden.

Where can I get open die forging?

Looking for More Information About Open Die Forging?

To get further details about open die forging, contact Ferralloy, Inc. today! We are here to help you find exactly what you are looking for. Reach out to one of our professionals today by visiting our website or giving us a call.

Closed Die Forging | The Advantages of Closed Die Forging

The process of closed die forging involves the use of two or more dies for production or tooling. A CNC machine is required to be highly accurate in order to manufacture these dies. The proper temperature has to be reached when the billet is heated up in order to come up with the desired form before it is hammered or pressed between both dies. In case you’re not aware, closed die forging is usually used for countless metal parts that are of extreme importance for many good reasons. If you want to know what they are, check out its economic advantages.

Closed Die Forging Helps You Save on Material Cost

One of the biggest advantages of forging is the fact that it produces parts that are near net shape. This implies that the waste of raw material that is put into production is greatly reduced. Therefore, you’ll get to save a lot of money on material cost.

It Requires Less or No Machining

To give you an idea, a ring can be created by either closed die forging or machining. When it is produced via machining, the materials at its corners as well as the ring’s center will be put to waste. On the other hand, with closed die forging, the parts produced will be closer to the desired shape, in good surface finish and tight tolerance – this, the wastage of materials will be minimal.

The Rejection Rates of Parts is Low

If the raw material is of good quality, closed die forging can create parts that have no internal defects and good mechanical properties. This translates into low rejection rates and more economic advantage.

Where are the best closed die forging?

Looking for Closed Die Forging?

If you have more questions about the closed die forging process, it’s best to get in touch with a trusted comprehensive engineered product resource – Ferralloy, Inc. We supply top quality products and services to a diverse metalworking customer base. Call us now!

Forged Rolled Rings | Why You Should Use Rolled Ring Forging

Forged rolled rings are used and produced by machine shops, pharmaceutical companies, the nuclear industry, and other sectors. In case you’re wondering how these are formed, the process of rolled ring forging starts with a circular metal preform that’s hollow at the center, resembling the shape of a doughnut. Next, heat is applied to this ring while it is being rotated to reduce the thickness of its walls and increase its diameters. Check out the reasons why you should be using rolled ring forging:

It Offers Strength and Reliability

Did you know that forgings can maintain their strength through fluctuations of high temperatures? This is the reason why they are much stronger than other components. They’re also very reliable because of the fact that the grain pattern that was used in creating the rolled ring forgings provides them with more resistance and strength.

It’s Cost-Effective

In case you’re not aware, Forged Rolled Rings closely match the outline of the finished shape. Since rolled ring forging requires less machining, they’re manufactured at a lower cost compared to other similar products.

It Gets Better Under Heat

With Forged Rolled Rings, you can be sure that it can withstand the maximum level of heat. You won’t have to be extra careful with Forged Rolled Rings when you apply heat on them because unlike other components, they don’t easily melt or get deformed. In other words, it would be much easier to predict how they would react to heat.

A Wider Range of Materials

You’ll be amazed at the wide array of forgeable material that you could use when you create Forged Rolled Rings. They can be made from alloy, carbon, stainless steel, and aerospace metals. The mere fact that they’re versatile makes them the most sensible solutions and answers to manufacturers who are looking for components in various markets including chemical and refinery industries as well as power generation.

where is good forged rolled rings?

Where to Find Forged Rolled Rings

If you are looking for Forged Rolled Rings, get in touch with Ferralloy today. Our commitment to high-quality engineered products and services are evident from our diverse metalworking customer base. Contact us today for more information.