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Distortion in Forged Rolled Rings

The thermal and rolling treatment of forged rolled rings sometimes leads to the creation of residual stresses, causing dimensional distortion in the results. However, there are tons of corrective measures employed by forging industries to address this concern. Ongoing studies are seeking to base newly-found corrective measures on the laws of physics.

How does Dimensional Distortion Happen?

Ring Rolling Process

First, the rings and other metal components are rounded and cut to how much it weighs. It is then processed to reach the intended integrity, directional grain, and other specifications. It is then punched and pierced to create a ring.

After that, it is placed on the ring mill to be rolled. The idler roll applies pressure against the drive roll and slowly the ring diameters are increased. Continued pressure is applied, and this reduces the wall thickness.

The axial rolls control the height as it is being rolled and this is repeated until the proper size and specifications are reached.

Distortion is Not the Only Problem

Once the metal components have been rolled at a certain forging temperature, most of them are heat treated. Due to this method, some parts of the components become ovular and distorted.

This occurs more often in huge metals with outer-diameter to wall-thickness proportions. More so, distortion is the only concern resulting from this method. Despite furnishing results that meet dimensional tolerances, residual stresses may still happen even after the product has been shipped to the customer.

The reason is that succeeding machining processes conducted by customers or other metal-production companies may cause extra distortion and deformation to the product.

Preventive Measures Must be Employed

In light of the intricacy of the issue, various ring-rolling companies approach it with only corrective measures while disregarding the essential preventive measures. There are companies which manufacture the metal components with great tolerances so it can be earlier manufactured to its final dimension and preventing any possible distortion.

Others employ corrective ring distortion measures through expansion and compression processing, partially relieving the components of residual stresses.

Where can I find forged rolled rings?

Looking for Forged Rolled Rings with Minimal Distortion?

To produce rings and other metal parts with minimal distortion, it’s important that the ring-rolling company employ both corrective and preventive measures, if possible. Contact Ferralloy Inc. to get your quality rolled rings!

Seamless Rings: Are Seamless Rings Right for You?

The process of forging seamless rings plays a significant role in the manufacturing of other important components. Forging is a technique of manufacturing strong, typically metal, components for use in machinery. The foraged items can be made for when apparatuses are required for the expansion of wind turbines or high-quality gears for mechanics. Seamless ring forging is used to manufacture durable, high-quality products.

The What And How of Seamless Rings

Materials Used

A distinguishable aspect of seamless rings is dependent on the material used. With every tool and metal component in the manufacturing industry, it’s vital they are created to be almost indestructible. This includes literal hardness, strength, and the ability to resist wear and tear as they age.

Among the three elements, the most important is the ability to withstand wear and tear. Because most of these products will be used in engines and machines, they will get beat up pretty well. These tools and components must also sustain heat as these are exposed to high temperatures.

Types of Steel

How are seamless metal rings made?

The types of steel used for seamless rings are:

  • Stainless steel
  • Alloy steel
  • Carbon steel

Stainless steels contain a higher amount of chromium than other types of steel. As a result, seamless rolled ring forgings made of this type of steel are corrosion resistant and therefore, should not rust.

Alloy steels have great strength, hardness, wear resistance, and enhanced toughness. However, additional heat treatment may be required in order to achieve these attractive properties.

Lastly, carbon steels possess properties that are similar to iron. Within carbon steels, there are additional classifications: low carbon steel, medium carbon steel, and high carbon steel. The lower the carbon content, the cheaper and easier it is to shape. 

Process

How are seamless rings made?

The seamless ring process begins by taking a circle-shaped metal that has already been pierced to look like a doughnut, thus the ring name. The shape is then heated beyond the required temperature for recrystallization. Finally, it is shaped into the desired shape.

Get Quality Seamless Rings

Ferralloy Inc. is a global supplier of engineered products and services, including ring rolling. We provide the metalworking industry with castings, fabrications, forgings, machining, and related products and services. Contact us today to get exceptional seamless rings!

Seamless Rolled Ring Forgings | What Are the Best Types of Steel?

Forged parts are not all made using the same material. Rather, you are able to choose from a plethora of materials, ranging from aluminum to steel and everything in between. The choice of which particular material you use for your forgings is based on the specific application and need of the part. Frequently, companies turn to steel for seamless rolled ring forgings. However, once you decide on steel, you still have another decision to make: which type of steel? Keep reading to learn about three popular types of steel so you can decide which is best for your specific needs.

3 Types of Steel for Seamless Rolled Ring Forgings

  1. Carbon Steels

Carbon steels possess properties that are similar to iron. Within carbon steels, there are additional classifications: low carbon steel, medium carbon steel, and high carbon steel. The lower the carbon content, the cheaper and easier it is to shape. Meanwhile, the higher the carbon content, the stronger the part.

  1. Alloy Steels

Alloy steels have great strength, hardness, wear resistance, and enhanced toughness. However, additional heat treatment may be required in order to achieve these attractive properties.

  1. Stainless Steels

Stainless steels contain a higher amount of chromium than other types of steel. As a result, seamless rolled rings forgings that are made of this type of steel are corrosion resistant and do not rust.

No matter if you are interested in using seamless rolled ring forgings made out of carbon steel, alloy steel, stainless steel, or any other type of steel or material, Ferralloy, Inc. can provide it for you. We supply top-notch seamless rolled ring forgings in diameters up to 110” from carbon, alloy, and stainless steel, as well as many other materials including titanium and nickel alloys. Get your metal parts delivered on time and at a competitive price by contacting Ferralloy, Inc. today!

where can i get high quality seamless rolled ring forgings

Seamless Rings | Frequently Asked Questions

Seamless rolled rings are one of the most widespread components in metalworking today. These cylindrical metal parts, which are relatively short in height and possess a hollow middle section, are so popular that it’s hard not to run into these components on a daily basis. A wide range of industries utilize rolled rings, from the nuclear industry to pharmaceutical companies and everything in between. However, despite being so prevalent, chances are that you still have a plethora of questions regarding this type of metal component. But don’t worry, we are here to help! Keep reading to finally get the answers to some of the most frequently asked questions about seamless rings.

How Are Seamless Rings Made?

Seamless rolled rings are produced through a process called rolled ring forging. Rolled ring forging consists of taking a circular metal preform and piercing it to form a doughnut shape. The ring is then heated and rotated to reduce its wall thickness and increase its diameter until the desired shape and size is achieved.

What Materials Are Used for Seamless Rings?

Seamless rolled rings can be made from any forgeable material. These materials include alloy steels, stainless steel, carbon, Haynes, Inconel, superalloys, aluminum, and more. The ability to create seamless rolled rings out of a wide range of materials is one of the many reasons why it is such an appealing metal part.

Where Can I Get the Best Seamless Rings?

If you are interested in using the best seamless rings for your next project, Ferralloy, Inc. can help. We are an international company serving the global marketplace by offering competitively priced, engineered metal products to companies throughout the world. Become one of our satisfied customers by getting high quality seamless rolled rings that fit your exact needs and specifications from us today. Contact Ferralloy, Inc. online to learn more!

what are seamless rings

Dryer Drum Tires

Ferralloy, Inc. is shipping 2 sets of rolled ring forgings to a customer in the cement industry.  The seamless rolled rings sets are 80 x 70 x 7” and 78.5 x 72.5 x 6.5”, rough machined to a surface finish of 125 RMS from 4140 material.

Rolled ring forging process is a specialty of Ferralloy Inc!

These forged rings are components of a dryer drum used in the cement industry to process cement powder.

For more information about the processes behind cement manufacturing see this link!