Ring rolled forgings or the seamless rolled rings, formed by the open die forging and ring rolling processes, makes for very important components in major heavy industries. It involves the shaping of an upset circular perform pierced at the center through the open die process and then placing it over the rolling mills. The work piece is then heated to a temperature of about 1900 to 2400 degree Fahrenheit, while constantly rotating under the pressure of the mandrel roll and the drive roll to reduce the wall thickness and increase the ring diameter, to form the seamless rolled ring.
Stainless steel, alloy steel, aluminum steel, brass alloy, titanium alloy and seamless rolled rings are the main variants of the rolled rings. They also vary in diameter, weight and height based on customer requirements. These custom forged rings are made to meet high strength demands, be it in terms of impact, stress or load. Because of their superior build mechanism, they are advantageous in a number of ways:
Directional: In forging, the heated metal is mechanically deformed under controlled conditions. This enables flow and grain size to be uniform. The stock is also pre-worked on, to remove porosity and defects enabling superior mechanical and metallurgical pros in terms of its directional strength.
Structural: By segregating non-metallics and alloys, and eliminating internal gas pockets and voids, forging, enables chemical uniformity, therefore requiring part inspection requirements, easier heat treatment and optimum performance of parts under high tenacity.
Impact: Appropriate grain flow orientation maximizes the product's ability to withstand maximum load, impact or stress requirement. Forging attributes uncompromising integrity of the product primarily because they are produced under controlled conditions.
Size: Sizes vary from a few inches to 300 inches in diameter with weights between single pounds to above 400,000 pounds. Forging in particular, allows for ring sizes that can otherwise not be manufactured by other metalworking methods.
Shapes: Forging allows for a variety of shapes limited by the supplier's imagination only, ranging from bars, rings, shafts to specialized shapes like single and double hubs, varied I.D./O.D. hollows, etc with the aid of combined processes like sawing, torch cutting and machining.
Materials used: The process of forging can be carried out with a wide range of ferrous and non-ferrous metals to achieve the required metallurgical property through a broad selection of alloys, working methods, temperatures, and post forming techniques.
Economies of costs
Materials: forging requires less material at the start of the manufacturing process, as compared to other production processes, enabling lower material costs.
Machine: Using close-to-finishing size materials for the production, effects saving in terms of reduced lead time, machining and wear and tear of the equipment.
Rejections: Use of cleaner material for forging insures better structural integrity. Additionally, the final product being produced weld-free, rejections are virtually eliminated.
Production: Forging facilitates manufacture of a wide variety of grades of the final forged product because of its ability to work with different size of billets or ingots. Therefore production becomes quick and economical.
With vital applications in the power generation, aerospace, heavy equipment and mining industry, the ring rolled forgings, are advantageous both in terms of strength and economy in manufacture.
For more information about, ring rolled forgings & seamless rolled rings from CHW Forge visit: http://chwforge.com/our-products/
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