Product Description and Process
rolled ring forging process large forging parts
Production process: metal hot forging process
Machining process: CNC machine, machining center, lathe, mill machine, drill machine, etc.
Surface treatment process: paint coating, electrophoretic coating, electrogalvanizing coating, black oxide coating, powder coating, etc.
Product Material and Use
Normally produce with low carbon steel, medium carbon steel, low alloy steel, such as 1020 steel, 1035 steel, 1045 steel, 16Mn, Q235, Q345, A105, 20MnMo, 35Crmo, 42CrMo, etc.
The steel forging products are widely used for auto-car parts, truck parts, train parts, vehicle components, construction machinery components, other machinery components, etc.
What is Seamless Rolled Ring Forging?
In this blog post, we’ll look at seamless rolled ring forging: what it is, what it’s used for, and the industries in which you’ll find it.
Seamless forged rings are created through a process called ring rolling, which uses a machine called a rolling mill. The rolling mill can generate rings of a range of diameters and weights.
The process starts with a circular metal piece that is pierced to form a doughnut-shaped component. After this ring is formed, it’s heated to recrystallization temperature. From there it’s placed on an idler roll and moves towards a drive roll. This step causes the ring to rotate and increases their diameter and the wall thickness of the rolling rings.
Seamless rings are produced using a range of configurations: tall cylinders, smaller parts resembling washers, etc., manufactured using a shaping tool.
Seamless rolled rings are used for:
You’ll find them being used in the mining, power generation, and oil industry, as well as by the military. They help power rock crushing equipment, jet engines, windmills and railways.
If you’re interested in learning more about seamless rolled ring forging, we can help.
Seamless Rolled Ring Forging Process Operations
1. The ring rolling process typically begins with upsetting of the starting stock on flat dies at its plastic deformation temperature - in the case of grade 1020 steel, approximately 2200 degrees Fahrenheit.
2. Piercing involves forcing a punch into the hot upset stock causing metal to be displaced radially, as shown by the illustration.
3. A subsequent operation, shearing, serves to remove the small punchout ...
4 ...producing a completed hole through the stock, which is now ready for the ring rolling operation itself. At this point the stock is called a preform.
5 The doughnut-shaped preform is slipped over the ID roll shown here from an "above" view.
6. A side view of the ring mill and preform workpiece, which squeezes it against the OD roll which imparts rotary action...
7. ...resulting in a thinning of the section and correspondence increase in the diameter of the ring. Once off the ring mill, the ring is then ready for secondary operations such as close tolerance sizing, parting, heat treatment and test/inspection.