Vertical Metal Ring Rolling Forging Machine Flange Rolling Forming Equiment
Ring rolling (also known as ring rolling, ring rolling, reaming and ring rolling) is a kind of plastic processing technology with the help of ring rolling machine (also known as ring rolling machine, ring rolling mill and ring reaming machine) to make the ring produce continuous local plastic deformation, so as to reduce the wall thickness, expand the diameter and form the section profile. The process is suitable for the production of various shapes and sizes of ring mechanical parts, such as bearing ring, ring gear, flange, wheel hub, thin-walled cylindrical parts, wind power flange, high neck flange and other seamless ring forgings. Ring products are widely used in machinery, automobile, train, ship, petrochemical, aviation, aerospace, atomic energy, wind power and many other industrial fields. Ring materials are usually carbon steel, alloy steel, stainless steel, titanium alloy, copper alloy, aluminum alloy, cobalt alloy, nickel base alloy, superalloy, etc.
It is high quality iron ring rolling making machine is widely used in manufacturing bearing outer ring,gearing blank,pipeline
flange,welding neck flange in the fields of machinery,auto,train,ship,petroleum and chemicals,aerospace,atomic energy,wind generator.It has advantages of rolling and forming at one time,high production efficiency,improve blank precision,reduce turning remainder,improve steel utilization,improve cutting performance,improve inner quality of forging, good economic benefit.
Compared with open die forging, ring rolling close die forging has advantages as follow:
1.High efficiency.It is 3-4 times than open die forging,the yield is dozens of times.Large,middle,small scale circular forgings can be machined.
2.High material utilization.high dimension precision,forging tolerance is 1/3-1/4 time than open die forging.If adopt coining, the forging tolerance is down to 0.1-0.05 mini,save 30%-60% material,and machining time,reduce the cost,have good economic benefit.
3.The ring rolling forgings have smooth surface, using precision forging can replace machining.
4.Good product quality. Rolling of metal fiber ring continuously distributed in the circumferential direction , and the force and wear parts used to adapt. In most cases, the internal ring rolling dense , fine grain size , mechanical properties significantly higher than other methods for processing the ring
5.It can machine complicated shaped forgings.It is difficulty to realize in open die forging equipment.
6.Small equipment tonnage,large processing range.Ring Rolling partial pressure forming process is a continuous accumulation of small deformation , small contact area between the work piece and the mold, so a small force needed to deform , small equipment tonnage.
[Working Principle]
Heat the ring blank to 950-1050ºC,and put it around the back-up roller,then make the rotating roller down to rolling work piece,the thickness of work piece decreases,perimeter extends and the hole expands.The roller stabilize and full circle in the processing.The roller begin to rotate when predefined dimension is finish,meanwhile the roller 1 up to original position,the processing is finished.
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