Metal RollingNEED MACHINES AND EQUI

Metal Rolling


NEED MACHINES AND EQUIPMENT?
HIGH QUALITY--LOW COST
SHEET METAL
CUTTING MACHINES

SHEET METAL
PUNCHING MACHINES

SHEET METAL
BENDING MACHINES

PLATE ROLLING
MACHINES

IRON WORKERS

INDUCTION
FURNACES
HYDRAULIC PRESSES
(GENERAL)

DEEP DRAWING
PRESSES

FORGING PRESSES
(hot/cold)

EXTRUSION PRESSES
(hot/cold)

INDUCTION FURNACE
SYSTEMS FOR FORGING
AND EXTRUSION



CNC MILLING
MACHINES

CNC LATHES

MACHINING CENTERS

CNC EDM WIRE CUTTING
MACHINES

CNC EDM DIE SINKING
MACHINES

INDUCTION TUBE AND
PIPE BENDING
MACHINES(2'-30'DIA)


WE CAN PROVIDE MACHINES
IN SIZES FROM SMALL TO VERY LARGE:

IF YOU WANT TO OPTIMIZE YOUR MANUFACTURING PROCESS
WITH THE RIGHT MACHINERY,
THEN TALK TO THE EXPERTS.
EMAIL: [e-mail]

Metal rolling is one of the most important manufacturing processes in the modern world. The large majority of all metal products produced today are subject to metal rolling at one point in their manufacture. Metal rolling is often the first step in creating raw metal forms. The ingot or continuous casting is hot rolled into a bloom or a slab, these are the basic structures for the creation of a wide range of manufactured forms. Blooms typically have a square cross section of greater than 6x6 inches. Slabs are rectangular and are usually greater than 10 inches in width and more than 1.5 inches in thickness. Rolling is most often, (particularly in the case of the conversion of an ingot or continuous casting), performed hot.






At a rolling mill, blooms and slabs are further rolled down to intermediate parts such as plate, sheet, strip, coil, billets, bars and rods. Many of these products will be the starting material for subsequent manufacturing operations such as forging, sheet metal working, wire drawing, extrusion, and machining. Blooms are often rolled directly into I beams, H beams, channel beams, and T sections for structural applications. Rolled bar, of various shapes and special cross sections, is used in the machine building industry, as well as for construction. Rails, for the production of railroad track, are rolled directly from blooms. Plates and sheets are rolled from slabs, and are extremely important in the production of a wide range of manufactured items. Plates are generally considered to be over 1/4", (6mm), in thickness. Plates are used in heavy applications like boilers, bridges, nuclear vessels, large machines, tanks, and ships. Sheet is used for the production of car bodies, buses, train cars, airplane fuselages, refrigerators, washers, dryers, other household appliances, office equipment, containers, and beverage cans, to name a few. It is important to understand the significance of metal rolling in industry today, as well as its integration with other manufacturing processes.

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Figure:129
Metal Forming
Process Hierarchy Of Rolling Operations In Modern Manufacturing Industry







Principles Of Metal Rolling

Most metal rolling operations are similar in that the work material is plastically deformed by compressive forces between two constantly spinning rolls. These forces act to reduce the thickness of the metal and affect its grain structure. The reduction in thickness can be measured by the difference in thickness before and after the reduction, this value is called the draft. In addition to reducing the thickness of the work, the rolls also act to feed the material as they spin in opposite directions to each other. Friction is therefore a necessary part of the rolling operation, but too much friction can be detrimental for a variety of reasons. It is essential that in a metal rolling process the level of friction between the rolls and work material is controlled, lubricants can help with this. A basic flat rolling operation is shown in figure:130, this manufacturing process is being used to reduce the thickness of a work piece.

Figure:130
Basic
Metal Rolling Operation







During a metal rolling operation, the geometric shape of the work is changed but its volume remains essentially the same. The roll zone is the area over which the rolls act on the material, it is here that plastic deformation of the work occurs. An important factor in metal rolling is that due to the conservation of the volume of the material with the reduction in thickness, the metal exiting the roll zone will be moving faster than the metal entering the roll zone. The rolls themselves rotate at a constant speed, hence at some point in the roll zone the surface velocity of the rolls and that of the material are exactly the same. This is termed the no slip point. Before this point the rolls are moving faster than the material, after this point the material is moving faster than the rolls.

Figure:131
No Slip
Point







Sometimes in metal rolling practice, tension, (force), is applied to a work piece as it is being rolled. This tension may be applied to the front, (front tension), the back, (back tension), or both sides.

Kết quả (Anh) 2:

Metal Rolling MACHINES AND EQUIPMENT NEED? HIGH QUALITY - LOW COST SHEET METAL CUTTING MACHINES SHEET METAL PUNCHING MACHINES SHEET METAL MACHINES Bending PLATE ROLLING MACHINES IRON WORKERS INDUCTION Furnaces Presses HYDRAULIC (GENERAL) DEEP DRAWING Presses Presses FORGING (hot / cold) Extrusion Presses ( hot / cold) Furnace INDUCTION SYSTEMS FOR FORGING AND Extrusion CNC Milling MACHINES LATHES CNC Machining CENTERS EDM CNC WIRE CUTTING MACHINES CNC DIE SINKING EDM MACHINES INDUCTION TUBE AND PIPE bending MACHINES (2'-30'DIA) Provide WE CAN MACHINES IN SIZES FROM SMALL TO VERY LARGE: OPTIMIZE YOUR IF YOU WANT TO MANUFACTURING PROCESS WITH THE RIGHT MACHINERY, THEN TALK TO THE EXPERTS. EMAIL: [e-mail] Metal rolling is one of the Most important, modern manufacturing processes in the world. The large Majority of all metal products today are subject to metal Produced at one point trong rolling manufacture. Metal rolling is often Do the first step creating in raw metal printed forms. The ingot or continuous casting is hot rolled bloom or a slab vào, These are the basic structures for the creation of a wide range of manufactured forms. Blooms have a square cross section Typically greater than 6x6 inches of. Slabs are rectangular and are greater than 10 inches Thường print width 1.5 inches and more coal print thickness. Rolling is nhất often Do, (Particularly in the case of the conversion of an ingot or continuous casting), Performed hot. At a rolling mill, blooms and slabs are rolled down to intermediate parts Further như plate, sheet, strip, coil, billets , bars and rods. Many of These products will be the starting material for subsequent manufacturing operations như forging, sheet metal working, wire drawing, extrusion, and machining. Blooms are often Do trực Into rolled I beams, H-beams, channel beams, and T sections for structural applications. Rolled bar, of various shapes and special cross sections, is used in the machine building industry, as well as for construction. Rails, for the production of railroad tracks, are rolled from blooms trực. Plates and sheets are rolled from slabs, and are extremely important, in the production of a wide range of manufactured items. Plates are Generally Considered to be over 1/4 "(6mm), print thickness. Plates are used to print heavy applications like Boilers, bridges, nuclear VESSELS, large machines, tanks, and ships. Sheet is used for the production of car bodies , buses, train cars, airplane fuselages, Refrigerators, washers, dryers, other household appliances, office equipment, containers, and beverage cans, to name a FEW. It is important, to hiểu-significance of metal rolling the printing industry today, as well as its integration with other manufacturing processes. PRIVACY POLICY CONTACT US Figure: 129 Metal Forming Hierarchy Process Of Rolling Operations In Modern Manufacturing Industry Principles Of Metal Rolling Most metal rolling operations are similar printed material is rằng work plastically deformed by compressive Forces the between two Constantly spinning rolls. These Forces act to Reduce the thickness of the metal and its hưởng grain structure. The reduction can be measured by thickness printing the print thickness difference is before and after the reduction, this value is gọi the draft. In addition to Reducing the thickness of the work, the rolls to feed the material am also act as chúng spin directions opposite to each other printing. Friction is therefore a part of the rolling operation cần, but too much can be detrimental friction for a variety of Reasons. It is essential in a metal rolling process mà the level of friction giữa rolls and work material is controlled, Lubricants can help with this. A basic operation is Shown printed flat rolling figure: 130, this manufacturing process is being used to Reduce the thickness of a work piece. Figure: 130 Basic Metal Rolling Operation During a metal rolling operation, the geometric shape of the work is changed but its Volume Remains essentially the same. The zone is the area roll over đó rolls act on the material, it is here mà plastic deformation of the work Occurs. An important, factor is rolling metal print Due to the conservation mà of the volume of the material with the print thickness reduction, the metal exiting the zone roll Will Be Faster Than The metal moving roll entering the zone. The rolls rotate at a constant speed Themselves, at some point Hence in the roll surface velocity of the zone the rolls of the material are và Exactly the same. This is termed the no slip point. Before this point the rolls are moving Faster Than The material, after this point the material is coal Faster moving the rolls. Figure: 131 No Slip Point Sometimes print metal rolling practice, tension, (force), to a work piece is áp as it is being rolled. This tension to the front lẽ áp, (front tension), the back, (back tension), or Both Sides.