METAL FORGING AND ROLLING
Forged Bar
Blanks
Complex Shapes
Disc
Rings
Hollows
Hubs & Tooled Forgings
Shafts
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Defining Forging
Forging is a manufacturing process involving the shaping of metal using localized compressive forces. These forces are delivered with a power hammer or press. No other process for working metal can equal forging results in strength and toughness.
At its most basic level, forging is the process of forming and shaping metals through the use of hammering, pressing or rolling. The process begins with starting stock, usually a cast ingot (or a “cogged” billet which has already been forged from a cast ingot), which is heated to its plastic deformation temperature, then upset or “kneaded” between dies to the desired shape and size.
During this hot forging process, the cast, coarse grain structure is broken up and replaced by finer grains. Shrinkage and gas porosity inherent in the cast metal are consolidated through the reduction of the ingot, achieving sound centers and structural integrity. Mechanical properties are therefore improved through reduction of cast structure, voids and segregation. Forging also provides means for aligning the grain flow to best obtain desired directional strengths. Secondary processing, such as heat treating, can also be used to further refine the part.
Forging can create a myriad of sizes and shapes with enhanced properties when compared to castings or assemblies.
Ring Forging Process
- Ingot or billet is cut to size then upset to achieve mechanical properties
- Center is punched to create ring rolling "Donut"
- Donut ready for ring rolling
- proces begins with ID & OD pressure applied to "Donut"
- Ring diameters increase as pressure applied to ID & OD increases. Axial rolls control ring height.
- When desired size is achieved, process is complete
We regularly carry out the following forging operations:
- Press forging
- Hammer forging
- GFM forging
- Closed die forging
- Ring rolling
- Bar rolling
We have the ability to convert ingot, billet or bar stock to finished and semi finished products in various shapes and sizes. All in accordance with individual customer requirements.
Shaped components can be forged through the closed die process. We can arrange for dies and tooling to be manufactured in accordance with customer requirements.
Forged Products
We offer many size forgings in both standard and unique geometries to meet your needs.
- Complex Shapes
- Bars
- Step Shafts, Eccentric Shafts & Rotor Shafts
- Hollows
- Hubs & Tooled Forgings
- Forged & Rolled Rings
- Semi-Closed Die
- Discs & Blanks
Metal Cutting
Cold forging (or cold forming) is a process that takes cold heading quality wire on heading machines which is cut to required lengths. The “cut off” is transferred through a series of dies (the more complex the part, the greater the number of dies), which produces a “headed blank”. This part of the process determines the size and length and the head configuration i.e. countersunk, cap, pan etc. The recess is also formed at this stage i.e. socket, 6-lobe, pozi etc.
Material Availability
These include:
- Stainless Steel
- Duplex Steel
- Super Duplex Steel
- Titanium
- Tantalum
- Nickel Alloy
- Hastelloy
- Inconel
- Monel
- Nitronic
- Invar
- Copper Nickel
Difference between casting and forging
Casting involves pouring molten metal into molds to create complex shapes but may result in weaker structures. On the other hand, forging shapes heated metal under force, leading to stronger, more durable products.
What is the forging process?
Forging is a process where metal is heated and then hammered, pressed, or rolled into a desired shape. This improves the strength and durability of metal parts.
What is forging material?
Forging material refers to the metals that are heated and manipulated to form a desired shape. Common materials include steel, hastelloy, monel, and titanium.
What is the forging temperature?
The optimal forging temperature typically ranges between 950°C and 1250°C. This is the temperature at which a metal can be effectively shaped by hammering or pressing.
Hot Forging VS. Cold Forging?
Hot forging shapes metal at high temperatures, improving malleability and preventing strain hardening. Cold forging shapes metal at room temperature, resulting in stronger products with a good surface finish, but it’s limited to simpler shapes.
What is the cold forging process?
Cold forging is a metalworking technique that involves deforming a metal blank at room temperature using high-pressure force.
What is the hot forging process?
Hot forging involves shaping and transforming heated metal billets using a specialized machine. As the metal cools, it becomes stronger and more durable.
What is the drop-forging process?
Drop forging is a metalworking process where a heated metal billet is shaped using a mechanical or hydraulic press.
What are the different types of forging methods?
Forging methods include open-die forging, closed-die forging, seamless rolled ring forging, upset forging, press forging, drop forging, cold forging, and hot forging. Each method caters to specific applications.
What is machine forging?
Machine forging is a manufacturing process in which a forging machine is used to shape metal into desired dimensions and forms, often under high temperatures and pressure.
What are the types of forging machines?
Types of forging machines include mechanical, hydraulic, and servo presses. Other types include hot forging machines and CNC forging hammers. Each type is used for specific metal-forming processes.