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What you should know about Heavy Forgings?

Views:182     Author:Ronsco     Publish Time: 2020-01-10      Origin:Ronsco Industry News

What is Forgings?

Forging is a manufacturing process involving the shaping of metal using localized compressive forces. The blows are delivered with a hammer (often a power hammer) or a die. Forging is often classified according to the temperature at which it is performed: cold forging (a type of cold working), warm forging, or hot forging (a type of hot working). For the latter two, the metal is heated, usually in a forge. 

Forging Products dived into two group with according to the purpose of heat treatment.

Forgings Types:

Due to Metal forging can be eliminated by forging. Holes to improve the mechanical properties of forgings. Forgings Parts is used wide range.

The difference in the complexity of the geometry structure of the forgings determines the obvious difference between the die forging process and the die design. It is necessary to define the type of the forging structure. In the industry, general forgings are divided into 3 categories, and each category is further subdivided into 3 groups for a total of 9 groups.

Type I—Forgings with the main axis standing in the cavity of the mold and having two-dimensional dimensions close to each other in the horizontal direction (round / revolving bodies are mostly, square or similar shapes). This type of forging is usually used in upsetting process when die forging. Divided into three groups according to the difference in forming difficulty.

Heavy Forgings products-markets

Group Ⅰ: Forgings formed by upsetting and slightly pressing, such as gears with little change in height between the hub and the rim.

Group 1-2: Forgings that are formed by extrusion and slightly upsetting, and both extrusion, pressing in and upsetting, such as universal joint forks, cross shafts, etc.

Group I-3: Forgings formed by compound extrusion, such as hub axles.

Type Ⅱ—Straight and long shaft forgings with the main axis lying horizontally in the die cavity and a long one-dimensional dimension in the horizontal direction. It is subdivided into 3 groups based on the difference in the cross-sectional area of the vertical main axis.

Section Ⅱ-1 has no significant difference in the cross-sectional area of the vertical main axis (the ratio of the maximum cross-sectional area to the minimum cross-sectional area is less than 1.6, which can be made without other equipment).

Forgings, such as connecting rods, where the cross-sectional area of the vertical main axis of group Ⅱ-2 has a large difference (the ratio of the maximum cross-sectional area to the minimum cross-sectional area is greater than 1.6, and other equipment needs to be made in front).

Forgings whose ends (one or both ends) of group Ⅱ-3 are fork-shaped / branch-shaped, in addition to determining whether billing is required according to the above two groups, pre-forging steps must be reasonably designed, such as casing forks.

Types I and II forgings are generally flat die or symmetrical curved die, and asymmetric curved die increases the complexity of the forging.

Type III—Forgings with twisted main axis and lying on the mold cavity. It is subdivided into 3 groups according to the main axis direction.

The axis of group Ⅲ-1 is bent in the vertical plane (the parting surface is a gently undulating surface or with a drop), but the plan view is a straight long axis (similar to type II), and generally no special bending step is required. Formed forgings.

For group III-2, the axis of the main body is bent in the horizontal plane (the parting plane is generally flat). Forgings that can be formed by bending steps must be arranged.

The main axis of group Ⅲ-3 is a forging with space bending (asymmetric curved surface parting).

There are also more complex forgings that have two or three types of structural features, such as most automotive steering knuckle forgings

Chinas forging Industry News 2

China's forging Industry:

The giant die forging hydraulic press is a national treasure-level strategic equipment symbolizing the strength of heavy industry, and there are only a handful of countries in the world that can develop it. At present, the only countries in the world with die forging presses of 40,000 tons or more are China, the United States, Russia and France. Among them, the United States built two of the world's largest 45,000-ton die forging hydraulic presses around 1955, which have been used until now. In 2001, the Shultz Steel Plant in California built another 40,000-ton die forging press. The Soviet Union built two 75,000-ton-sized giant forging hydraulic presses around 1961. France purchased a 65,000-ton die forging hydraulic press from the Soviet Union in 1976, and developed a 40,000-ton die forging press in cooperation with Germany in 2005. China stagnated for nearly 40 years after the first 30,000-ton die forging press was built in 1973. Until the last two years, several giant presses have been developed explosively. In 2012 alone, there were one 30,000 tons (Kunlun Heavy Industry), 40,000 tons (Delta Air), and 80,000 tons (Deyang Double) die forging presses. Among them, the 80,000-ton-class press broke the 51-year world record of the former Soviet Union in one fell swoop.

Chinas forging Industry

Chinas forging Industry news 3


Heaving Forging Industry Applications:

Due to Metal forging can be eliminated by forging. Holes to improve the mechanical properties of forgings. Forgings Parts is used wide range.

1.Along with the rapid development of modern industry, such as energy, transportation and metallurgy, many heavy forgings with high quality are required.

2.Forgings for hydrogenerator, such as Industrial Mill SM Spindle.

3.Forgings for thermal power stations, such as rotors, impellers, guard ring spindles, etc.

4. Metallurgical machinery, such as cold rolls, hot rolls and herringbone gear shafts, etc.

5.Forgings for pressure vessels, such as cylinders, cauldron flanges and seals.

6.Marine forgings, such as crankshaft, stern shaft, rudder, thrust shaft and intermediate shaft.

7.Forgings mechanical equipment, such as hammer head, hammer rod, hydraulic press of the vessel, cylinder, shaft of the cylinder and cylinder block, etc

8. automotive forgings, such as axle, wheel, plate spring, locomotive crankshaft, etc., according to statistics, forging in the automotive accounted for 60%.

9. Forgings for military use, such as gun barrels, door bodies, bolt supports and traction rings, account for 65% of the mass of tanks, according to statistics.

A major forgings manufacturer in China:

Valve manufactureValve body, large stem, ball valve

China Forging Enterprise:

Medium and large forging enterprises of various types and industries (mainly in the petrochemical industry.

Hydropower and thermal power manufacturing enterprises

Shanghai electric, east electric, Harbin electric group

Blower enterpriseShenyang blower group shares, shaanxi blower group shares

Hunan anlian metal products co., LTD. Forgings:


Hunan Anlian Metal Products Co., Ltd. was established in May 2009. The production and processing base is located in Dainan Industrial Park, Xinghua City, Jiangsu Province. The production workshop covers an area of more than 25,000 square meters. There are more than 100 employees and two technicians More than ten people.

After more than ten years of development, we have 20 tons of complete electric arc furnace, AOD refining, LF refining, VD vacuum, 1.5 ton and 3 ton VIM semi-continuous vacuum furnace smelting equipment, 1.5 ton and 5 ton electroslag remelting and gas protection Slag equipment, 5 ton, 1,600 ton hydraulic presses, 7.5-meter, 9-meter box annealing furnaces and lathes, milling machines, CNC machine tools, cylindrical grinders, surface grinders, wire cutting and other production and processing equipment; direct reading spectrometers, hardness stretching, impact Testing machines, ultrasonic non-destructive flaw detectors, metallographic microscopes, and other complete testing equipment. The company focuses on special stainless steel, nickel-based alloys, precision alloys, corrosion-resistant alloy shafts, square steel, modules, round rods, round cakes, rings And research and development of forgings, sleeves and other forgings.

Ronsco Frogings products are widely used in water pump valves, automotive ships, mechanical molds, aerospace and military industries, offshore equipment, petroleum and petrochemicals, light rail high-speed rail, gas turbines, turbines and other fields.

The nickel alloy and special stainless steel forgings produced by the company can meet different inclusions, residual ferrite / austenite, grain size, impact work and flaw detection and other high-level requirements.The products are eventually applied to GE Energy, Siemens, Al Leading companies in the industry, such as Stone and CIMC, have been well received by users.

hunan Anlinz Metal products Application

Hunan anlian's Advantages:

1. Raw materials: refining (vacuum + electroslag).

2. The product has uniform chemical composition, high purity, low gas content and no defects on the surface.

3. Quality assurance: incoming inspection, process control (feeding control, self-inspection, patrol inspection, finished product inspection).

4. Used by American GE (660), French Alstom (625), CIMC Group (1.4418, 17-4PH), etc. 5. Delivery capacity: stable production and fast delivery cycle.

6. There is no requirement for MOQ.

7, low price: large-scale production reduces costs, more than 15% lower than the same quality products in Europe and America.

If you want to learn more about Forgings Parts:

TELEPHONE:+86- 0731-83874606

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