| Customization: | Available |
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| Processing Object: | Metal |
| Molding Style: | Forging |
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Botou Casting Machinery Factory, originally known as Cangzhou Metallic Crafts Co., Ltd, stands proudly in the historical casting & forging town of Botou in Hebei province, China, just 200km from the bustling city of Beijing. With over three decades of rich experience in the custom forging industry, our factory is a fusion of time-honored craftsmanship and cutting-edge innovation. As a traditional forging manufacturer, we prioritize learning from the best practices worldwide while continuously embracing new techniques and advanced machinery. Our relentless pursuit of excellence is driven by our commitment to evolve and improve, ensuring we consistently meet and exceed the ever-changing demands of the market.
Forging, one of the oldest and most venerable techniques in metalworking, continues to stand the test of time as a remarkably effective method for shaping metal. At its essence, forging involves molding raw metal without allowing it to fully melt, keeping it solid while a skilled operator employs diverse forming techniques such as hammering, rolling, or pressing. Despite the myriad variations of forging-each offering unique advantages-the core principle generally involves heating the metal to very high temperatures to facilitate intricate shaping processes.
In comparison to casting and other metalworking techniques, forging delivers exceptional physical properties, most notably a remarkable degree of tensile strength. These advantageous attributes stem from modifications in the metal's grain structure, achieved by never melting the material. Instead, the applied percussive or compressive forces during forging cause the grain to align with the flow of the finished product. As a result, the components produced are markedly stronger than those created through machining or casting.
CMC Forge brings these extraordinary forging benefits to clients spanning various industries, offering an extensive array of expert forging services that satisfy the diverse requirements of countless applications.
THE FORGING PROCESS
The forging process encompasses numerous subtypes, so the specific steps for forming a product may differ. Nonetheless, most procedures follow a similar fundamental sequence.
In the realm of forging, two primary processes stand out: hot forging and cold forging. While both techniques are esteemed for transforming metal into desired shapes, they achieve these results through distinct methods.
Hot forging involves heating metal to a temperature beyond its recrystallization point, sometimes reaching a blistering 2,300 degrees Fahrenheit. This process significantly reduces the energy needed to shape the metal effectively. The intense heat diminishes yield strength while enhancing ductility, ensuring a smoother shaping experience. Additionally, hot forging eradicates chemical inconsistencies, resulting in superior product integrity.
Cold forging, on the other hand, is performed at room temperature or any level below the recrystallization threshold. While metals like high-carbon steel often resist cold forging due to their inherent strength, this method excels in achieving precise dimensional control, consistent product uniformity, and pristine surface finishes with minimal contamination. The cold forging spectrum includes techniques such as bending, extruding, cold drawing, and cold heading. However, these advantages require robust machinery and may necessitate intermediate annealing steps, increasing the complexity and cost.
ADVANTAGES OF FORGING
Our company excels in providing top-tier hot forging parts and components that serve a multitude of industries. Whether it's automotive, food dairy, machinery, medical, plumbing, watering, mining, petrochemical, electrical, energy, aerospace, submarine, or others, we deliver unmatched quality and precision.
Hot forging is distinguished for producing some of the most robust manufactured parts and components, surpassing other metal manufacturing techniques. Our expertise spans crafting hot forging parts ranging from a few grams to hefty hundreds of kilograms. For those requiring exceptional surface finish, we offer an extensive array of secondary operations including advanced machining and exquisite surface finishing.
Hot forging involves heating the metal beyond its recrystallization temperature. This process significantly reduces the flow stress and energy required to shape the metal, thereby accelerating production rates. By softening the metal, hot forging facilitates easier shaping and minimizes the risk of fracturing.
Iron and its alloys are predominantly hot forged for two critical reasons: Firstly, as work hardening occurs, materials like steel and iron become increasingly challenging to manipulate. Secondly, hot forging metals such as steel is more cost-effective, especially when followed by heat treatments, since these metals can be further enhanced through additional processes beyond cold working.
Typical hot forging temperatures are: Aluminum (Al) Alloys - 360° (680°F) to 520°C (968°F); Copper (Cu) Alloys - 700°C (1,292°F) to 800°C (1,472°F); Steel can reach up to 1,150°C (2,102°F).
In hot forging, metals are deformed above their recrystallization temperature, using high heat to prevent strain hardening. The process involves heating the metal beyond its recrystallization point and molding it in a heated form. This allows for more complex shapes, as the hot metal is pliable and easy to manipulate, unlike cold forging.
For superalloys with limited malleability, isothermal forging is employed to prevent oxidation. This method, synonymous with hot forging, maintains the workpiece at high temperatures within a controlled atmosphere throughout the forming process.
To uphold this temperature, the mold is heated to an elevated or slightly reduced temperature compared to the workpiece. As the mold applies force, it shapes the workpiece without the cooling effects typical at the mold interfaces, thereby enhancing the metal's flow characteristics.
| Material | Characteristics | Application |
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| Stainless Steel | Corrosion-resistant |
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| Low Carbon and Low Alloy Steel | Easily processed Good mechanical properties Low material cost |
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| HSLA/Microalloy Steel | Good mechanical properties Low material cost Simple thermomechanical treatment |
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| Aluminum | Good strength-to-weight ratio Readily forged |
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| Aluminum A356.0 | Good strength-to-weight ratio Readily forged |
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| Nickel-Base Superalloy | Oxidation resistance Creep-rupture strength |
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| Titanium | High strength Low density Excellent corrosion resistance |
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