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Drop forging is a metalworking process that transforms metal into high-quality components by hammering the heated metal into shape. This process produces parts with strength, durability, and precision that surpasses other metal forming processes. As such, drop forging is widely utilized across several industries to create strong, reliable components for applications where precision and strength are essential.

Benefits: Several advantages of using drop forging for high-quality components include enhanced reliability, durability and strength; improved overall accuracy; closer tolerances; shorter lead times; reduced material waste with less scrap than most alternative methods; increased load capabilities; elimination of need for secondary operations or multiple handling steps; and cost savings in tooling costs compared to alternative processes. Additionally, there is minimal surface integrity disruption during the process which reduces noise production and has virtually no negative impact on heat treatment during some stages of the manufacturing cycle.

Applications: Drop forging is used across various industries including aerospace, military/defense manufacturing, automotive, oil & gas production, agriculture & forestry equipment, construction tools, machine tools parts and more. final pieces produced through this process are highly durable and have a longer lifespan than many alternative components made through a variety of different processes due to its superior strength.

The Different Types of Drop Forging Machines

Drop forging is a process that involves the use of a hammer and anvil to shape and form metal components. Because it offers greater accuracy, repeatability, and efficiency than other traditional forming methods, many manufacturers turn to drop forging for their high-quality parts and components. Drop forging machines vary in size and type, including mechanical presses (which can range from 500 tons up to 10,000 tons), screw presses (which are very effective on low-alloy steels but can’t produce complex geometries), hammer forging machines (for industrial production of large parts such as crankshafts), power hammers (which apply high force at low speeds for precise cutting geometry), and hydraulic presses (which are particularly well-suited for forming complex shapes). Each type of drop forging machine is used for specific applications based on the material being processed, the desired part geometry, part tolerance requirements, cost considerations, etc. With so many different types of drop forging machines to choose from, companies can find the right equipment to meet their quality standards while staying within budget.

Detailed Steps of the Drop Forging Process

  1. Pre-forging – The steel materials used in drop forging are cut to size and preheated before they enter the forge. This preheating helps soften the material and make it easier to work with.
  2. Heating – Forging begins by heating the material so that it becomes soft enough for shaping. Drop forgings may be heated either by heating them in a furnace or immersing them into a bath of molten material such as lead or zinc, depending on the type of shape being forged.
  3. Shaping – Once the metal is hot enough, it can be placed onto a die set and hammered into shape using a press or hammer assisted by machines or humans for increased accuracy and control. During the forging process, stress relief measures are typically applied to relieve built-up stresses from hammering and shaping operations.
  4. Cooling – After shaping is complete, the forging must cool completely under controlled conditions before it can be analyzed for accuracy and defects. Depending on the application, this cooling cycle may include slow cooling—allowing several hours or days to reach room temperature—or rapid cooling where high volume streams of air cools materials quickly but uniformly inside of minutes or even seconds.

5 Inspection – Once cooled, drop forgings undergo an inspection process to check for structural flaws like cracks, porosity, metallurgical defects etc., as well as dimensional accuracy and surface finish specifications that vary depending on customer requirements. If issues are detected during inspection then visual inspections like x-rays, magnafluxing tests etc., may be performed in order to verify any defect prior to further processing steps such as heat treatment or finishing operations

6 Finishing – Finishing operations vary based on part requirements but usually involve machining processes such as drilling, grinding, turning etc., sandblasting threads cutting etc., coating with epoxy powder followed by curing along with other activities designed to improve appearance based on need – Again all these depend highly upon customer requirement!

Highlight Specialty Drop Forging Processes

Drop forging is a specialized metalworking process that is used to create a wide range of high-quality components. It involves the use of specialized dies, hammers, and presses to shape metals into specific shapes. Compared to other manufacturing processes, drop forging offers higher production volumes and lower production costs than traditional methods. Additionally, drop forged components are often much stronger than those created with alternate processes due to their superior strength and fatigue endurance.

There are several types of drop forging processes that can be employed depending on the shape required for the finished product. Hammer forging produces parts contoured along two or more planes, while impression die forging works from an initial cutout in either round or rectangular block using a die with cavities matching the desired shape; only two pieces can be produced at once with this method. In roll forging, rollers deform a pre-cut bar into finished components; it yields finer grain structures & better strength properties when compared to other forge processes. Upset forging increases the cross sectional size of parts by axially compressing them; it’s commonly used for reducing considerably the cost of machining operations. Finally, cold heading creates intricate geometric shapes such as grooves or squares at very high speeds while super plastic forming is used to achieve complex 3-D geometries at temperatures below 450°C (862°F); both processes enhance accuracy and repeatability in manufacturing production cycles

Overview of Quality Control for Drop Forged Products

Drop forging is a forming process used to produce high-quality components from raw materials. The process involves a heated workpiece and a heavy die or hammer, which is then dropped on the heated workpiece. Quality control for drop forged products begins with properly selecting the raw materials and metals for the product. Properly selecting the right metal alloy will determine how well the drop forging process produces quality parts. The computer and software that helps drive the automated machine must be optimized to generate reliable and consistent results throughout each batch of production. Lastly, tools and lines should be properly taken care of by having regular maintenance checkups done to ensure that all parts produced are up to customer specifications. These steps in quality control will help ensure that high-quality products are produced consistently while reducing costs associated with producing inferior components.

Safety Precautions for Drop Forging

Drop forging is a method of metalworking that produces high-quality components for a variety of different industries. It works by hammering a heated piece of metal with a drop hammer set at high speeds and great force. While this process can be highly beneficial, there are certain safety precautions that need to be taken in order to prevent accidents and injury:

  1. Always wear protective gear when operating the machinery – including heavy-duty boots with steel toes, face shields, and hearing protection.
  2. Work area should always be free from foreign objects that could potentially shorten the lifespan of the equipment or cause injuries over time.
  3. Be sure to secure all heavy tools and pieces securely against the machine prior to starting operations in order to avoid them slipping out of place while under pressure.
  4. All drop hammers should be regularly serviced in order keep them in top working condition and prevent potential overloads or breaks in material during operation.
  5. Employees should be trained thoroughly in the proper usage of all drops forging machines before beginning work on each project.
  6. When working with electric powered drop forging equipment, circuit breakers should always be kept on hand in case of power outages or surges which could damage the equipment or hurt personnel working near it.

Applications for Drop Forging for High-Quality Components

Drop forging is a specialized type of metal forming process that creates high-quality components. The unique properties of the heated and cold-worked metals allow for precise shaping along with a strong finished product. Drop forging can be used in numerous applications, including those that require components with superior strength, accuracy, and dimensional stability.

Industries using drop forging include automotive, defense, aerospace and medical device manufacturing. In the automotive industry, drop forged parts are commonly used in transmissions and drivetrains, as well as steering systems, suspension components, engine block bases, camshafts, axles and other structural elements. For the defense sector, drop forged parts are constructed for body armor plates, tank treads, weapon frames and mountings. Aerospace is another major consumer of drop forged components where they are used on satellites’ yoke rings or in aircraft landing gear systems like struts or axles. Finally the medical industry utilizes drop forging to manufacture orthopedic implant assets such as hip replacements or stems for artificial joints among many other applications.


Drop forging for high-quality components offers many advantages to manufacturers. The process is less costly than machining complex shapes from raw material, has a higher fatigue strength, improved dimensional accuracy and producibility, more consistent and uniform grain flow, superior surface finish and can be used in larger sizes and multi-shaped components. Additionally, it allows greater design flexibility as the process utilizes tools that achieve part geometry in one working cycle. Using this method of production allows for improved inventory management with fewer stock keeping units, less scrap in production cost, and warranty claims and overall increased efficiency. Drop forging truly is an advantageous method for producing high-quality components.

EXCEL FORGING is a reputed supplier of forging and among the few ISO 9001:2015 registered CNC auto parts India. We manufacture custom parts and spares for various companies as per their requirement. Having 3 decades of experience, we ensure the best quality metals, materials and return on any flawed supplies or orders.

Contact Excel Forging for any type of inquiry.

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