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Plate Rolling Process Steps and Application of Tube Rolling Process

3 roller bending machine

The plate rolling process is a fundamental technique within the realm of metal fabrication, offering the ability to shape thick metal plates into a variety of components with diverse applications. This comprehensive article explores the intricacies of plate rolling, detailing its significance, methodologies, equipment, and the wide array of industries it serves.

Understanding Plate Rolling process

Plate rolling, often referred to as plate bending, is a manufacturing process that transforms flat metal plates into curved or cylindrical forms. This technique is extensively utilized across industries that demand robust and precisely shaped components. Plate rolling offers numerous benefits, including the creation of strong, efficient, and aesthetically pleasing structures.

One of the most common applications of the plate rolling process is in the manufacturing of pipes and tubes. By rolling flat metal plates into cylindrical shapes and then welding or joining the edges, seamless or welded pipes and tubes can be produced. These pipes find use in plumbing, construction, infrastructure, and industrial systems.

The sheet rolling process is a crucial method in the manufacturing of pipes and tubes, playing a pivotal role in shaping raw materials into versatile and durable products.

plate rolling machine 【sheet rolling machine】 sheet bending machine

The Significance of Sheet Rolling

Sheet rolling, a form of metalworking, involves passing metal sheets through rollers to reduce their thickness and transform them into pipes and tubes. This process offers several advantages, such as enhancing material properties, ensuring dimensional accuracy, and facilitating cost-effective production. The resulting pipes and tubes find applications in diverse industries, including construction, automotive, aerospace, and more.

Key Techniques in Sheet Rolling

  • Hot Rolling: Hot rolling involves subjecting metal sheets to high temperatures to increase their malleability, allowing for significant reductions in thickness. This technique ensures uniform grain structure and better mechanical properties in the final product.
  • Cold Rolling: Cold rolling is conducted at room temperature and is ideal for achieving precise tolerances and smooth finishes. It enhances surface hardness and provides improved surface quality for applications requiring aesthetic appeal.
  • Tandem Rolling: Tandem rolling involves multiple sets of rollers arranged in sequence. This technique allows for a gradual reduction in thickness and increased control over the rolling process, ensuring consistent quality across the length of the sheet.
  • Pilgering: Pilgering, or cold-rolling by compression, is used for producing seamless tubes. The process involves reducing the diameter and thickness of tubes simultaneously using a pair of tapered dies, resulting in excellent surface finish and dimensional accuracy.

Top 5 Applications Across Industries of plate rolling process

  1. Construction: Rolled pipes and tubes are essential for structural frameworks, providing strength and support in buildings and bridges.
  2. Automotive: Pipes and tubes play a crucial role in exhaust systems, chassis components, and frame structures, contributing to the overall performance and safety of vehicles.
  3. Oil and Gas: Seamless pipes produced through the rolling process are integral for transporting oil and gas over long distances due to their high strength and resistance to corrosion.
  4. Aerospace: Precision-engineered tubes are used in aircraft components, such as hydraulic systems and landing gear, where reliability and weight reduction are critical.
  5. Manufacturing: Rolled tubes serve as raw materials for various manufacturing processes, including machining, forming, and welding, to create intricate components.

plate Rolling machine rolling process of pipe

  • Preparation: Raw material, often in the form of metal sheets, is inspected for quality and cleanliness before the rolling process begins.
  • Heating (Hot Rolling): In hot rolling, sheets are heated to high temperatures to reduce their deformation resistance and allow for easy shaping.
  • Passes through Rollers: The sheets are fed through sets of rollers that gradually decrease the material’s thickness while maintaining its width.
  • Cooling and Annealing: After rolling, the metal is cooled and, if necessary, annealed to relieve stress and enhance material properties.
  • Finishing (Cold Rolling): Cold rolling involves further reduction in thickness to achieve the desired dimensions and surface finish.
  • Cutting and Shaping: Rolled sheets are cut into appropriate lengths and may undergo secondary shaping processes, such as bending or welding.
  • Quality Control: The finished pipes and tubes undergo rigorous quality checks, including dimensional accuracy, surface quality, and mechanical properties.

Considerations of plate rolling process

Advantages of the sheet rolling process include improved material properties, efficient material usage, and reduced lead times. However, it’s essential to consider factors like material selection, roller design, and process parameters to ensure consistent quality and avoid defects like wrinkling, edge cracking, or surface imperfections.


The plate rolling process stands as a cornerstone in modern manufacturing, enabling the creation of pipes and tubes that underpin countless industries. From its varied techniques to its vital applications, this process exemplifies the marriage of engineering precision and material science innovation. As technology continues to advance, the sheet rolling process will undoubtedly evolve, further shaping the way we build our world.