What is cold tube forming and why is it key in industrial manufacturing?
The cold tube forming is a mechanical process that allows the geometry of a tube to be modified without applying external heat. Thanks to this technique, industries in sectors such as automotive, machinery, metal furniture or renewable energies can obtain high precision parts with an excellent surface finish. At CORVATS ESPECIALS SL (COES), in Terrassa (Barcelona), we combine experience and advanced technology to guarantee consistent results.
Advantages of cold forming
- Greater dimensional stability.
- Clean finishes without undesired deformations.
- Repeatability.
- Increased mechanical strength of the material.
Cold tube forming techniques used in industry
Cold forming incorporates different technologies depending on the diameter, thickness and complexity of the part. At COES we work with versatile solutions that allow us to adapt to the demanding needs of our national and international customers.
1. Embedding and expansion
Processes used to modify the diameter or generate specific housings and joints. Cold expansion avoids cracks and maintains the structural continuity of the pipe.
2. Flattening and punching
Essential for applications in furniture, light structures or mechanical components. It allows to generate flat surfaces, holes and repetitive geometries with tight tolerances.
3. Bending prior to forming
Many projects require combining tube bending and cold forming on the same part. The coordination of both processes ensures continuity and precision in radii, profiles and functional areas.
Materials most commonly used in tube forming
The technique allows a wide variety of industrial materials to be processed while maintaining structural integrity even in complex processes.
Carbon steel
Ideal for machinery, structures and automotive due to its strength and ductility.
Stainless steel
Recommended for applications where corrosion and hygiene are critical, such as food or technical equipment.
Aluminum
It provides lightness and conductivity, perfect for lighting, transportation and design components.
Cold tube forming applications in Terrassa (Barcelona) and at international level.
COES collaborates with engineering companies, manufacturers and distributors who need customized solutions in high value-added projects. Thanks to our in-house capabilities, we produce small, medium and large series while maintaining precision and repeatability.
- Structural components and lightweight chassis.
- Conduction systems and metallic furniture.
- Industrial equipment and customized machinery.
- Parts for renewable energies and energy efficiency.
In addition, our international approach allows us to serve projects in different countries, maintaining tight deadlines and consistent quality.
Complementary services for a complete finish
Cold forming is often combined with other key processes in the metallurgical sector. At COES we offer a global service:
Tube bending
We perform high precision bending in different diameters. More information in our service of tube bending.
Customized forming
Solutions adapted to each industrial project. Find out more at tube forming.
Specialized welding
High resistance joints according to customer's needs. Consult our service of welding.
FAQs on cold tube forming
What is the difference between hot and cold tube forming?
Cold forming is performed without heat input, which maintains better dimensional control and improves the strength of the material. Hot forming allows working with greater thicknesses, but can generate oxidation or thermal deformation. In industrial projects where precision is key, cold forming is usually the most efficient option.
What tolerances can be achieved?
They depend on material, thickness and geometry, but generally close tolerances are achieved to meet the requirements of industries such as automotive or machinery. The use of custom tooling allows consistency and repeatability to be maintained even in long series.
Is it possible to combine forming and bending in the same part?
Yes, at COES we carry out projects where bending and forming are integrated in the same process, ensuring geometric continuity, uniform radii and precise functional zones. This combination is especially useful for structures or design components.
Do you need a cold tube forming solution?
At CORVATS ESPECIALS SL (COES) we advise you from the design phase to the final manufacturing, always with a focus on technical precision, quality and reliable deadlines.
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