innovative technologies for smart profiles

Company Montanstahl is an international metallurgical Group headquartered in Switzerland that is specialized in the manufacturing and distribution of high quality special profiles in steel and stainless steel. Built on solid principles and innovative by mission, Montanstahl looks at the future with the confidence and determination. Montanstahl meets the growing demand for customized products with the ability to supply near net shape solutions with an unmatching quality, a customer-centric service approach, and short time to market. Our goal is to strengthen our position as a global supplier of...

Hot Rolling Hot rolled special profiles are produced by forming wire rod, which can have a diameter of max. 60 mm, by a continuous rolling process at a temperature of about 1100°C. Hot rolling is by far the most popular and well-known technology to produce steel profiles. Depending from the shape complexity, the quantity, the mechanical properties and surface condition, hot rolling is considered a particularly cost effective manufacturing process for steel profiles. Compared to conventional billet-based rolling mills, we operate special rolling mills, which start predominantly from wire rods....

The technology known as hot extrusion can be used to produce profiled bars with complex geometries in small or large volumes and in difficult-to-form materials. During hot extrusion a round steel billet is pre-heated and, after leaving the furnace, pushed through a forming die into a shaped bar using a ram with an extrusion force of approx. 2000 tons. Hot extrusion not only allows to manufacture complex open steel profiles but as well seamless hollow profiles. Extruded profiles often become the preferred solution when the design is very complex, e.g. necessity for under cuts and/or when small...

Laser Welding Laser welding is a very flexible, efficient and reliable technology for welding profiles in steel. The profiles are built up with components, predominantly laser-cut flat strips, but as well other solid profiles like rounds, squares or hollow profiles like tubes. The welds are made with powerful lasers without the use of filler material, producing very small weld seams. Virtually any commercially available mild steel and stainless steel can be processed achieving monolithic welds up to a depth of 25 mm. Laser welded sections generally feature small internal and external radii and...

3D Laser and Laser Hybrid Welding This state of the art machinery unifies all advantages of laser welding with the flexibility of a 5-axis robot, allowing the production of extremely complex, non-linear or curved profiles, fabricated components and composite profiles. Subject to the properties of the requested product, the system operates selectively in a laser-alone or laser-hybrid mode. In the 3D laser-hybrid welding mode an arc welding (MIG/MAG) device is added to the laser torch, improving the characteristics of a conventionally arc welded product. Advantages are a reduced distortion of the...

Over the years we have refined our laser welding technology and developed specific lines, which operate splatter free and with very low heat induction. These laser welding lines opened up new possibilities in manufacturing filigreed light-weight profiles. Welding always brings heat and consequently leads to severe distortion of the profiles. The smaller and more complex the steel profiles, the more difficult the subsequent straightening process of the welded bars becomes. Low impact laser welding closes an important product gap, which could not be covered by extrusions or hot rolling. Especially...

Cold Drawing Cold drawing is a precision forming process that reduces the section area of a round, flat, square steel bar or that of a pre-shaped profile, into a secondary or final shape by pulling it through precision dies. This operation gives the final product a high geometrical precision. We offer special shapes as per customer drawings as well as standard steel sections like flats, half rounds and key steel. We cover all types of steel, from common non-alloyed carbon steel, tool, free cutting, spring up to martensitic, ferritic, austenitic stainless steel and nickel alloys. Cold drawing...

Cold rolled profiles are produced by forming round wire rod, which can have a diameter of max 30 mm, by a continuous rolling process without heating up the material. Cold rolling is a very efficient manufacturing process, which has been developed mainly for small sections. Compared to hot rolling, cold rolling offers some considerable advantages: excellent surface finish, tight tolerances (h9) and the possibility to produce very small production lots are the most obvious. Furthermore, cold rolling gives the possibility to change the mechanical properties of the material and produces certain useful...

Mechanical Crimping Mechanical crimping allows combining dissimilar materials with the purpose to achieve a thermal, acoustic, magnetic or electrical decoupling. We preferably use special glass fiber reinforced polyamides (GRP) as web material and solid metals like common mild steel and stainless steel for the flanges. Special alloys like bronze, copper and brass can be used as well for the flanges. The process requires a precision U-shaped adapter, which can be made from steel or stainless steel and is laser welded on the flanges. The fixing of the polyamide web is achieved by a continuous mechanical...

MONTANSTAHL AG Via Gerrette 4 CH-6855 Stabio Switzerland Fon +41 (0)91 641 68 00 www.montanstahl.com