hideghajlítással

Hideghajlítással, also known as cold bending, is a metalworking process where metal is shaped at room temperature without any heating. This method is employed for various applications, particularly with materials like steel, aluminum, and copper alloys. The primary advantage of cold bending is that it preserves the material's inherent strength and hardness, as the microstructure of the metal is not significantly altered by heat.

The process typically involves using specialized machinery such as press brakes, rolling machines, or rotary draw benders. These tools apply controlled force to the metal workpiece, causing it to deform plastically to the desired shape. Common cold-bent components include pipes, structural beams, and decorative elements. While effective for thinner materials and moderate bends, thicker sections or severe bends may require more force or specialized techniques to avoid fracturing or excessive springback.

Cold bending offers benefits like improved surface finish and tighter tolerances compared to hot bending. However, it can also induce residual stresses within the material, which may need to be addressed through subsequent annealing processes if a specific mechanical property is required. The selection of cold bending over hot bending depends on the material properties, the complexity of the desired shape, and the required final characteristics of the product.