taivutustaulukkoista

Taivutustaulukkoista, often translated as bending tables or bending charts, are a crucial tool in sheet metal fabrication. They provide a standardized reference for determining the amount of force, die opening, and punch radius required to bend a specific type of sheet metal to a desired angle. These tables are essential for ensuring accuracy and consistency in bending operations, minimizing material waste, and optimizing the bending process.

The core principle behind taivutustaulukkoista is the concept of springback. When sheet metal is bent, it tends to spring back slightly after the bending force is removed. Taivutustaulukkoista account for this springback by providing data that helps the fabricator overbend the material slightly to achieve the final desired angle. Factors influencing springback include the material's type, thickness, temper, and the tooling used.

These tables typically present data in a tabular format, with columns for material properties (e.g., steel, aluminum, stainless steel, and their respective grades), material thickness, punch nose radius, die opening, bend angle, and the calculated bend allowance. Bend allowance is the amount of material that must be added to the flat pattern to compensate for the material that is stretched and compressed during the bending process.

Using taivutustaulukkoista requires understanding the specific material being worked with and the dimensions of the desired part. Fabricators select the appropriate row in the table that matches their material and thickness, then use the provided values to set up their press brake or bending machine. Accurate use of these charts significantly reduces trial and error, leading to more efficient production and higher quality finished products.