Metric Sheet Metal Bend Radius Chart

Metal sheet bending table calculating bend allowance bending basics the fundamentals of k factor in sheet metal bending how to calculate press brake tonnage.

Metric sheet metal bend radius chart.

Sheet metal bend radius chart metric. Minimum versus remended inside bend radius. Many software packages like solid works inventor and solid edge will let you incorporate a bend deduction chart into its calculations when developing flat patterns. The following illustration shows the equation calculation for determining the bend allowance when forming sheet metal.

The tables below show bend radii and minimum bend sizes for materials and tooling combinations stocked by protocase. Use this document to choose values that are both manufacturable and meet your needs. It is most economical to use a single bend radius throughout the design but if necessary you can utilize multiple radii. The second important number when creating sheet metal designs is the bend radius value.

Open sheet metal bend allowance calculator sheet metal bend allowance equations. Written by kupis on july 3 2020 in chart. Discover all our calculation tools in the calculators section of the top menu. The tool can calculate the required bending force for bending aluminum stainless steel mild steel and weldox or strenx high strength steels.

Table 1 preferred recommended 90 degree bend radii for various sheet metals. The material thickness will be measured in decimal form not by the gauge number. Most sheet metal materials will conform to the calculations. Aluminum where necessary 5052 h32 may be bent to 1t and 6061 t6 to 1 1 2t.

The bend radius of a sheet metal design will be based on the wall thickness of the part and the tooling that is available in house. Unfortunately sheet metal bending is not always going to be the same in every shop. This tool allows you to determine tonnage internal radius v die opening and minimum flange you just have to insert the characteristics of the sheet metal to be bent. We go beyond the general rules of sheet metal bending as our customers want tight bend radii for sheet metal parts.

Parker steel company same day shipping largest inventory of metric metals in north america. It is possible to choose other bends if you require but additional lead time and tooling charges may apply. Sheet metal bend radii if these guidelines are not followed more research and or some form of analysis may be requried. Creating a chart with your standard values is a key component of speeding up this process.

The bend allowance formula takes into account the geometries of bending and the properties of your metal to determine the bend allowance. Specifing a bend radius from here will help prevent hair line cracks. You will need to know your material thickness mt the bend angle b the inside radius ir and the k factor k. Sheet metal bend radius.

Parker steel home page metric metal.