Bend Radius Sheet Metal Stainless Steel Metric

The bend allowance added to the flange lengths is equal to the total flat length of the part.

Bend radius sheet metal stainless steel metric.

Table 1 preferred recommended 90 degree bend radii for various sheet metals. Therefore the bend deduction equals the difference between the mold line lengths and the total flat length. Making a custom metal form using sheet metal is a surprisingly delicate process. We go beyond the general rules of sheet metal bending as our customers want tight bend radii for sheet metal parts.

Sheet metal bend radii if these guidelines are not followed more research and or some form of analysis may be requried. In a previous bending basics article you mention a material s tensile reduction percentage used for calculating the minimum inside bend radius of various metals. Category thickness minimum bend bend radius. 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.

The minimum bend radius data shown in these charts is measured to the inside of the bend. The bend deduction sometimes called the bend compensation describes how much the outside of the sheet has been stretched. Aluminum where necessary 5052 h32 may be bent to 1t and 6061 t6 to 1 1 2t. Since commercial sheet metal bending can be done with less concern for stresses caused during forming operation the radius can be near zero for thin sheet metal.

22 gauge 0 030 0 76 mm 0 5 12 7mm. 22 gauge 0 030 0 76 mm. It is possible to choose other bends if you require but additional lead time and tooling charges may apply. The tables below show bend radii and minimum bend sizes for materials and tooling combinations stocked by protocase.

To get the best results a design engineer has to account for many factors such as the end use of the metal form the material the sheet metal is made of plain steel stainless steel etc and the dimensions shape of the final product. Recommended minimum bend radii for steel and aluminum. Divide 50 by the material s reduction percentage as specified by the material supplier subtract by 1 and then multiply by the plate thickness. Understanding the bend allowance and consequently the bend deduction of a part is a crucial first step to understanding how sheet metal parts are fabricated.

Microform precision llc 4244 south market court suite a sacramento ca 95834 phone. You described a rough rule to find a steel s minimum bend radius. As this happens you gain a small amount of total length in your part. When the sheet metal is put through the process of bending the metal around the bend is deformed and stretched.