Bending Spring Steel Sheet

After a bending operation residual stresses will cause the sheet metal to spring back slightly.

Bending spring steel sheet.

Blue tempered and polished spring steel. To a press brake operator a bending angle is different from a bent angle and it all has to do with that ever present forming variable. The bending angle is the beginning angle to which the operator overbends so that the metal springs back to the desired bent angle. Here s how it s done.

Determine your minimum bend by measuring the distance from your closest feature i e. Springback is ever present in sheet metal forming. Due to this elastic recovery it is necessary to over bend the sheet a precise amount to acheive the desired bend radius and bend angle. The force must exceed the material s yield strength to achieve a plastic deformation.

Bending is one of the most common sheet metal fabrication operations. The greater the yield strength of the material the greater the spring back and the smaller the angle of the punch die should be designed for the angle of 90 degrees of the bending part. Compared to carbon steel for the same thickness of stainless steel the bending angle is larger special attention should be paid to this point otherwise the bending crack will appear affecting the strength of the workpiece. Choose a bend radius that matches your minimum bend.

Cooling down slowly it will not re hard and you can treat it as any other common steel. This is done through the application of force on a workpiece. A cutout or the edge of your flange to your bend. The final bend radius and bend angle can be approximated from the sheet thickness k factor material yield strength and modulus of elasticity and the initial bend angle and bend radius.

125 through 24 scaleless tempered. So then you can deform it reheat it and cool it down fast dump it red hot in water or oil which will harden it again. Shaping a spring to it s desired shape. Also known as press braking flanging die bending folding and edging this method is used to deform a material to an angular shape.

Tempered spring steel is commonly referred to as high carbon steel and is useful for a number of applications including use in springs and steel tapes. 002 through 125 widths in stock. If you want to bend it you have to have to heat it to red glowing when it will loose its hardness. Part of the fundamental manufacturing processes video series this program examines two of the oldest manufacturing processes.