304 stainless steel plate bending performance

304 stainless steel plate is widely popular in the decoration industry for its strong characteristics such as good corrosion resistance, durability, high temperature resistance, easy processing, and simple maintenance. But do you know the bending performance of 304 stainless steel plates?

304 stainless steel plate has a significant cold work hardening effect due to its high yield point and high hardness. The characteristics of 304 stainless steel plates when bending are as follows: due to poorer thermal conductivity than ordinary low carbon steel and low elongation, the required deformation force is large; stainless steel plates have a strong tendency to rebound compared with carbon steel when bending ; Due to the lower elongation of stainless steel plates compared to carbon steel, the bending angle R of the workpiece during bending must be greater than that of carbon steel, otherwise cracks may occur; due to the high hardness of the 304 stainless steel plate, the cold work hardening effect is significant, so when choosing a press bending tool When selecting tool steel, the heat treatment hardness should be above 60HRC, and its surface roughness is an order of magnitude higher than that of carbon steel bending tools.

According to the characteristics, generally speaking, 304 stainless steel plates: under unit size, the thicker the plate, the greater the bending force required, and as the plate thickness increases, the margin for bending force should be larger when selecting bending equipment; unit Under the size, the greater the tensile strength, the smaller the elongation, the greater the required bending force, and the larger the bending angle should be.

According to the actual situation of the 304 stainless steel plate, the unfolded size of a bent workpiece is the sum of the right-angled sides minus two plate thicknesses, which can fully meet the design accuracy requirements.

Calculating the expansion amount based on the empirical formula of the 304 stainless steel plate can simplify the calculation process and greatly improve production efficiency; the greater the yield strength of the material, the greater the elastic recovery amount. In order to obtain a 90-degree angle of the bent part, the angle of the required press knife must be The smaller the design. Compared with carbon steel, the 304 stainless steel plate with the same plate thickness has a larger bending angle. Special attention should be paid to this point, otherwise bending cracks will appear and affect the strength of the workpiece.