Since the stainless steel has a high yield point and a high hardness, the cold work hardening effect is remarkable. The characteristics of the stainless steel plate when bent are as follows:
1) Because the thermal conductivity is worse than ordinary low carbon steel, the elongation is low, resulting in large deformation force;
2) 321 stainless steel sheet has a strong tendency to rebound when compared with carbon steel during bending;
3) Since the stainless steel plate has a low elongation rate relative to carbon steel, the bending angle R of the workpiece during bending is greater than that of carbon steel, otherwise cracks may occur;
4) Due to the high hardness of the SUS304 stainless steel plate, the cold hardening effect is significant. Therefore, when selecting the bending tool, the tool steel with a heat treatment hardness of 60HRC or more should be selected, and its surface roughness is an order of magnitude higher than that of a carbon steel bending tool.
Based on the above characteristics, in general:
1. Under unit size, the thicker the sheet, the greater the required bending force, and the greater the sheet thickness is, the greater the margin of bending force when selecting the bending equipment;
2. Under unit size, the greater the tensile strength, the smaller the elongation, the greater the required bending force, the greater the bending angle;
3. In the case of the corresponding thickness and bending radius in the design drawings, according to experience, the unfolding size of a curved workpiece is the addition of the two sides of the right-angle plus minus two plate thickness, which can fully meet the design accuracy requirements and can be calculated according to the empirical formula. Simplify the calculation process to greatly increase production efficiency;
4. The greater the yield strength of the material, the greater the amount of elastic recovery. In order to obtain a 90 degree angle of the bending member, the smaller the angle of the desired knife is to be designed. Relative to the same thickness of stainless steel steel plate bending angle is greater, this should pay special attention to it or else there will be bending cracks, affecting the workpiece strength.
(This article consists of: SUS304 stainless steel plate)
1) Because the thermal conductivity is worse than ordinary low carbon steel, the elongation is low, resulting in large deformation force;
2) 321 stainless steel sheet has a strong tendency to rebound when compared with carbon steel during bending;
3) Since the stainless steel plate has a low elongation rate relative to carbon steel, the bending angle R of the workpiece during bending is greater than that of carbon steel, otherwise cracks may occur;
4) Due to the high hardness of the SUS304 stainless steel plate, the cold hardening effect is significant. Therefore, when selecting the bending tool, the tool steel with a heat treatment hardness of 60HRC or more should be selected, and its surface roughness is an order of magnitude higher than that of a carbon steel bending tool.
Based on the above characteristics, in general:
1. Under unit size, the thicker the sheet, the greater the required bending force, and the greater the sheet thickness is, the greater the margin of bending force when selecting the bending equipment;
2. Under unit size, the greater the tensile strength, the smaller the elongation, the greater the required bending force, the greater the bending angle;
3. In the case of the corresponding thickness and bending radius in the design drawings, according to experience, the unfolding size of a curved workpiece is the addition of the two sides of the right-angle plus minus two plate thickness, which can fully meet the design accuracy requirements and can be calculated according to the empirical formula. Simplify the calculation process to greatly increase production efficiency;
4. The greater the yield strength of the material, the greater the amount of elastic recovery. In order to obtain a 90 degree angle of the bending member, the smaller the angle of the desired knife is to be designed. Relative to the same thickness of stainless steel steel plate bending angle is greater, this should pay special attention to it or else there will be bending cracks, affecting the workpiece strength.
(This article consists of: SUS304 stainless steel plate)
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