About stainless steel profile bending, I believe it is not unfamiliar to everyone. It is widely seen in our daily lives. Stainless steel profile bending processed parts have a beautiful appearance and artistic shape. By planing, shearing, and bending colored stainless steel sheets, they can be processed into door frames, stainless steel product screens, and decorative projects, bringing us a lot of convenience in life. Stainless steel profile bending not only has the value of corrosion resistance, oxidation resistance, and environmental protection but also has the value of recyclability and remanufacturing. So, what are the key advantages of stainless steel profile bending? Let's find out together with Liheng Stainless Steel.
I. Comparative advantages of stainless steel profile bending:
1. Stainless steel profiles do not fade or discolor. The color of stainless steel products is deposited on the surface through physical reactions and high-temperature ionization of inert gases in a high vacuum environment. The adhesion is 100 times that of ordinary paint, and it is scratch-resistant. It will never fade or discolor in indoor environments.
2. It does not change the original surface gloss of stainless steel. Although common painting techniques have many colors, they will cover the original texture or gloss of stainless steel surfaces. However, plating not only does not, but even after plating, the gloss of the product will be more prominent, crystal clear.
3. Stainless steel does not rust or oxidize. Ordinary iron products will rust even if they are painted shortly after. Aluminum and copper products will oxidize after a long time, with aluminum producing small black spots and copper producing copper green. Stainless steel, on the other hand, does not. The surface of stainless steel with 304 material has a layer of colorless and transparent chromium oxide protective layer, like an invisible plastic wrap, preventing corrosion from water vapor and oxygen in the air. Therefore, it does not rust or oxidize. The protective effect is even better after the plating process.
4. Stainless steel is fire-resistant and corrosion-resistant. Wooden products have a lower ignition point and are prone to fire hazards. Therefore, it is recommended to use less wood in decoration. In addition, ordinary wooden products will rot when exposed to water, and even insects may crawl out from inside the wood. Stainless steel is produced through rolling in a blast furnace, so it is fire-resistant. Furthermore, the good rust resistance of stainless steel ensures corrosion resistance.
5. Stainless steel profile bending key point: good hardness and no cracking. Artistic glass is often used in many designs as a decorative product and as a screen. However, it is vulnerable to collisions, and the glass may even explode, posing significant safety risks. Stainless steel, on the other hand, is different. Its exceptionally tough steel is the preferred material for all cutting tools.
II. Key points of stainless steel profile bending: Due to the high yield point, high hardness, and significant cold work hardening effect of stainless steel itself, the following characteristics are observed during the bending of stainless steel plates:
Key point 1: Stainless steel profile bending requires greater deformation force due to its poor thermal conductivity and low elongation compared to ordinary low-carbon steel.
Key point 2: Stainless steel profile bending has a strong tendency to spring back compared to carbon steel during bending.
Key point 3: Due to the lower elongation of stainless steel compared to carbon steel, the bending angle R of the workpiece in stainless steel profile bending should be larger than that of carbon steel to avoid the possibility of cracking.
Key point 4: Due to the high hardness and significant cold work hardening effect of stainless steel profile bending, when selecting bending tools, tool steels with a heat treatment hardness of over 60HRC should be chosen. The surface roughness of the bending tools should be one order of magnitude higher than that of carbon steel bending tools.
According to the above characteristics, generally speaking, when processing stainless steel plates, the greater the unit thickness, the greater the bending force required. Moreover, the bending force will also increase with the increase in the thickness of the stainless steel plate. When selecting bending equipment, the bending force should be greater. The higher the tensile strength and the lower the elongation, the greater the bending force required, and the larger the bending angle should be. In the design, when the plate thickness corresponds to the bending radius, according to experience, the unfolded dimension of a bent workpiece is obtained by adding and subtracting the two right angles of the plate thickness. This can fully meet the requirements of design accuracy. Calculating the unfolding dimension based on empirical formulas can simplify the calculation process and greatly improve production efficiency. The greater the yield strength of the material, the greater the elastic recovery, and the smaller the angle at which the press knife needs to be designed in order to achieve a 90-degree angle for the bent part. Compared to carbon steel with the same plate thickness, stainless steel has a larger bending angle, which should be particularly noted, otherwise bending cracks may occur, affecting the strength of the workpiece.
III. The springback in stainless steel profile bending is indeed troublesome and is related to many factors:
1. Hardness of stainless steel in profile bending: The greater the hardness, the greater the springback. Last time, when using 301-EH material, the springback reached 14 degrees.
2. Ratio of bending radius to material thickness in stainless steel profile bending: The larger the ratio, the greater the springback.
3. In stainless steel profile bending, the material SUS301 has a larger springback than SUS304. Under the same conditions, 304 has a springback 2 degrees smaller than 301. In addition, Japanese 301 has a larger springback than Taiwanese material.
4. The forming method in stainless steel profile bending also makes a difference. One-step forming has greater springback compared to multiple forming.
5. In stainless steel profile bending, the adjustment should be made based on the degree of springback. It is important to note that there are angle springback and radius springback. The specific situation needs to be analyzed accordingly. Of course, if the technician has good skills, they will make adjustments through displacement and inform the designer to make corresponding changes. Generally, the technician will try adjusting by moving 5 strips at a time. This relies on the technician's skills and experience.
I. Comparative advantages of stainless steel profile bending:
1. Stainless steel profiles do not fade or discolor. The color of stainless steel products is deposited on the surface through physical reactions and high-temperature ionization of inert gases in a high vacuum environment. The adhesion is 100 times that of ordinary paint, and it is scratch-resistant. It will never fade or discolor in indoor environments.
2. It does not change the original surface gloss of stainless steel. Although common painting techniques have many colors, they will cover the original texture or gloss of stainless steel surfaces. However, plating not only does not, but even after plating, the gloss of the product will be more prominent, crystal clear.
3. Stainless steel does not rust or oxidize. Ordinary iron products will rust even if they are painted shortly after. Aluminum and copper products will oxidize after a long time, with aluminum producing small black spots and copper producing copper green. Stainless steel, on the other hand, does not. The surface of stainless steel with 304 material has a layer of colorless and transparent chromium oxide protective layer, like an invisible plastic wrap, preventing corrosion from water vapor and oxygen in the air. Therefore, it does not rust or oxidize. The protective effect is even better after the plating process.
4. Stainless steel is fire-resistant and corrosion-resistant. Wooden products have a lower ignition point and are prone to fire hazards. Therefore, it is recommended to use less wood in decoration. In addition, ordinary wooden products will rot when exposed to water, and even insects may crawl out from inside the wood. Stainless steel is produced through rolling in a blast furnace, so it is fire-resistant. Furthermore, the good rust resistance of stainless steel ensures corrosion resistance.
5. Stainless steel profile bending key point: good hardness and no cracking. Artistic glass is often used in many designs as a decorative product and as a screen. However, it is vulnerable to collisions, and the glass may even explode, posing significant safety risks. Stainless steel, on the other hand, is different. Its exceptionally tough steel is the preferred material for all cutting tools.
II. Key points of stainless steel profile bending: Due to the high yield point, high hardness, and significant cold work hardening effect of stainless steel itself, the following characteristics are observed during the bending of stainless steel plates:
Key point 1: Stainless steel profile bending requires greater deformation force due to its poor thermal conductivity and low elongation compared to ordinary low-carbon steel.
Key point 2: Stainless steel profile bending has a strong tendency to spring back compared to carbon steel during bending.
Key point 3: Due to the lower elongation of stainless steel compared to carbon steel, the bending angle R of the workpiece in stainless steel profile bending should be larger than that of carbon steel to avoid the possibility of cracking.
Key point 4: Due to the high hardness and significant cold work hardening effect of stainless steel profile bending, when selecting bending tools, tool steels with a heat treatment hardness of over 60HRC should be chosen. The surface roughness of the bending tools should be one order of magnitude higher than that of carbon steel bending tools.
According to the above characteristics, generally speaking, when processing stainless steel plates, the greater the unit thickness, the greater the bending force required. Moreover, the bending force will also increase with the increase in the thickness of the stainless steel plate. When selecting bending equipment, the bending force should be greater. The higher the tensile strength and the lower the elongation, the greater the bending force required, and the larger the bending angle should be. In the design, when the plate thickness corresponds to the bending radius, according to experience, the unfolded dimension of a bent workpiece is obtained by adding and subtracting the two right angles of the plate thickness. This can fully meet the requirements of design accuracy. Calculating the unfolding dimension based on empirical formulas can simplify the calculation process and greatly improve production efficiency. The greater the yield strength of the material, the greater the elastic recovery, and the smaller the angle at which the press knife needs to be designed in order to achieve a 90-degree angle for the bent part. Compared to carbon steel with the same plate thickness, stainless steel has a larger bending angle, which should be particularly noted, otherwise bending cracks may occur, affecting the strength of the workpiece.
III. The springback in stainless steel profile bending is indeed troublesome and is related to many factors:
1. Hardness of stainless steel in profile bending: The greater the hardness, the greater the springback. Last time, when using 301-EH material, the springback reached 14 degrees.
2. Ratio of bending radius to material thickness in stainless steel profile bending: The larger the ratio, the greater the springback.
3. In stainless steel profile bending, the material SUS301 has a larger springback than SUS304. Under the same conditions, 304 has a springback 2 degrees smaller than 301. In addition, Japanese 301 has a larger springback than Taiwanese material.
4. The forming method in stainless steel profile bending also makes a difference. One-step forming has greater springback compared to multiple forming.
5. In stainless steel profile bending, the adjustment should be made based on the degree of springback. It is important to note that there are angle springback and radius springback. The specific situation needs to be analyzed accordingly. Of course, if the technician has good skills, they will make adjustments through displacement and inform the designer to make corresponding changes. Generally, the technician will try adjusting by moving 5 strips at a time. This relies on the technician's skills and experience.
