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Sheet metal forming is a fabrication process that involves bending flat sheet metal into a desired shape using a press brake machine. The method applies force between a punch (upper tool) and a die (bottom tool), allowing for precise linear bends in various metal materials and thicknesses. All press brakes have CNC controllers to ensure accurate part positioning and repeatability. This method is ideal for producing parts such as U-bends, flanges, channels, and internal bends. Lead times for qualified formed parts can be as quick as three days.
To ensure high-quality, efficient production of formed sheet metal parts, it’s essential to follow specific design guidelines. These best practices help maintain consistency in manufacturing and allow for faster turnaround times. Here are the key guidelines and capabilities for successful sheet metal forming:
Maximum Bend Length | The maximum bend length for sheet metal parts is 47 inches. |
Minimum Qualifying Part Size | The smallest size for a qualifying formed part is 0.05 in x 0.05 in (12.7mm x 12.7mm). |
Maximum Pressing Force | The press brake can handle up to a maximum force of 80 tons. |
Bend Angles | Sheet metal parts can be bent at angles ranging from a 1-degree ‘kick’ to 135 degrees. |
Bending Output | The process can produce linear bends, including both external and internal flanges. |
Maximum U-Channel Ratio | The maximum allowable ratio for U-channel parts is 2:1 (width to height). |
Internal Radius Tooling Options |
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Offsets | Offsets are formed using standard offset tooling sizes. |
Hems | Closed hems can be formed up to 47 inches, while open hems can be formed up to 36 inches. |
Forming Best Practices |
Ensure that bends are adequately relieved in the CAD design to avoid complications during manufacturing.
For the best pricing and lead times, it is recommended to use the radius tooling that the manufacturer has suggested.
Proper placement of nearby features, such as holes, hardware inserts, and other bends, is crucial for achieving optimal results. |
We are excited to offer automated design analysis for all sheet metal components. This service highlights potential challenges during the fabrication process, helping to ensure a smoother production flow. With our DFM feedback, you’ll receive valuable insights that can enhance the quality and manufacturability of your sheet metal parts—all within minutes. This quick, detailed feedback helps you make informed design adjustments early, saving time and reducing the likelihood of costly revisions later on.
We offer diverse metal materials suitable for custom-formed sheet metal parts. The material thickness directly impacts the maximum bending capabilities, so please keep that in mind when selecting materials for your projects.
Material | Grade | Thicknesses Available |
Aluminum |
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Steel |
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Stainless Steel |
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Copper |
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Brass |
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Press brake forming is a widely used manufacturing process across various industries, including energy storage, computer electronics, robotics, medical, and aerospace. This versatile method creates a wide range of sheet metal parts. Some typical applications include:
These parts are essential in many high-performance applications, offering durability, precision, and versatility in design.
Junying Metal Manufacturing has developed high-level manufacturing technique in production fields of machining.
Address: Gang Kou, Zhong Shan City, Guang Dong Province, China.
