EUROLAB laboratory provides testing and compliance services within the scope of ISO 16630 standard. ISO 16630 describes a method for determining the hole expansion rate in metallic sheets and strips in the 1,2 mm to 6,0 mm thickness range and at least 90 mm wide.
This test is normally applicable to sheet metal and is used to evaluate the product's suitability for flange forming.
In automotive part manufacturing, sheet metal is primarily processed by cutting, bending and drawing-drawing processes. These operations include upward bending (pushing) the flanges (rims) around the drilled holes and this can cause the material to tear.
Various test methods are available to determine the suitability of sheet metal for the respective forming processes. The hole tapping test is one of the best methods for assessing the suitability of sheet metal for creating such "flanges" because it closely resembles the process used to create such flanges under manufacturing conditions. flanges (p-lung edges) begin with punched holes.
Various test methods are available to determine the suitability of the sheet for the respective forming operations. The hole tapping test is one of the best methods for assessing the suitability of sheet metal to form such "flanges" because it is very similar to the process used to create such flanges (plunge wheels) under manufacturing conditions, starting with punched holes.
One of the most widely used manufacturing processes in sheet metal working, cutting poses a challenge to the mechanical properties of the primary material. With shear cutting, the ductility of the newly formed edge can be significantly reduced compared to the base material.
Due to this reduced ductility, edge crack initiation may occur during subsequent forming operations. During the forming process, the material is considered susceptible to edge cracking if it cracks almost exclusively from the sheet edge.
EUROLAB assists manufacturers with ISO 16630 test compliance. Our test experts, with their professional working mission and principles, provide you, our manufacturers and suppliers, the best service and controlled testing process in our laboratories. Thanks to these services, businesses receive more effective, high-performance and quality testing services and provide safe, fast and uninterrupted service to their customers.
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