The minimum distance between the leading edge of a hole through a bend should be equal to the thickness of material plus the bend radius or two times the material thickness, whichever is greater. So you decided to design your own sheet metal part. Use the following simple guidelines to formulate and design the type of sheet metal bracket you will need to successfully meet your requirements. (0.3 mm) to allow for flushing and blow-drying between the surfaces. The minimum width is equal to two times the material thickness or 3.200 mm, whichever is greater, while the maximum length is five times the. Loading. The minimum distance from a counterbore to a bend is four times the material thickness plus the bend radius. The last thing we can do is right click on our Reference Line and click Select Midpoint. When using slots and tabs, the maximum width of the slot must be greater than the thickness of the tab and the tab length should equal the material thickness. The minimum distance a curl should be from an external bend is nine times the material thickness plus the radius of the curl. Remember we can easily add a button for the Sheet Metal Gusset feature on any toolbar by using Customize. Design drain holes/vent holes for plating solutions and rinsing. We can either select a bend face or two flat faces that are connected to a bend. The minimum diameter of a teardrop hem is equal to the material thickness, with a return flange height equal to or greater than four times the material thickness, and a minimum opening of 1/4 of the material thickness. Sheetmetal Design Tips . The minimum distance between tabs is equal to the material thickness or 1.00 mm (0.04 inch), whichever is greater. Tapped holes may need to be re-tapped after plating to ensure accuracy. The minimum distance a curl should be from an internal bend is six times the material thickness plus the radius of the curl. The maximum diameter should be six times the material thickness, and a maximum depth of one-half the inside diameter. One solution is to raise welds on embossed areas by 0.015 in. Spot welding should be restricted to joining coplanar surfaces. The minimum diameter of a hole should be equal to the thickness of the material or 1.00 mm (0.04 inch), whichever is greater. This website uses cookies to improve your experience while you navigate through the website. A minimum of 50% contact between the hardware and the countersink is required. A point (shown in pink in the graphics area) is also automatically selected for us for the last box, Reference Point. The minimum distance from a semi-pierced hole and a form is three times the material thickness plus the form radius. The minimum distance from a lance to a hole is three times the material thickness. The minimum distance a hem should be from an internal bend is five times the material thickness. Sheetmetal parts are typically cheaper and faster to produce than their billet machined counterparts. Last Updated on January 3, 2020 by DesignPoint Team. Maskings of stampings and fabrications to anodize certain areas are not recommended. Not only is this a standard feature but it’s also very easy to use and extremely configurable. Design Guidelines: Sheet Metal Fabrication Our basic guidelines for sheet metal fabrication include important design considerations to help improve part manufacturability, enhance cosmetic appearance, and reduce overall production time. Using 20 times the material thickness is ideal. Click Sheet Metal Gusset (Sheet Metal toolbar) or Insert > Sheet Metal > Sheet Metal Gusset. This category only includes cookies that ensures basic functionalities and security features of the website. The minimum distance that a dimple should be from a bend is two times the material thickness plus the inside radius of the dimple plus the radius of the bend. Design guides are available in printed format and as downloadable PDF documents. The minimum distance from an extruded hole to a bend is three times the material thickness plus the bend radius. Any cookies that may not be particularly necessary for the website to function and is used specifically to collect user personal data via analytics, ads, other embedded contents are termed as non-necessary cookies.