Fillet (mechanics)

<p>In <a href="/facts/Mechanical_engineering/cbId4fye">mechanical engineering</a>, a fillet (pronounced /ˈfɪlɪt/, like "fill it") is a rounding of an interior or exterior corner of a part. An interior or exterior corner, with an angle or type of <a href="/facts/Bevel/ErgYGVs9">bevel</a>, is called a "<a href="/facts/Chamfer/IbIyx4LG">chamfer</a>". Fillet geometry, when on an interior corner is a line of <a href="/facts/Concave_function/HxVEBkce">concave function</a>, whereas a fillet on an exterior corner is a line of <a href="/facts/Convex_function/IbzG5SLF">convex function</a> (in these cases, fillets are typically referred to as rounds). Fillets commonly appear on <a href="/facts/Welded/6EJ62mYV">welded</a>, <a href="/facts/Soldered/GBvJH75t">soldered</a>, or <a href="/facts/Brazed/JBgswMLw">brazed</a> joints.
</p><p>Depending on a <a href="/facts/Geometric_modeling_kernel/1Grlk4M6">geometric modelling kernel</a> different CAD software products may provide different fillet functionality.  Usually fillets can be quickly designed onto parts using <a href="/facts/Solid_modeling/12J69aud">3D solid modeling</a> engineering by picking edges of interest and invoking the function. Smooth edges connecting two simple flat features are generally simple for a computer to create and fast for a human user to specify. Once these features are included in the CAD design of a part, they are often manufactured automatically using <a href="/facts/Cnc/B2c7UbaX">computer-numerical control</a>.
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Fillet (mechanics) open-in-new

Fillet (mechanics)