{"id":20971,"date":"2025-08-15T00:27:32","date_gmt":"2025-08-15T08:27:32","guid":{"rendered":"https:\/\/shengenfab.com\/?p=20971"},"modified":"2025-08-15T00:51:39","modified_gmt":"2025-08-15T08:51:39","slug":"true-position-in-gdt","status":"publish","type":"post","link":"https:\/\/shengenfab.com\/es\/true-position-in-gdt\/","title":{"rendered":"Posici\u00f3n verdadera en GD&T: Qu\u00e9 significa y por qu\u00e9 es importante\uff1f."},"content":{"rendered":"
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La posici\u00f3n real es uno de los conceptos m\u00e1s utilizados en Dimensionado Geom\u00e9trico y Tolerancia (GD&T). Ofrece una forma m\u00e1s completa de definir la ubicaci\u00f3n de los elementos de una pieza, especialmente los orificios y las ranuras. En lugar de cotas X e Y est\u00e1ndar con tolerancias individuales, la Posici\u00f3n Verdadera controla la desviaci\u00f3n global de una ubicaci\u00f3n perfecta mediante una zona de tolerancia circular o cil\u00edndrica.<\/p>

By using True Position, engineers can control how much a feature can shift in any direction from its ideal location. This approach is much more effective than separating \u00b1 tolerances for each coordinate. It also works better for features aligning with mating parts or assemblies. Let’s break it down from the start.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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\u00bfQu\u00e9 es la posici\u00f3n real en GD&T?<\/h2>

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La posici\u00f3n real es la ubicaci\u00f3n exacta de un elemento, como un orificio, un pasador o una ranura, tal y como se define en relaci\u00f3n con los puntos de referencia. En pocas palabras, nos dice d\u00f3nde debe colocarse un elemento en una pieza. En lugar de centrarse en los valores X e Y exactos, define una zona, normalmente un c\u00edrculo o cilindro, dentro de la cual debe situarse el centro del elemento.<\/p>

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This zone is centered on the theoretical location, called the “nominal” location. The part is considered acceptable if the actual center of the feature falls within the zone. The size of the zone depends on the allowed tolerance, which is specified in the feature control frame.<\/p>

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For example, if a hole’s true position tolerance is 0.2 mm, the center of that hole must fall within a 0.2 mm diameter circle around the exact target location. Whether the hole shifts left, right, up, or down, it’s still okay if it stays inside that circular area.<\/p>

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True Position is often used with other GD&T symbols, such as datums, material condition modifiers like MMC (Maximum Material Condition), and basic dimensions. These elements work together to describe a feature’s location, size, and limits more clearly than traditional tolerancing.<\/p>

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S\u00edmbolos y terminolog\u00eda clave<\/h3>

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To work with True Position, it’s important to understand the key symbols and terms used in a GD&T feature control frame. These elements define how the tolerance is applied and what measurements matter.<\/p>

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