{"id":20120,"date":"2024-05-23T07:58:04","date_gmt":"2024-05-22T23:58:04","guid":{"rendered":"https:\/\/firstmold.com\/?p=20120"},"modified":"2025-07-15T13:33:01","modified_gmt":"2025-07-15T05:33:01","slug":"climb-milling-and-conventional-milling","status":"publish","type":"post","link":"https:\/\/firstmold.com\/es\/guides\/climb-milling-and-conventional-milling\/","title":{"rendered":"Selecci\u00f3n del fresado de escalada y el fresado convencional en el mecanizado CNC"},"content":{"rendered":"<p>En el proceso de fresado de las m\u00e1quinas CNC, la selecci\u00f3n entre el fresado ascendente y el fresado convencional es una cuesti\u00f3n t\u00e9cnica importante que afecta en gran medida a la precisi\u00f3n y la calidad superficial de las piezas.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-definition-of-climb-milling-and-conventional-milling\">Definici\u00f3n de fresado de ascenso y fresado convencional<\/h2>\n\n\n\n<p>En funci\u00f3n de la posici\u00f3n relativa de la fresa y de la direcci\u00f3n de avance de la pieza, el proceso de fresado se divide en dos tipos: fresado ascendente y fresado convencional. Desde el punto de vista de la direcci\u00f3n de avance de la pieza, cuando la fresa se encuentra en el lado izquierdo de la pieza, se denomina fresado en ascenso o fresado hacia arriba. Cuando la fresa est\u00e1 en el lado derecho de la pieza, se denomina fresado convencional o fresado descendente.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1000\" height=\"700\" src=\"https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Up-milling-and-down-milling-climb-milling-and-conventional-milling.webp\" alt=\"Fresado ascendente y fresado descendente fresado ascendente y fresado convencional\" class=\"wp-image-20122\" srcset=\"https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Up-milling-and-down-milling-climb-milling-and-conventional-milling.webp 1000w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Up-milling-and-down-milling-climb-milling-and-conventional-milling-300x210.webp 300w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Up-milling-and-down-milling-climb-milling-and-conventional-milling-768x538.webp 768w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Up-milling-and-down-milling-climb-milling-and-conventional-milling-18x12.webp 18w\" sizes=\"(max-width: 1000px) 100vw, 1000px\" \/><\/figure>\n\n\n\n<p><strong>Fresado de escalada<\/strong>: Al principio, el espesor de la viruta es m\u00e1ximo y disminuye a medida que avanza el corte. El resultado es una deformaci\u00f3n m\u00ednima de la viruta y una fuerza de corte dirigida hacia la pieza.<\/p>\n\n\n\n<p><strong>Fresado convencional<\/strong>: Al principio, el espesor de la viruta es cero, y aumenta hasta su m\u00e1ximo al final del corte. Este proceso incluye un efecto de pulido, ya que la fuerza de corte tiende a levantar la pieza (tiene tendencia a levantar la pieza).<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-analysis-of-up-milling-and-down-milling-processes-in-cnc-machining\">An\u00e1lisis de los procesos de fresado ascendente y descendente en el mecanizado CNC<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-1-characteristics-of-climb-milling\">1. Caracter\u00edsticas del fresado por escalada<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"h-advantages-of-climb-milling\">Ventajas del fresado en pendiente:<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>El grosor de la viruta var\u00eda de m\u00e1ximo a cero, lo que evita el deslizamiento de la herramienta y prolonga su vida \u00fatil.<\/li>\n\n\n\n<li>Produce un mejor acabado superficial.<\/li>\n\n\n\n<li>La fuerza de fresado vertical se presiona siempre hacia la mesa de trabajo, lo que aumenta la fiabilidad del posicionamiento y la sujeci\u00f3n de la pieza.<\/li>\n\n\n\n<li>Menor consumo de energ\u00eda durante el mecanizado.<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"h-disadvantages-of-climb-milling\">Desventajas del fresado en escalada:<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>No es adecuada para fresar piezas con superficies duras.<\/li>\n\n\n\n<li>Si hay holgura entre el tornillo de avance y la tuerca, el tornillo de avance puede vibrar durante el mecanizado.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-2-characteristics-of-conventional-milling\">2. Caracter\u00edsticas del fresado convencional<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"h-disadvantages-of-conventional-milling\">Desventajas del fresado convencional:<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>El grosor de la viruta var\u00eda de cero a m\u00e1ximo, lo que hace que la herramienta se deslice sobre la superficie de la pieza antes de cortar el metal. Esto genera una alta fricci\u00f3n y calor, formando potencialmente una capa endurecida, reduciendo la durabilidad de la herramienta y afectando a la calidad de la superficie.<\/li>\n\n\n\n<li>La fuerza de fresado vertical ascendente tiende a levantar y desestabilizar la pieza.<\/li>\n\n\n\n<li>Mayor consumo de energ\u00eda.<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"h-advantages-of-conventional-milling\">Ventajas del fresado convencional:<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Adecuada para fresar piezas con superficies duras.<\/li>\n\n\n\n<li>No hay vibraciones en el mecanismo de avance de la mesa de trabajo a pesar de la presencia de holgura.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-3-stress-analysis-of-tools-in-climb-and-conventional-milling\">3. An\u00e1lisis de tensiones de las herramientas en el fresado trepador y convencional<\/h3>\n\n\n\n<p>En el fresado ascendente, la fuerza de la pieza sobre la herramienta es tal que empuja la herramienta hacia la pieza. En el fresado convencional, la fuerza tiende a elevar la herramienta alej\u00e1ndola de la pieza.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img decoding=\"async\" width=\"1000\" height=\"400\" src=\"https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Analysis-of-Tool-Forces-During-Milling.webp\" alt=\"An\u00e1lisis de las fuerzas de la herramienta durante el fresado\" class=\"wp-image-20123\" srcset=\"https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Analysis-of-Tool-Forces-During-Milling.webp 1000w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Analysis-of-Tool-Forces-During-Milling-300x120.webp 300w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Analysis-of-Tool-Forces-During-Milling-768x307.webp 768w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Analysis-of-Tool-Forces-During-Milling-18x7.webp 18w\" sizes=\"(max-width: 1000px) 100vw, 1000px\" \/><figcaption class=\"wp-element-caption\">An\u00e1lisis de las fuerzas de la herramienta durante el fresado<\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">An\u00e1lisis de selecci\u00f3n del fresado de escalada y el fresado convencional en el mecanizado CNC<\/h2>\n\n\n\n<p>En las m\u00e1quinas CNC con mecanismos de husillo de bolas, la holgura puede eliminarse completamente mediante la precarga. En las m\u00e1quinas CNC equipadas con mecanismos de fresado ascendente, se prefiere el fresado ascendente debido a su gran durabilidad de la herramienta, la buena calidad de la superficie y el bajo consumo de energ\u00eda. Sin embargo, ciertas condiciones de corte especiales pueden requerir un fresado convencional. Por lo tanto, debe realizarse un an\u00e1lisis de correlaci\u00f3n antes de seleccionar el m\u00e9todo de fresado ascendente o el convencional.<\/p>\n\n\n\n<p>En las fresadoras convencionales, debido a la holgura lateral en el conjunto de husillo y tuerca, se suele utilizar el fresado convencional para evitar el desplazamiento de la mesa de trabajo y garantizar unas operaciones de fresado suaves. Sin embargo, para las aleaciones de Al-Mg que requieren cantidades de corte bajas y una alta calidad superficial, puede emplearse el fresado escalonado.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-choice-of-milling-method-in-rough-machining\">Elecci\u00f3n del m\u00e9todo de fresado en el mecanizado en bruto<\/h3>\n\n\n\n<p>La superficie exterior de la pieza en bruto suele ser m\u00e1s dura y quebradiza que el material del n\u00facleo, especialmente en el caso de las piezas en bruto obtenidas por oxicorte. Con velocidades de herramienta elevadas (normalmente por encima de 2000 r\/min) en los centros de mecanizado, el uso del fresado convencional para el mecanizado en bruto puede hacer que el filo de corte salga repentinamente de la pieza, rompiendo las virutas bruscamente y transfiriendo las vibraciones resultantes al filo de corte. Esto puede provocar f\u00e1cilmente el astillado o la rotura del fr\u00e1gil filo de corte en los centros de mecanizado. Por lo tanto, el fresado ascendente es adecuado para el mecanizado en bruto en centros de mecanizado. Las herramientas de mecanizado en bruto especializadas para fresadoras convencionales son m\u00e1s resistentes y funcionan a velocidades m\u00e1s bajas, lo que provoca una separaci\u00f3n m\u00e1s lenta de las virutas y las hace adecuadas para el mecanizado en bruto convencional.<\/p>\n\n\n\n<p>En el mecanizado de desbaste, debido a la gran profundidad y anchura de corte, la velocidad relativa entre la pieza y la herramienta aumenta en el fresado convencional, ya que la direcci\u00f3n de corte se opone a la direcci\u00f3n de avance, lo que incrementa la carga sobre el husillo y los motores gu\u00eda, provocando un aumento de las vibraciones. Cuando esta carga alcanza un determinado nivel, puede activar alarmas y paradas de la m\u00e1quina. En las mismas condiciones, el fresado convencional consume entre 10% y 20% m\u00e1s potencia que el fresado trepante. Por lo tanto, el fresado trepante es adecuado para el mecanizado en bruto en centros de mecanizado, mientras que el fresado convencional es adecuado para el mecanizado en bruto en fresadoras convencionales.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">An\u00e1lisis de casos de mecanizado CNC<\/h2>\n\n\n\n<p>Como se muestra en la imagen inferior, describe un proceso de mecanizado en el que la pieza en bruto es cuadrada, y la tarea consiste en mecanizar el contorno s\u00f3lido utilizando una fresadora CNC. Bas\u00e1ndose en el an\u00e1lisis anterior, se prefiere el fresado ascendente en el mecanizado CNC. Para esta pieza, si se utiliza el fresado trepante, la trayectoria de la herramienta ser\u00eda D \u2192 C \u2192 B \u2192 A. Sin embargo, en la producci\u00f3n real, a menudo se produce una \"colisi\u00f3n de herramientas\". Se analizaron las razones de este fen\u00f3meno.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img decoding=\"async\" width=\"1000\" height=\"579\" src=\"https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Selection-Analysis-of-Climb-Milling-and-Conventional-Milling-Case.webp\" alt=\"An\u00e1lisis de selecci\u00f3n del caso de fresado por escalada y fresado convencional\" class=\"wp-image-20125\" srcset=\"https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Selection-Analysis-of-Climb-Milling-and-Conventional-Milling-Case.webp 1000w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Selection-Analysis-of-Climb-Milling-and-Conventional-Milling-Case-300x174.webp 300w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Selection-Analysis-of-Climb-Milling-and-Conventional-Milling-Case-768x445.webp 768w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Selection-Analysis-of-Climb-Milling-and-Conventional-Milling-Case-18x10.webp 18w\" sizes=\"(max-width: 1000px) 100vw, 1000px\" \/><\/figure>\n\n\n\n<p>1. Cuando la herramienta se desplaza del punto D al C y a lo largo del arco, la herramienta avanza de D a C. Durante el mecanizado, el avance de la herramienta aumenta gradualmente desde cero hasta que se engrana toda la periferia de la herramienta.<\/p>\n\n\n\n<p>2. En el caso en el que toda la periferia de la herramienta est\u00e1 engranada, esta parte es fresado ascendente, mientras que esta parte es fresado convencional.<\/p>\n\n\n\n<p>Para la parte de la pieza en bruto que hay que cortar (representada por E), se realiza un fresado convencional. Durante el fresado convencional, bas\u00e1ndose en el an\u00e1lisis anterior, la herramienta tiende a acercarse a la pieza. Del mismo modo, la parte de la pieza en bruto a cortar (representada por E) tambi\u00e9n tiende a acercarse a la herramienta bas\u00e1ndose en las caracter\u00edsticas de la fuerza y la fuerza de reacci\u00f3n.<\/p>\n\n\n\n<p>3. Cuando la herramienta sigue mecanizando y la pieza E est\u00e1 a punto de ser cortada, como E no est\u00e1 apoyada y tiende a acercarse a la herramienta, en el momento en que E es cortada, E se acerca mucho a la herramienta, provocando una colisi\u00f3n de la herramienta.<\/p>\n\n\n\n<p>Bas\u00e1ndose en el an\u00e1lisis exhaustivo anterior, este proceso no deber\u00eda dar prioridad al fresado de ascenso. En su lugar, deber\u00eda utilizarse primero el fresado convencional, dejando un margen para el mecanizado (A \u2192 B \u2192 C \u2192 D), seguido del fresado de ascenso (D \u2192 C \u2192 B \u2192 A) para garantizar que no se produce desgaste de la herramienta durante el mecanizado y mantener la calidad de la superficie.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-conclusion\">Conclusi\u00f3n<\/h2>\n\n\n\n<p>El corte de metales es un proceso complejo que implica intrincadas interacciones entre <a href=\"https:\/\/firstmold.com\/es\/tips\/types-of-cnc-tools\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>herramientas de corte<\/strong><\/a> y materiales de la pieza de trabajo. Factores como par\u00e1metros de corte, materiales de la herramienta, \u00e1ngulos geom\u00e9tricos, <a href=\"https:\/\/firstmold.com\/es\/guides\/jigs-and-fixtures\/\"><strong>accesorios<\/strong><\/a>y los fluidos de corte influyen en el proceso de corte.<\/p>\n\n\n\n<p>En determinados procesos de mecanizado CNC, los distintos m\u00e9todos de fresado pueden dar resultados diferentes. Comprender las caracter\u00edsticas del fresado trepante y convencional es crucial para el mecanizado y la programaci\u00f3n CNC.<\/p>","protected":false},"excerpt":{"rendered":"<p>Investigue las diferencias entre el fresado ascendente y el fresado convencional, y su selecci\u00f3n adecuada durante el proceso de mecanizado.<\/p>","protected":false},"author":5,"featured_media":20126,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"categories":[47],"tags":[52],"class_list":["post-20120","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-guides","tag-cnc-machining"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v22.3 (Yoast SEO v27.5) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Climb Milling and Conventional Milling<\/title>\n<meta name=\"description\" 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