{"id":5843,"date":"2025-06-04T11:44:29","date_gmt":"2025-06-04T03:44:29","guid":{"rendered":"http:\/\/www.washxing.com\/?p=5843"},"modified":"2025-06-18T14:04:55","modified_gmt":"2025-06-18T06:04:55","slug":"causes-and-solutions-for-tool-marks-in-machining-metal","status":"publish","type":"post","link":"https:\/\/www.washxing.com\/pt\/causas-e-solucoes-para-as-marcas-de-ferramentas-na-maquinagem-de-metais\/","title":{"rendered":"Causas e solu\u00e7\u00f5es para marcas de ferramentas na maquinagem de metais"},"content":{"rendered":"<section class=\"wp-block-themepark-block-themepark-area block_layout thempark-block undefined\" id=\"\" style=\"background-color:#ffffff;padding-bottom:30px;padding-top:30px;\" data-swiper-parallax=\"-700\"><div class=\"block_layout_in\" style=\"\">\n<div class=\"wp-block-column block_layout_in\"><header class=\"post_title_head\" ><div class=\"title\"><h1 class=\"h1title\" style=\"font-size:22px;color:#1c1c1c;\"> Causas e solu\u00e7\u00f5es para marcas de ferramentas na maquinagem de metais <\/h1><\/div><div class=\"description\"style=\"background-color:#ffffff;\"><time style=\"color:#dd9933;\"><i class=\"fa fa-calendar\"><\/i>4 de junho de 2025<\/time><span style=\"color:#dd9933;\"><i class=\"fa fa-folder\"><\/i><a style=\"color:#dd9933;\" href=\"https:\/\/www.washxing.com\/pt\/category\/resources\/case-studies\/\">Estudos de caso<\/a> <a style=\"color:#dd9933;\" href=\"https:\/\/www.washxing.com\/pt\/category\/resources\/\">Recursos<\/a> <\/span> <span style=\"color:#dd9933;\"><i class=\"fa fa-eye\"><\/i>3857<\/span><\/div><\/header>\n\n\n<div class=\"wp-block-themepark-block-themepark-xian theme_fang_out\" style=\"text-align:left;\"><div class=\"fangbox\" style=\"width:100%;height:1px;background-color:#666666;\"><\/div><\/div>\n\n\n\n<div class=\"wp-block-themepark-block-themepark-wright content-super-p\" style=\"font-size:16px;line-height:29px;text-indent:2em;color:#666666;\">\n<div class=\"wp-block-column\"><p>As pe\u00e7as met\u00e1licas de precis\u00e3o s\u00e3o frequentemente fabricadas utilizando v\u00e1rias tecnologias de maquinagem de precis\u00e3o, sendo a maquinagem CNC um m\u00e9todo comum. Normalmente, as pe\u00e7as de precis\u00e3o exigem padr\u00f5es elevados tanto em termos de dimens\u00f5es como de aspeto.<\/p>\n<p>Por conseguinte, quando se utilizam metais de maquinagem CNC, como o alum\u00ednio e o cobre, a ocorr\u00eancia de marcas e linhas de ferramentas na superf\u00edcie do produto acabado \u00e9 uma preocupa\u00e7\u00e3o. Este artigo discute as raz\u00f5es que causam marcas e linhas de ferramentas durante a maquinagem de produtos met\u00e1licos. Tamb\u00e9m propomos potenciais solu\u00e7\u00f5es.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-36878\" src=\"https:\/\/waykenrm.com\/wp-content\/uploads\/2023\/08\/tool-mark-in-machining-optimized.jpg\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" srcset=\"https:\/\/waykenrm.com\/wp-content\/uploads\/2023\/08\/tool-mark-in-machining-optimized.jpg 800w, https:\/\/waykenrm.com\/wp-content\/uploads\/2023\/08\/tool-mark-in-machining-300x139-optimized.jpg 300w, https:\/\/waykenrm.com\/wp-content\/uploads\/2023\/08\/tool-mark-in-machining-150x69-optimized.jpg 150w, https:\/\/waykenrm.com\/wp-content\/uploads\/2023\/08\/tool-mark-in-machining-768x355-optimized.jpg 768w\" alt=\"marca de ferramenta na maquinagem\" width=\"800\" height=\"370\" \/><\/p>\n<h2>For\u00e7a de aperto insuficiente dos dispositivos de fixa\u00e7\u00e3o<\/h2>\n<p><strong>Causas<\/strong>: Alguns produtos de metal de cavidade necessitam de utilizar dispositivos de v\u00e1cuo e podem ter dificuldade em gerar suc\u00e7\u00e3o suficiente devido \u00e0 presen\u00e7a de irregularidades na superf\u00edcie, resultando em marcas ou linhas de ferramentas.<\/p>\n<p><strong>Solu\u00e7\u00e3o<\/strong>: Para atenuar este problema, considere a transi\u00e7\u00e3o da simples aspira\u00e7\u00e3o por v\u00e1cuo para a aspira\u00e7\u00e3o por v\u00e1cuo combinada com press\u00e3o ou apoio lateral. Em alternativa, explore op\u00e7\u00f5es de fixa\u00e7\u00e3o alternativas com base em estruturas de pe\u00e7as espec\u00edficas, adaptando a solu\u00e7\u00e3o ao problema em causa.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-36877 perfmatters-lazy entered pmloaded\" src=\"https:\/\/waykenrm.com\/wp-content\/uploads\/2023\/08\/tool-cutting-surface-optimized.jpg\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" srcset=\"https:\/\/waykenrm.com\/wp-content\/uploads\/2023\/08\/tool-cutting-surface-optimized.jpg 800w, https:\/\/waykenrm.com\/wp-content\/uploads\/2023\/08\/tool-cutting-surface-300x138-optimized.jpg 300w, https:\/\/waykenrm.com\/wp-content\/uploads\/2023\/08\/tool-cutting-surface-150x69-optimized.jpg 150w, https:\/\/waykenrm.com\/wp-content\/uploads\/2023\/08\/tool-cutting-surface-768x353-optimized.jpg 768w\" alt=\"superf\u00edcie de corte da ferramenta\" width=\"800\" height=\"368\" data-src=\"https:\/\/waykenrm.com\/wp-content\/uploads\/2023\/08\/tool-cutting-surface-optimized.jpg\" data-srcset=\"https:\/\/waykenrm.com\/wp-content\/uploads\/2023\/08\/tool-cutting-surface-optimized.jpg 800w, https:\/\/waykenrm.com\/wp-content\/uploads\/2023\/08\/tool-cutting-surface-300x138-optimized.jpg 300w, https:\/\/waykenrm.com\/wp-content\/uploads\/2023\/08\/tool-cutting-surface-150x69-optimized.jpg 150w, https:\/\/waykenrm.com\/wp-content\/uploads\/2023\/08\/tool-cutting-surface-768x353-optimized.jpg 768w\" data-sizes=\"(max-width: 800px) 100vw, 800px\" data-ll-status=\"loaded\" \/><\/p>\n<h2>Factores relacionados com o processo<\/h2>\n<p><strong>Causas<\/strong>: Certos processos de fabrico de produtos podem contribuir para o problema. Por exemplo, produtos como as conchas traseiras de PCs tablet s\u00e3o submetidos a uma sequ\u00eancia de passos de maquinagem que envolve a perfura\u00e7\u00e3o de orif\u00edcios laterais seguida de fresagem CNC dos bordos. Esta sequ\u00eancia pode dar origem a marcas de ferramenta vis\u00edveis quando a fresagem atinge as posi\u00e7\u00f5es dos furos laterais.<\/p>\n<p><strong>Solu\u00e7\u00e3o<\/strong>: Um exemplo comum deste problema ocorre quando a liga de alum\u00ednio \u00e9 escolhida para os inv\u00f3lucros de produtos electr\u00f3nicos. Para o resolver, o processo pode ser modificado, substituindo a perfura\u00e7\u00e3o lateral e a fresagem por apenas fresagem CNC. Ao mesmo tempo, garantindo um engate consistente da ferramenta e reduzindo o corte irregular durante a fresagem.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-36879 perfmatters-lazy entered pmloaded\" src=\"https:\/\/waykenrm.com\/wp-content\/uploads\/2023\/08\/cutting-tool-path-optimized.jpg\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" srcset=\"https:\/\/waykenrm.com\/wp-content\/uploads\/2023\/08\/cutting-tool-path-optimized.jpg 800w, https:\/\/waykenrm.com\/wp-content\/uploads\/2023\/08\/cutting-tool-path-300x157-optimized.jpg 300w, https:\/\/waykenrm.com\/wp-content\/uploads\/2023\/08\/cutting-tool-path-150x79-optimized.jpg 150w, https:\/\/waykenrm.com\/wp-content\/uploads\/2023\/08\/cutting-tool-path-768x402-optimized.jpg 768w\" alt=\"trajet\u00f3ria da ferramenta de corte\" width=\"800\" height=\"419\" data-src=\"https:\/\/waykenrm.com\/wp-content\/uploads\/2023\/08\/cutting-tool-path-optimized.jpg\" data-srcset=\"https:\/\/waykenrm.com\/wp-content\/uploads\/2023\/08\/cutting-tool-path-optimized.jpg 800w, https:\/\/waykenrm.com\/wp-content\/uploads\/2023\/08\/cutting-tool-path-300x157-optimized.jpg 300w, https:\/\/waykenrm.com\/wp-content\/uploads\/2023\/08\/cutting-tool-path-150x79-optimized.jpg 150w, https:\/\/waykenrm.com\/wp-content\/uploads\/2023\/08\/cutting-tool-path-768x402-optimized.jpg 768w\" data-sizes=\"(max-width: 800px) 100vw, 800px\" data-ll-status=\"loaded\" \/><\/p>\n<h2>Programa\u00e7\u00e3o inadequada do engate da trajet\u00f3ria da ferramenta<\/h2>\n<p><strong>Causas<\/strong>: Este problema surge normalmente durante a fase de maquinagem de contorno 2D da produ\u00e7\u00e3o do produto. A m\u00e1 conce\u00e7\u00e3o do percurso da ferramenta no programa CNC deixa marcas nos pontos de entrada e sa\u00edda da ferramenta.<\/p>\n<p><strong>Solu\u00e7\u00e3o<\/strong>: Para enfrentar o desafio de evitar marcas de ferramentas nos pontos de entrada e sa\u00edda, uma abordagem t\u00edpica envolve a introdu\u00e7\u00e3o de uma ligeira sobreposi\u00e7\u00e3o na dist\u00e2ncia de engate da ferramenta (aproximadamente 0,2 mm). Esta t\u00e9cnica serve para contornar potenciais imprecis\u00f5es na precis\u00e3o do parafuso de avan\u00e7o da m\u00e1quina.<\/p>\n<p>Embora esta estrat\u00e9gia evite efetivamente a forma\u00e7\u00e3o de marcas de ferramentas, provoca um elemento de maquinagem repetitiva quando o material do produto \u00e9 um metal macio. Consequentemente, esta sec\u00e7\u00e3o pode apresentar varia\u00e7\u00f5es de textura e cor em compara\u00e7\u00e3o com outras \u00e1reas.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-36880 perfmatters-lazy entered pmloaded\" src=\"https:\/\/waykenrm.com\/wp-content\/uploads\/2023\/08\/optimized-toolpath-optimized.jpg\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" srcset=\"https:\/\/waykenrm.com\/wp-content\/uploads\/2023\/08\/optimized-toolpath-optimized.jpg 800w, https:\/\/waykenrm.com\/wp-content\/uploads\/2023\/08\/optimized-toolpath-300x149-optimized.jpg 300w, https:\/\/waykenrm.com\/wp-content\/uploads\/2023\/08\/optimized-toolpath-150x74-optimized.jpg 150w, https:\/\/waykenrm.com\/wp-content\/uploads\/2023\/08\/optimized-toolpath-768x380-optimized.jpg 768w\" alt=\"percurso de ferramenta optimizado\" width=\"800\" height=\"396\" data-src=\"https:\/\/waykenrm.com\/wp-content\/uploads\/2023\/08\/optimized-toolpath-optimized.jpg\" data-srcset=\"https:\/\/waykenrm.com\/wp-content\/uploads\/2023\/08\/optimized-toolpath-optimized.jpg 800w, https:\/\/waykenrm.com\/wp-content\/uploads\/2023\/08\/optimized-toolpath-300x149-optimized.jpg 300w, https:\/\/waykenrm.com\/wp-content\/uploads\/2023\/08\/optimized-toolpath-150x74-optimized.jpg 150w, https:\/\/waykenrm.com\/wp-content\/uploads\/2023\/08\/optimized-toolpath-768x380-optimized.jpg 768w\" data-sizes=\"(max-width: 800px) 100vw, 800px\" data-ll-status=\"loaded\" \/><\/p>\n<h2>Padr\u00f5es de escamas de peixe em superf\u00edcies planas maquinadas<\/h2>\n<p><strong>Causas<\/strong>: Escamas de peixe ou padr\u00f5es circulares que aparecem nas superf\u00edcies planas do produto. As ferramentas de corte utilizadas para o processamento de metais macios como o alum\u00ednio\/cobre s\u00e3o geralmente fresas de material de liga com 3 a 4 canais. T\u00eam uma dureza que varia entre HRC55 e HRC65. Estas ferramentas de corte de fresagem s\u00e3o executadas utilizando a aresta inferior da ferramenta, e a superf\u00edcie da pe\u00e7a pode desenvolver padr\u00f5es distintos de escamas de peixe, afectando o seu aspeto geral.<\/p>\n<p><strong>Solu\u00e7\u00e3o<\/strong>: Normalmente observada em produtos com elevadas exig\u00eancias de planicidade e em superf\u00edcies planas com estruturas rebaixadas. Uma solu\u00e7\u00e3o \u00e9 mudar para ferramentas de corte feitas de material sint\u00e9tico de diamante, que ajuda a obter acabamentos de superf\u00edcie mais suaves.<\/p>\n<h2>Envelhecimento e desgaste dos componentes do equipamento<\/h2>\n<p><strong>Causas<\/strong>: As marcas de ferramentas na superf\u00edcie do produto s\u00e3o atribu\u00eddas ao envelhecimento e ao desgaste do fuso, dos rolamentos e do parafuso de avan\u00e7o do equipamento. Al\u00e9m disso, par\u00e2metros inadequados de folga do sistema CNC contribuem para marcas de ferramentas pronunciadas, particularmente ao maquinar cantos arredondados.<\/p>\n<p><strong>Solu\u00e7\u00e3o<\/strong>: Estes problemas resultam de factores relacionados com o equipamento e podem ser resolvidos atrav\u00e9s de manuten\u00e7\u00e3o e substitui\u00e7\u00e3o espec\u00edficas.<\/p>\n<h2>Conclus\u00e3o<\/h2>\n<p>Achieving an ideal surface in the \u00a0CNC machining metals\u00a0demands useful approaches. There are different methods to avoid tool marks and lines that involve a combination of equipment maintenance, fixture enhancements, process adjustments, and programming refinements. By understanding and rectifying these factors, manufacturers can ensure that precision components not only meet dimensional criteria but also exhibit the desired aesthetic qualities.<\/p>\n\n<\/div>\n<\/div>\n<\/div>\n<\/div><div class=\"layout_badh\"><\/div><\/section>\n\n\n\n<p><\/p>\n\n\n\n<section class=\"wp-block-themepark-block-themepark-area block_layout thempark-block undefined\" id=\"\" style=\"background-color:#ffffff;padding-bottom:30px;padding-top:30px;\" data-swiper-parallax=\"-700\"><div class=\"block_layout_in\" style=\"\">\n<div class=\"wp-block-column block_layout_in\">\n<div class=\"wp-block-themepark-block-themepark-wright content-super-p\" style=\"font-size:12px;line-height:20px;padding:1px 10px 4px 10px;\">\n<div class=\"wp-block-column\">\n<h2 class=\"wp-block-heading has-text-align-left has-black-color has-text-color has-link-color has-medium-font-size wp-elements-03e3bd26e3714570f9cb9e0c231642cf\">Recomenda\u00e7\u00f5es <\/h2>\n\n\n\n<p class=\"has-text-align-center has-monte-white-color has-text-color has-link-color has-normal-font-size wp-elements-a419f2b814e1bdd68ac5a703475046d3\"><\/p>\n\n\n\n<div class=\"wp-block-themepark-block-themepark-xian theme_fang_out\" style=\"text-align:left;padding-top:8px;padding-bottom:33px;\"><div class=\"fangbox\" style=\"width:21px;height:4px;background-color:#f29900;\"><div class=\"bkbor\" style=\"width:218px;background-color:#f29900;\"><\/div><\/div><\/div>\n<\/div>\n<\/div>\n\n\n<div class=\"product_loop  radius   mian_loop\" id=\"pro_list_2\"><div class=\"product_post  dbms h_w\" ><div class=\"product_info\"><h3 class=\"pro_title date-title-box\"><a href=\"https:\/\/www.washxing.com\/pt\/what-is-sfm-a-complete-guide-to-surface-feet-per-minute-in-machining-5\/\"><div class=\"date-title\"><time><span>16<\/span><span>2025.05<\/span> <\/time><span class=\"tittext\">Explica\u00e7\u00e3o do subs\u00eddio de maquinagem: O seu c\u00e1lculo e as suas implica\u00e7\u00f5es<\/span>   <\/div><\/a><\/h3><p class=\"des\">Machining allowance is a fundamental concept in manufacturing. It is a common engineering practice in CNC precision machining, ensuring dimensional accuracy, surface quality, and the production of reliable and functional components for a range of industries, including aerospace, defense, and medical. This article attempts to answer the question: what is machining allowance? We will take a deep dive into the concept of machining allowance and discuss why machinists leave machining allowanc&#8230;<\/p><a href=\"https:\/\/www.washxing.com\/pt\/what-is-sfm-a-complete-guide-to-surface-feet-per-minute-in-machining-5\/\" class=\"product_pic postatty\" style=\"max-height:149px;\"\"><img loading=\"lazy\" decoding=\"async\" class=\"lazyload\"  src=\"https:\/\/www.washxing.com\/wp-content\/themes\/smartenterprise\/images\/loadings.png\"data-src=\"https:\/\/www.washxing.com\/wp-content\/uploads\/2025\/05\/DM_20250522181511_001.jpg\" width=\"800\" height=\"400\" alt=\"Explica\u00e7\u00e3o do subs\u00eddio de maquinagem: O seu c\u00e1lculo ...\" title=\"Explica\u00e7\u00e3o do subs\u00eddio de maquinagem: O seu c\u00e1lculo ...\"\/><\/a><\/div><\/div><div class=\"product_post  dbms h_w\" ><div class=\"product_info\"><h3 class=\"pro_title date-title-box\"><a href=\"https:\/\/www.washxing.com\/pt\/how-to-determine-the-rotation-center-of-rotary-when-operating-a-4-axis-cnc-machine\/\"><div class=\"date-title\"><time><span>04<\/span><span>2025.06<\/span> <\/time><span class=\"tittext\">Como determinar o centro de rota\u00e7\u00e3o do Rotary ao operar uma m\u00e1quina CNC de 4 eixos?<\/span>   <\/div><\/a><\/h3><p class=\"des\">Atualmente, uma mesa rotativa de quatro eixos \u00e9 uma pe\u00e7a de equipamento comum na oficina mec\u00e2nica. Para completar a maquina\u00e7\u00e3o de v\u00e1rias faces numa s\u00f3 coordenada, as coordenadas de programa\u00e7\u00e3o devem ser sincronizadas com as coordenadas da mesa rotativa. Neste artigo, vamos partilhar um m\u00e9todo para determinar o centro de rota\u00e7\u00e3o de uma mesa rotativa de 4 eixos. Aqui, mostramos uma mesa rotativa de 4 eixos que gira em torno do eixo X de uma m\u00e1quina-ferramenta, onde o eixo de rota\u00e7\u00e3o \u00e9 chamado de eixo A. Numa palavra,...<\/p><a href=\"https:\/\/www.washxing.com\/pt\/how-to-determine-the-rotation-center-of-rotary-when-operating-a-4-axis-cnc-machine\/\" class=\"product_pic postatty\" style=\"max-height:149px;\"\"><img loading=\"lazy\" decoding=\"async\" class=\"lazyload\"  src=\"https:\/\/www.washxing.com\/wp-content\/themes\/smartenterprise\/images\/loadings.png\"data-src=\"https:\/\/www.washxing.com\/wp-content\/uploads\/2025\/06\/DM_20250604114642_001.jpg\" width=\"801\" height=\"400\" alt=\"Como determinar o centro de rota\u00e7\u00e3o de uma m\u00e1quina rotativa ...\" title=\"Como determinar o centro de rota\u00e7\u00e3o de uma m\u00e1quina rotativa ...\"\/><\/a><\/div><\/div><div class=\"product_post  dbms h_w\" ><div class=\"product_info\"><h3 class=\"pro_title date-title-box\"><a href=\"https:\/\/www.washxing.com\/pt\/what-is-sfm-a-complete-guide-to-surface-feet-per-minute-in-machining-6\/\"><div class=\"date-title\"><time><span>22<\/span><span>2025.05<\/span> <\/time><span class=\"tittext\">What Is SFM? A Complete Guide To Surface Feet Per Minute In Machining<\/span>   <\/div><\/a><\/h3><p class=\"des\">SFM, meaning Surface Feet per Minute in CNC machining, measures how fast a cutting tool moves across a workpiece. It is expressed in feet per minute. SFM combines the tool or workpiece diameter with the spindle speed (RPM). A larger diameter or higher RPM results in a higher SFM. Machinists use surface feet per minute to determine the best cutting speed for a material. Different materials have recommended SFM values for optimal performance. For example, 303 annealed stainless steel has an&#8230;<\/p><a href=\"https:\/\/www.washxing.com\/pt\/what-is-sfm-a-complete-guide-to-surface-feet-per-minute-in-machining-6\/\" class=\"product_pic postatty\" style=\"max-height:149px;\"\"><img loading=\"lazy\" decoding=\"async\" class=\"lazyload\"  src=\"https:\/\/www.washxing.com\/wp-content\/themes\/smartenterprise\/images\/loadings.png\"data-src=\"https:\/\/www.washxing.com\/wp-content\/uploads\/2025\/05\/DM_20250522180647_001.jpg\" width=\"768\" height=\"384\" alt=\"What Is SFM? A Complete Guide To Surface Feet P...\" title=\"What Is SFM? A Complete Guide To Surface Feet P...\"\/><\/a><\/div><\/div><div class=\"product_post  dbms h_w\" ><div class=\"product_info\"><h3 class=\"pro_title date-title-box\"><a href=\"https:\/\/www.washxing.com\/pt\/how-to-avoid-machine-collision-in-the-machining-process\/\"><div class=\"date-title\"><time><span>04<\/span><span>2025.06<\/span> <\/time><span class=\"tittext\">Como evitar a colis\u00e3o de m\u00e1quinas no processo de maquinagem?<\/span>   <\/div><\/a><\/h3><p class=\"des\">A colis\u00e3o de m\u00e1quinas sempre foi um desafio inevit\u00e1vel na maquina\u00e7\u00e3o de prot\u00f3tipos e pe\u00e7as. Erros do operador, como n\u00e3o efetuar as defini\u00e7\u00f5es da ferramenta, podem levar a colis\u00f5es. Isto resultar\u00e1 em ferramentas partidas, pe\u00e7as de trabalho sucateadas e reordena\u00e7\u00e3o e reprocessamento de materiais. Para al\u00e9m disso, sem o configurador autom\u00e1tico de ferramentas, a configura\u00e7\u00e3o manual de ferramentas ao introduzir um erro de dados de valor Z tamb\u00e9m pode causar colis\u00f5es na m\u00e1quina. Neste artigo, partilharemos as nossas experi\u00eancias resumidas para o ajudar a evitar este problema. Antes de...<\/p><a href=\"https:\/\/www.washxing.com\/pt\/how-to-avoid-machine-collision-in-the-machining-process\/\" class=\"product_pic postatty\" style=\"max-height:149px;\"\"><img loading=\"lazy\" decoding=\"async\" class=\"lazyload\"  src=\"https:\/\/www.washxing.com\/wp-content\/themes\/smartenterprise\/images\/loadings.png\"data-src=\"https:\/\/www.washxing.com\/wp-content\/uploads\/2025\/06\/DM_20250604113746_001.jpg\" width=\"800\" height=\"400\" alt=\"Como evitar a colis\u00e3o de m\u00e1quinas no processo de maquinagem...\" title=\"Como evitar a colis\u00e3o de m\u00e1quinas no processo de maquinagem...\"\/><\/a><\/div><\/div><\/div><\/div>\n<\/div><div class=\"layout_badh\"><\/div><\/section>","protected":false},"excerpt":{"rendered":"","protected":false},"author":1,"featured_media":5877,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"themepark_post_bcolor":"#f5f5f5","themepark_post_width":"1022px","themepark_post_img":"","themepark_post_img_po":"left","themepark_post_img_re":false,"themepark_post_img_cover":false,"themepark_post_img_fixed":false,"themepark_post_hide_title":true,"themepark_post_main_b":"#f5f5f5","themepark_post_main_p":100,"themepark_paddingblock":true,"footnotes":""},"categories":[33,7],"tags":[],"class_list":["post-5843","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-case-studies","category-resources"],"metadata":{"themepark_post_bcolor":["#f5f5f5"],"themepark_post_width":["1022px"],"themepark_post_img_po":["left"],"themepark_post_main_b":["#f5f5f5"],"themepark_post_main_p":["100"],"themepark_auto_metas":["a:1:{s:6:\"ector0\";s:8626:\"Precision metal parts are often manufactured using various precision machining technologies, with CNC machining being a common method. Usually, precision parts typically demand high standards for both dimensions and appearance.\r\n\r\nTherefore, when using CNC machining metals such as aluminum and copper, the occurrence of tool marks and lines on the finished product\u2019s surface is a concern. This article discusses the reasons that cause tool marks and lines during the machining of metal products. We also propose potential solutions.\r\n\r\n<img class=\"alignnone size-full wp-image-36878\" src=\"https:\/\/waykenrm.com\/wp-content\/uploads\/2023\/08\/tool-mark-in-machining-optimized.jpg\" sizes=\"(max-width: 800px) 100vw, 800px\" srcset=\"https:\/\/waykenrm.com\/wp-content\/uploads\/2023\/08\/tool-mark-in-machining-optimized.jpg 800w, https:\/\/waykenrm.com\/wp-content\/uploads\/2023\/08\/tool-mark-in-machining-300x139-optimized.jpg 300w, https:\/\/waykenrm.com\/wp-content\/uploads\/2023\/08\/tool-mark-in-machining-150x69-optimized.jpg 150w, https:\/\/waykenrm.com\/wp-content\/uploads\/2023\/08\/tool-mark-in-machining-768x355-optimized.jpg 768w\" alt=\"tool mark in machining\" width=\"800\" height=\"370\" \/>\r\n<h2>Insufficient Clamping Force of Fixtures<\/h2>\r\n<strong>Causes<\/strong>: Some cavity metal products need to use vacuum fixtures, and may struggle to generate sufficient suction due to the presence of surface irregularities, resulting in tool marks or lines.\r\n\r\n<strong>Solution<\/strong>: To mitigate this, consider transitioning from simple vacuum suction to vacuum suction combined with pressure or lateral support. Alternatively, explore alternative fixture options based on specific part structures, tailoring the solution to the particular problem.\r\n\r\n<img class=\"alignnone size-full wp-image-36877 perfmatters-lazy entered pmloaded\" src=\"https:\/\/waykenrm.com\/wp-content\/uploads\/2023\/08\/tool-cutting-surface-optimized.jpg\" sizes=\"(max-width: 800px) 100vw, 800px\" srcset=\"https:\/\/waykenrm.com\/wp-content\/uploads\/2023\/08\/tool-cutting-surface-optimized.jpg 800w, https:\/\/waykenrm.com\/wp-content\/uploads\/2023\/08\/tool-cutting-surface-300x138-optimized.jpg 300w, https:\/\/waykenrm.com\/wp-content\/uploads\/2023\/08\/tool-cutting-surface-150x69-optimized.jpg 150w, https:\/\/waykenrm.com\/wp-content\/uploads\/2023\/08\/tool-cutting-surface-768x353-optimized.jpg 768w\" alt=\"tool cutting surface\" width=\"800\" height=\"368\" data-src=\"https:\/\/waykenrm.com\/wp-content\/uploads\/2023\/08\/tool-cutting-surface-optimized.jpg\" data-srcset=\"https:\/\/waykenrm.com\/wp-content\/uploads\/2023\/08\/tool-cutting-surface-optimized.jpg 800w, https:\/\/waykenrm.com\/wp-content\/uploads\/2023\/08\/tool-cutting-surface-300x138-optimized.jpg 300w, https:\/\/waykenrm.com\/wp-content\/uploads\/2023\/08\/tool-cutting-surface-150x69-optimized.jpg 150w, https:\/\/waykenrm.com\/wp-content\/uploads\/2023\/08\/tool-cutting-surface-768x353-optimized.jpg 768w\" data-sizes=\"(max-width: 800px) 100vw, 800px\" data-ll-status=\"loaded\" \/>\r\n<h2>Process-related Factors<\/h2>\r\n<strong>Causes<\/strong>: Certain product manufacturing processes may contribute to the issue. For instance, products like tablet PC rear shells undergo a sequence of machining steps involving punching side holes followed by CNC milling of the edges. This sequence can lead to noticeable tool marks when milling reaches the side-hole positions.\r\n\r\n<strong>Solution<\/strong>: A common instance of this problem occurs when the aluminum alloy is chosen for electronic product shells. To resolve it, the process can be modified by replacing the side hole punching plus milling with only CNC milling. At the same time, ensuring consistent tool engagement and reducing uneven cutting when milling.\r\n\r\n<img class=\"alignnone size-full wp-image-36879 perfmatters-lazy entered pmloaded\" src=\"https:\/\/waykenrm.com\/wp-content\/uploads\/2023\/08\/cutting-tool-path-optimized.jpg\" sizes=\"(max-width: 800px) 100vw, 800px\" srcset=\"https:\/\/waykenrm.com\/wp-content\/uploads\/2023\/08\/cutting-tool-path-optimized.jpg 800w, https:\/\/waykenrm.com\/wp-content\/uploads\/2023\/08\/cutting-tool-path-300x157-optimized.jpg 300w, https:\/\/waykenrm.com\/wp-content\/uploads\/2023\/08\/cutting-tool-path-150x79-optimized.jpg 150w, https:\/\/waykenrm.com\/wp-content\/uploads\/2023\/08\/cutting-tool-path-768x402-optimized.jpg 768w\" alt=\"cutting tool path\" width=\"800\" height=\"419\" data-src=\"https:\/\/waykenrm.com\/wp-content\/uploads\/2023\/08\/cutting-tool-path-optimized.jpg\" data-srcset=\"https:\/\/waykenrm.com\/wp-content\/uploads\/2023\/08\/cutting-tool-path-optimized.jpg 800w, https:\/\/waykenrm.com\/wp-content\/uploads\/2023\/08\/cutting-tool-path-300x157-optimized.jpg 300w, https:\/\/waykenrm.com\/wp-content\/uploads\/2023\/08\/cutting-tool-path-150x79-optimized.jpg 150w, https:\/\/waykenrm.com\/wp-content\/uploads\/2023\/08\/cutting-tool-path-768x402-optimized.jpg 768w\" data-sizes=\"(max-width: 800px) 100vw, 800px\" data-ll-status=\"loaded\" \/>\r\n<h2>Inadequate Programming of Tool Path Engagement<\/h2>\r\n<strong>Causes<\/strong>: This issue commonly arises during the 2D contour machining phase of product production. Poorly designed tool path engagement in the CNC program, leaving traces at the entry and exit points of the tool.\r\n\r\n<strong>Solution<\/strong>: To address the challenge of avoiding tool marks at entry and exit points, a typical approach involves introducing a slight overlap in tool engagement distance (approximately 0.2mm). This technique serves to circumvent potential inaccuracies in the machine\u2019s lead screw precision.\r\n\r\nWhile this strategy effectively prevents the formation of tool marks, it causes an element of repetitive machining when the material of the product is a soft metal. Consequently, this section may exhibit variations in texture and color compared to other areas.\r\n\r\n<img class=\"alignnone size-full wp-image-36880 perfmatters-lazy entered pmloaded\" src=\"https:\/\/waykenrm.com\/wp-content\/uploads\/2023\/08\/optimized-toolpath-optimized.jpg\" sizes=\"(max-width: 800px) 100vw, 800px\" srcset=\"https:\/\/waykenrm.com\/wp-content\/uploads\/2023\/08\/optimized-toolpath-optimized.jpg 800w, https:\/\/waykenrm.com\/wp-content\/uploads\/2023\/08\/optimized-toolpath-300x149-optimized.jpg 300w, https:\/\/waykenrm.com\/wp-content\/uploads\/2023\/08\/optimized-toolpath-150x74-optimized.jpg 150w, https:\/\/waykenrm.com\/wp-content\/uploads\/2023\/08\/optimized-toolpath-768x380-optimized.jpg 768w\" alt=\"optimized toolpath\" width=\"800\" height=\"396\" data-src=\"https:\/\/waykenrm.com\/wp-content\/uploads\/2023\/08\/optimized-toolpath-optimized.jpg\" data-srcset=\"https:\/\/waykenrm.com\/wp-content\/uploads\/2023\/08\/optimized-toolpath-optimized.jpg 800w, https:\/\/waykenrm.com\/wp-content\/uploads\/2023\/08\/optimized-toolpath-300x149-optimized.jpg 300w, https:\/\/waykenrm.com\/wp-content\/uploads\/2023\/08\/optimized-toolpath-150x74-optimized.jpg 150w, https:\/\/waykenrm.com\/wp-content\/uploads\/2023\/08\/optimized-toolpath-768x380-optimized.jpg 768w\" data-sizes=\"(max-width: 800px) 100vw, 800px\" data-ll-status=\"loaded\" \/>\r\n<h2>Fish Scale Patterns on Flat Machined Surfaces<\/h2>\r\n<strong>Causes<\/strong>: Fish scale or circular patterns appearing on the product\u2019s flat surfaces. The cutting tools used for processing soft metals such as aluminum\/copper are generally alloy material mills with 3 to 4 flutes. They have a hardness ranging from HRC55 to HRC65. These milling cutting tools are performed using the bottom edge of the tool, and the part surface may develop distinctive fish scale patterns, impacting its overall appearance.\r\n\r\n<strong>Solution<\/strong>: Commonly observed in products with high flatness requirements and flat surfaces featuring recessed structures. A remedy is to switch to cutting tools made from synthetic diamond material, which helps achieve smoother surface finishes.\r\n<h2>Aging and Wear of Equipment Components<\/h2>\r\n<strong>Causes<\/strong>: The tools mark on the product surface is attributed to the aging and wear of the equipment\u2019s spindle, bearings, and lead screw. Additionally, inadequate CNC system backlash parameters contribute to pronounced tool marks, particularly when machining rounded corners.\r\n\r\n<strong>Solution<\/strong>: These issues stem from equipment-related factors and can be addressed by targeted maintenance and replacement.\r\n<h2>Conclusion<\/h2>\r\nAchieving an ideal surface in the \u00a0CNC machining metals\u00a0demands useful approaches. There are different methods to avoid tool marks and lines that involve a combination of equipment maintenance, fixture enhancements, process adjustments, and programming refinements. By understanding and rectifying these factors, manufacturers can ensure that precision components not only meet dimensional criteria but also exhibit the desired aesthetic qualities.\";}"],"themepark_seo_title":[""],"themepark_seo_description":[""],"themepark_seo_keyword":[""],"_thumbnail_id":["5877"],"_autoid":["2"],"_blocktemname":["\u535a\u5ba2\u8be6\u60c5\u6a21\u677f"],"views":["3857"],"themepark_post_hide_title":["1"],"themepark_paddingblock":["1"],"_trp_automatically_translated_slug_pt_PT":["causas-e-solucoes-para-as-marcas-de-ferramentas-na-maquinagem-de-metais"]},"medium_url":"https:\/\/www.washxing.com\/wp-content\/uploads\/2025\/06\/DM_20250604114300_001-300x150.jpg","thumbnail_url":"https:\/\/www.washxing.com\/wp-content\/uploads\/2025\/06\/DM_20250604114300_001-150x150.jpg","full_url":"https:\/\/www.washxing.com\/wp-content\/uploads\/2025\/06\/DM_20250604114300_001.jpg","_links":{"self":[{"href":"https:\/\/www.washxing.com\/pt\/wp-json\/wp\/v2\/posts\/5843","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.washxing.com\/pt\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.washxing.com\/pt\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.washxing.com\/pt\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.washxing.com\/pt\/wp-json\/wp\/v2\/comments?post=5843"}],"version-history":[{"count":1,"href":"https:\/\/www.washxing.com\/pt\/wp-json\/wp\/v2\/posts\/5843\/revisions"}],"predecessor-version":[{"id":5878,"href":"https:\/\/www.washxing.com\/pt\/wp-json\/wp\/v2\/posts\/5843\/revisions\/5878"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.washxing.com\/pt\/wp-json\/wp\/v2\/media\/5877"}],"wp:attachment":[{"href":"https:\/\/www.washxing.com\/pt\/wp-json\/wp\/v2\/media?parent=5843"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.washxing.com\/pt\/wp-json\/wp\/v2\/categories?post=5843"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.washxing.com\/pt\/wp-json\/wp\/v2\/tags?post=5843"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}