{"id":3003,"date":"2025-03-11T15:54:14","date_gmt":"2025-03-11T07:54:14","guid":{"rendered":"https:\/\/chiggofactory.com\/?p=3003"},"modified":"2025-03-11T15:54:19","modified_gmt":"2025-03-11T07:54:19","slug":"3d-printing-vs-cnc-machining","status":"publish","type":"post","link":"https:\/\/chiggofactory.com\/pt\/3d-printing-vs-cnc-machining\/","title":{"rendered":"Impress\u00e3o 3D vs. usinagem CNC: Qual \u00e9 a melhor maneira de fazer sua parte?"},"content":{"rendered":"<!-- wp:paragraph -->\n<p>A impress\u00e3o 3D e a usinagem CNC s\u00e3o duas das mais populares <a href=\"https:\/\/chiggofactory.com\/understanding-the-diverse-manufacturing-processes\/\"> processos de fabrica\u00e7\u00e3o <\/a> Hoje. Ambos os m\u00e9todos dependem de sistemas de controle digital para permitir a produ\u00e7\u00e3o r\u00e1pida de prot\u00f3tipos e s\u00e3o adequados para criar pe\u00e7as precisas e personalizadas de uso final.<\/p>\n<!-- \/wp:paragraph -->\n\n<!-- wp:paragraph -->\n<p>No entanto, eles diferem em quase todos os aspectos - s\u00e3o at\u00e9 concorrentes diretos quando se trata de produzir pe\u00e7as s\u00f3lidas. A maior diferen\u00e7a \u00e9 que um m\u00e9todo constr\u00f3i a camada de pe\u00e7as por camada, enquanto o outro funciona removendo o material. Se voc\u00ea se encontrar em uma encruzilhada escolhendo entre usinagem CNC e impress\u00e3o 3D para seus produtos, continue lendo para saber mais.<\/p>\n<!-- \/wp:paragraph -->\n\n<!-- wp:image {\"id\":3009,\"sizeSlug\":\"large\",\"linkDestination\":\"none\"} -->\n<figure class=\"wp-block-image size-large\"><img src=\"https:\/\/chiggofactory.com\/wp-content\/uploads\/2025\/03\/3D-Printing-vs.-CNC-Machining-illustration-1024x576.jpg\" alt=\"3D Printing vs. CNC Machining illustration\" class=\"wp-image-3009\"><\/figure>\n<!-- \/wp:image -->\n\n<!-- wp:heading -->\n<h2 class=\"wp-block-heading\">O que \u00e9 impress\u00e3o 3D?<\/h2>\n<!-- \/wp:heading -->\n\n<!-- wp:image {\"id\":3010,\"sizeSlug\":\"large\",\"linkDestination\":\"none\"} -->\n<figure class=\"wp-block-image size-large\"><img src=\"https:\/\/chiggofactory.com\/wp-content\/uploads\/2025\/03\/3d-printing-process-1024x649.webp\" alt=\"3d-printing process\" class=\"wp-image-3010\"><\/figure>\n<!-- \/wp:image -->\n\n<!-- wp:paragraph -->\n<p>A impress\u00e3o 3D, tamb\u00e9m conhecida como fabrica\u00e7\u00e3o aditiva, \u00e9 um processo que cria objetos tridimensionais a partir de um modelo digital adicionando camada de material por camada. O processo come\u00e7a com um modelo digital, que pode ser criado usando o software CAD (design auxiliado por computador), obtido de um scanner 3D ou baixado de reposit\u00f3rios online. Em seguida, o modelo \u00e9 importado para o software de corte, que o divide em in\u00fameras camadas transversais bidimensionais que servem como um plano para a impressora. O software de corte converte essas camadas em uma s\u00e9rie de instru\u00e7\u00f5es-geralmente no c\u00f3digo G-que a impressora 3D pode entender. Al\u00e9m disso, se o modelo contiver pe\u00e7as salientes, o software poder\u00e1 gerar estruturas de suporte para garantir a impress\u00e3o adequada. Finalmente, a impressora segue estas instru\u00e7\u00f5es, depositando a camada de material por camada e unindo cada nova camada \u00e0quela embaixo dela, construindo gradualmente o objeto completo.<\/p>\n<!-- \/wp:paragraph -->\n\n<!-- wp:paragraph -->\n<p>Os sistemas de impress\u00e3o 3D come\u00e7aram a entrar no mercado no final dos anos 80, quando Chuck Hull inventou a estereolitografia (SLA), a primeira tecnologia de impress\u00e3o 3D. Com pesquisas em andamento em novos materiais e avan\u00e7os tecnol\u00f3gicos, surgiram mais t\u00e9cnicas de impress\u00e3o 3D. Os tipos comuns hoje incluem:<\/p>\n<!-- \/wp:paragraph -->\n\n<!-- wp:list -->\n<ul class=\"wp-block-list\"><!-- wp:list-item -->\n<li><strong>FDM (modelagem de deposi\u00e7\u00e3o fundida):<\/strong>Works by heating a thermoplastic filament, extruding it through a nozzle, and depositing it layer by layer. FDM is affordable, easy to use, and accessible for users of all skill levels. It supports large prints with the right machine setup and is suitable for architectural models, industrial design, and large-scale prototypes. However, it does not handle overhangs and fine details well and often requires support structures. FDM parts may have visible layer lines and weaker adhesion along the Z-axis, making them prone to delamination under stress.<\/li>\n<!-- \/wp:list-item -->\n\n<!-- wp:list-item -->\n<li><strong>SLA (estereolitografia):<\/strong> Uses ultraviolet light to cure successive layers of liquid photopolymer resin. SLA prints have fewer visible layer lines compared to FDM and can produce ultra-smooth surfaces with fine details, making them popular for jewelry, dental models, and intricate prototypes.<\/li>\n<!-- \/wp:list-item -->\n\n<!-- wp:list-item -->\n<li><strong>DLP (processamento de luz digital):<\/strong>Another resin-based 3D printing method, but instead of a laser, it uses a digital projector to cure an entire layer of resin at once. This makes DLP faster than SLA. DLP parts have sharp edges and crisp details and can be used in similar applications as SLA. However, they may sometimes show visible pixelation and typically have a smaller build area.<\/li>\n<!-- \/wp:list-item -->\n\n<!-- wp:list-item -->\n<li><strong>SLS (sinteriza\u00e7\u00e3o seletiva a laser):<\/strong>Uses a high-powered laser to sinter powdered materials, such as nylon and TPU, layer by layer. The unsintered powder acts as support, enabling interlocking, overhanging and other complex designs that are difficult to produce with other methods. SLS parts have good mechanical strength but tend to have a slightly grainy texture.<\/li>\n<!-- \/wp:list-item -->\n\n<!-- wp:list-item -->\n<li><strong>DMLs (sinteriza\u00e7\u00e3o de laser de metal direto):<\/strong> An extension of SLS, specifically designed for processing metal powders. It partially melts powder particles to fuse them together at a molecular level, resulting in slightly porous parts that may require post-processing, such as hot isostatic pressing, to achieve full density. Unlike SLS, DMLS needs support structures\u2014which must be manually removed after printing\u2014to counteract thermal stress and warping during the process.<\/li>\n<!-- \/wp:list-item -->\n\n<!-- wp:list-item -->\n<li><strong>SLM (derretimento seletivo a laser):<\/strong>Also uses a high-power laser to produce metal parts, but unlike SLS, SLM fully melts the metal powder, creating 100% dense parts with superior mechanical strength, hardness, and durability, even comparable to cast or forged metal components. It works best with pure metals and select alloys. SLM generates higher thermal stress which can lead to warping and cracking. Stronger support structures are required to reduce these stresses.<\/li>\n<!-- \/wp:list-item --><\/ul>\n<!-- \/wp:list -->\n\n<!-- wp:heading -->\n<h2 class=\"wp-block-heading\">O que \u00e9 usinagem CNC?<\/h2>\n<!-- \/wp:heading -->\n\n<!-- wp:image {\"id\":3011,\"sizeSlug\":\"full\",\"linkDestination\":\"none\"} -->\n<figure class=\"wp-block-image size-full\"><img src=\"https:\/\/chiggofactory.com\/wp-content\/uploads\/2025\/03\/CNC-Machining-Process.jpg\" alt=\"CNC Machining Process\" class=\"wp-image-3011\"><\/figure>\n<!-- \/wp:image -->\n\n<!-- wp:paragraph -->\n<p>Enquanto a impress\u00e3o 3D \u00e9 um processo de fabrica\u00e7\u00e3o aditivo de ponta, a usinagem CNC (usinagem num\u00e9rica de controle de computador) representa uma t\u00e9cnica de fabrica\u00e7\u00e3o subtrativa mais tradicional. Emergindo na d\u00e9cada de 1950 dos primeiros sistemas de NC (Controle Num\u00e9rico), a usinagem do CNC evoluiu com a automa\u00e7\u00e3o digital, permitindo a fabrica\u00e7\u00e3o de alta precis\u00e3o entre as ind\u00fastrias.<\/p>\n<!-- \/wp:paragraph -->\n\n<!-- wp:paragraph -->\n<p>Para obter uma pe\u00e7a CNC, voc\u00ea come\u00e7a criando um modelo digital usando o software CAD. Este modelo \u00e9 ent\u00e3o convertido em c\u00f3digo G leg\u00edvel por m\u00e1quina atrav\u00e9s da programa\u00e7\u00e3o do CAM, que especifica os movimentos, velocidades e opera\u00e7\u00f5es precisos. Depois disso, a pe\u00e7a de trabalho \u00e9 montada com seguran\u00e7a na m\u00e1quina CNC e as ferramentas de corte apropriadas s\u00e3o selecionadas e instaladas. A m\u00e1quina CNC segue o c\u00f3digo G: come\u00e7ando com usinagem \u00e1spera para remover o excesso de material e depois passar para a usinagem fina para obter as dimens\u00f5es finais e o acabamento da superf\u00edcie.<\/p>\n<!-- \/wp:paragraph -->\n\n<!-- wp:paragraph -->\n<p>Existem v\u00e1rios tipos comuns de usinagem CNC amplamente utilizada na ind\u00fastria de manufatura:<\/p>\n<!-- \/wp:paragraph -->\n\n<!-- wp:list -->\n<ul class=\"wp-block-list\"><!-- wp:list-item -->\n<li><strong><a href=\"https:\/\/chiggofactory.com\/a-complete-guide-to-cnc-milling\/\">CNC Milling<\/a>: <\/strong>A versatile machining process that uses rotating multi-point cutting tools to remove material from a workpiece. It can create flat surfaces, holes, angled cuts, and cavities with high precision. This process is widely used to manufacture engine components, molds, and structural parts in industries such as aerospace, automotive, and electronics.<\/li>\n<!-- \/wp:list-item -->\n\n<!-- wp:list-item -->\n<li><strong><a href=\"https:\/\/chiggofactory.com\/what-is-cnc-turning\/\">CNC virando<\/a>: <\/strong>Uses a single-point cutting tool to remove material from a rotational workpiece for creating cylindrical or conical shapes. It is highly effective in producing symmetrical parts like shafts, bolts, and bushings. This method is commonly applied in the production of automotive components, hydraulic fittings, and precision mechanical parts.<\/li>\n<!-- \/wp:list-item -->\n\n<!-- wp:list-item -->\n<li><strong><a href=\"https:\/\/chiggofactory.com\/what-is-wire-edm\/\">WEDM (usinagem de descarga el\u00e9trica de arame)<\/a>: <\/strong>A non-contact process that uses a thin, electrically charged wire to cut through conductive materials with extreme precision. It can shape hard materials, intricate geometries and fine details with minimal mechanical stress. WEDM is widely used in tool making, aerospace components, and medical device manufacturing.<\/li>\n<!-- \/wp:list-item --><\/ul>\n<!-- \/wp:list -->\n\n<!-- wp:heading -->\n<h2 class=\"wp-block-heading\">Quando escolher a impress\u00e3o 3D vs. usinagem CNC<\/h2>\n<!-- \/wp:heading -->\n\n<!-- wp:paragraph -->\n<p>Ambas as tecnologias oferecem vantagens exclusivas - a usinagem CNC oferece alta precis\u00e3o e versatilidade do material, enquanto a impress\u00e3o 3D \u00e9 preferida para criar geometrias complexas e prototipagem r\u00e1pida. A escolha entre eles depende de v\u00e1rios fatores, incluindo requisitos de material, complexidade do projeto, velocidade de produ\u00e7\u00e3o e considera\u00e7\u00e3o do or\u00e7amento.<\/p>\n<!-- \/wp:paragraph -->\n\n<!-- wp:heading {\"level\":3} -->\n<h3 class=\"wp-block-heading\">Tabela de refer\u00eancia r\u00e1pida<\/h3>\n<!-- \/wp:heading -->\n\n<!-- wp:paragraph -->\n<p>A tabela de verifica\u00e7\u00e3o r\u00e1pida abaixo fornece uma breve compara\u00e7\u00e3o para ajud\u00e1 -lo a determinar qual processo melhor se adequa \u00e0s suas necessidades ou se uma combina\u00e7\u00e3o de ambos pode produzir resultados ideais.<\/p>\n<!-- \/wp:paragraph -->\n\n<!-- wp:table -->\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td class=\"has-text-align-center\" data-align=\"center\"><strong>Fatores<\/strong><strong><\/strong><\/td><td><strong>Impress\u00e3o 3D<\/strong><strong><\/strong><\/td><td><strong>Usinagem CNC<\/strong><strong><\/strong><\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\"><strong>Sele\u00e7\u00e3o de material<\/strong><strong><\/strong><\/td><td><strong>\u25aa&nbsp;<\/strong>Limited but expending options<br><strong>\u25aa&nbsp;<\/strong>Flexible materials and superalloy<\/td><td><strong>\u25aa<\/strong><strong>&nbsp;<\/strong>Wide range , including metals, plastics, wood, and composites<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\"><strong>Complexidade do design<\/strong><strong><\/strong><\/td><td><strong>\u25aa<\/strong><strong>&nbsp;<\/strong>Can achieve highly complex geometries, including lattice structures and organic shapes<\/td><td><strong>\u25aa&nbsp;<\/strong>Can produce parts with relatively complex features, such as threaded holes, sharp edges, and curves<br><strong>\u25aa&nbsp;<\/strong>Limited by tool accessibility, tool path and type, axis-defined minimum radii, and the need for repositioning during the process<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\"><strong>Precis\u00e3o<\/strong><strong><\/strong><\/td><td><strong>\u25aa<\/strong><strong>&nbsp;<\/strong>Moderate precision, typically \u00b10.1 mm, though high-end printers can achieve tighter tolerances<\/td><td><strong>\u25aa&nbsp;<\/strong>High precision, often \u00b10.005 mm or better, depending on material and machine<br><strong>\u25aa&nbsp;<\/strong>Excellent repeatability<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\"><strong>Acabamento superficial<\/strong><strong><\/strong><\/td><td><strong>\u25aa&nbsp;<\/strong>Requires post-processing (e.g. sanding, painting) for a smooth finish<br><strong>\u25aa&nbsp;<\/strong>Some 3D printing processes produce surfaces that are grained, rough, and stepped, or features that may appear blurred<\/td><td><strong>\u25aa<\/strong><strong>&nbsp;<\/strong>Smooth finish with little to no post-processing (typical 125 Ra finish as&nbsp;machined)<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\"><strong>Tamanho de pe\u00e7a grande<\/strong><strong><\/strong><\/td><td><strong>\u25aa&nbsp;<\/strong>Up to 914 x 610 x 914 mm (e.g. FDM)<br><strong>\u25aa&nbsp;<\/strong>Ideal for smaller prototypes or assemblies<\/td><td><strong>\u25aa&nbsp;<\/strong>Up to 2000 x 800 x1000 mm<br><strong>\u25aa&nbsp;<\/strong>Suitable for industrial housings and&nbsp;large-scale prototypes<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\"><strong>For\u00e7a<\/strong><strong><\/strong><\/td><td><strong>\u25aa&nbsp;<\/strong>In FDM, layer adhesion and print orientation reduce the strength of parts<br><strong>\u25aa&nbsp;<\/strong>Metal 3D printed parts in SLM and DMLS offer strength comparable to or even better than traditionally machined parts, especially when heat-treated or made with specific alloys<\/td><td><strong>\u25aa&nbsp;<\/strong>The internal structure of parts is continuous, and their strength usually remains at 100% of the native material<br><strong>\u25aa&nbsp;<\/strong>Some high-strength alloys may be impossible or difficult to process with extreme precision<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\"><strong>Configurar<\/strong><strong><\/strong><\/td><td><strong>\u25aa<\/strong><strong>&nbsp;<\/strong>Minimal setup,&nbsp;require only a digital file and slicer software<\/td><td><strong>\u25aa&nbsp;<\/strong>Need workpiece fixation, tool selection, and machine calibration<br><strong>\u25aa&nbsp;<\/strong>G-code programming\uff0ctoolpath generation, and potential part repositioning<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\"><strong>Velocidade de constru\u00e7\u00e3o<\/strong><strong><\/strong><\/td><td><strong>\u25aa&nbsp;<\/strong>Low setup time, but build time can take hours<br><strong>\u25aa&nbsp;<\/strong>Quicker for small batches and complex designs<br><strong>\u25aa&nbsp;<\/strong>Ideal for design validation, rapid prototyping, and test fits<\/td><td><strong>\u25aa&nbsp;<\/strong>Can take ages to set up and program, but cutting can be very fast<br><strong>\u25aa&nbsp;<\/strong>Fast for bulk production<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\"><strong>&nbsp;Custo<\/strong><strong><\/strong><\/td><td><strong>\u25aa&nbsp;<\/strong>Cost-effective for small series or custom one-offs<br><strong>\u25aa&nbsp;<\/strong>Slight variations in your product\u2019s size can significantly increase your 3D printing manufacturing costs<\/td><td><strong>\u25aa&nbsp;<\/strong>More economical for high-volume production<br><strong>\u25aa&nbsp;<\/strong>More material waste<\/td><\/tr><\/tbody><\/table><\/figure>\n<!-- \/wp:table -->\n\n<!-- wp:paragraph -->\n<p><\/p>\n<!-- \/wp:paragraph -->\n\n<!-- wp:paragraph -->\n<p>Em seguida, podemos determinar se voc\u00ea deve escolher a usinagem CNC, a impress\u00e3o 3D ou ambos para o seu projeto, fazendo a seguinte s\u00e9rie de perguntas.<\/p>\n<!-- \/wp:paragraph -->\n\n<!-- wp:heading {\"level\":3} -->\n<h3 class=\"wp-block-heading\">Impress\u00e3o 3D vs. usinagem CNC: que material voc\u00ea planeja usar?<\/h3>\n<!-- \/wp:heading -->\n\n<!-- wp:paragraph -->\n<p>A impress\u00e3o 3D e a usinagem de CNC trabalham com metais e pl\u00e1sticos. A usinagem CNC possui uma adaptabilidade material mais ampla. \u00c9 usado principalmente para produzir pe\u00e7as a partir de metal, embora o pl\u00e1stico tenha se tornado cada vez mais popular. Voc\u00ea tamb\u00e9m pode usar o processo CNC para fabricar pe\u00e7as de madeiras, comp\u00f3sitos e at\u00e9 espumas e cera.<\/p>\n<!-- \/wp:paragraph -->\n\n<!-- wp:paragraph -->\n<p><strong> Os materiais CNC mais comuns: <\/strong><\/p>\n<!-- \/wp:paragraph -->\n\n<!-- wp:list -->\n<ul class=\"wp-block-list\"><!-- wp:list-item -->\n<li><strong>Metais:&nbsp;<\/strong><a href=\"https:\/\/chiggofactory.com\/a-comprehensive-guide-to-aluminum-cnc-machining\/\">Alum\u00ednio<\/a>,&nbsp;<a href=\"https:\/\/chiggofactory.com\/a-comprehensive-guide-to-stainless-steel-cnc-machining\/\">A\u00e7o inoxid\u00e1vel<\/a>,&nbsp;Titanium,&nbsp;Brass<\/li>\n<!-- \/wp:list-item -->\n\n<!-- wp:list-item -->\n<li><strong>Plastics:<\/strong>&nbsp;<a href=\"https:\/\/chiggofactory.com\/abs-cnc-machining\/\">Abs<\/a>,&nbsp;Nylon,&nbsp;Polycarbonate,&nbsp;PEEK<\/li>\n<!-- \/wp:list-item --><\/ul>\n<!-- \/wp:list -->\n\n<!-- wp:paragraph -->\n<p>A impress\u00e3o 3D funciona principalmente com termopl\u00e1sticos, resinas e alguns p\u00f3s de metal. No entanto, as pe\u00e7as de metal impressas em 3D n\u00e3o saem da linha barata, embora isso esteja mudando.<\/p>\n<!-- \/wp:paragraph -->\n\n<!-- wp:paragraph -->\n<p><strong> Os materiais de impress\u00e3o 3D comuns: <\/strong><\/p>\n<!-- \/wp:paragraph -->\n\n<!-- wp:list -->\n<ul class=\"wp-block-list\"><!-- wp:list-item -->\n<li><strong>Plastics:<\/strong>&nbsp;Nylon,&nbsp;PLA, ABS, ULTEM,&nbsp;ASA,&nbsp;TPU<\/li>\n<!-- \/wp:list-item -->\n\n<!-- wp:list-item -->\n<li><strong>Metais:<\/strong>&nbsp;Aluminum, Stainless steel, Titanium,&nbsp;Inconel<\/li>\n<!-- \/wp:list-item --><\/ul>\n<!-- \/wp:list -->\n\n<!-- wp:paragraph -->\n<p>Vale a pena notar que materiais muito macios e flex\u00edveis, como TPU e silicone, tendem a se deformar sob for\u00e7as de corte, dificultando a usinagem precisa. Da mesma forma, algumas super -operadoras s\u00e3o desafiadoras para a m\u00e1quina devido \u00e0 sua alta resist\u00eancia, endurecimento do trabalho e resist\u00eancia ao calor. Para esses materiais, a impress\u00e3o 3D pode ser uma escolha melhor.<\/p>\n<!-- \/wp:paragraph -->\n\n<!-- wp:heading {\"level\":3} -->\n<h3 class=\"wp-block-heading\">Impress\u00e3o 3D vs. usinagem CNC: qual \u00e9 melhor para pe\u00e7as complexas?<\/h3>\n<!-- \/wp:heading -->\n\n<!-- wp:paragraph -->\n<p>Embora as m\u00e1quinas de 5 eixos ou mais avan\u00e7adas possam lidar com geometrias muito complexas, ainda pode ser dif\u00edcil (ou mesmo imposs\u00edvel) criar recursos e undercuts ocultos, pois as ferramentas n\u00e3o podem acessar todas as superf\u00edcies da pe\u00e7a. A geometria da pr\u00f3pria ferramenta de corte tamb\u00e9m limita a capacidade de usinar cantos perfeitamente quadrados. Al\u00e9m disso, os acess\u00f3rios ou gabaritos personalizados s\u00e3o frequentemente exigidos, o que pode ser uma limita\u00e7\u00e3o significativa.<\/p>\n<!-- \/wp:paragraph -->\n\n<!-- wp:paragraph -->\n<p>As impressoras 3D eliminam esses desafios de geometria na usinagem do CNC. Eles podem produzir geometrias altamente complexas com relativa facilidade. Embora as estruturas de suporte possam ser necess\u00e1rias para processos como o SLM, o p\u00f3s-processamento adicional n\u00e3o diminui a vasta liberdade e complexidade do design que a impress\u00e3o 3D oferece.<\/p>\n<!-- \/wp:paragraph -->\n\n<!-- wp:heading {\"level\":3} -->\n<h3 class=\"wp-block-heading\">A impress\u00e3o 3D ou a usinagem CNC oferece melhor precis\u00e3o dimensional?<\/h3>\n<!-- \/wp:heading -->\n\n<!-- wp:image {\"id\":3012,\"sizeSlug\":\"full\",\"linkDestination\":\"none\"} -->\n<figure class=\"wp-block-image size-full\"><img src=\"https:\/\/chiggofactory.com\/wp-content\/uploads\/2025\/03\/CNC-parts.jpg\" alt=\"CNC machined parts\" class=\"wp-image-3012\"><\/figure>\n<!-- \/wp:image -->\n\n<!-- wp:paragraph -->\n<p>A impress\u00e3o 3D \u00e9 geralmente menos precisa do que a usinagem CNC devido a fatores como encolhimento do material e as limita\u00e7\u00f5es de resolu\u00e7\u00e3o do processo de impress\u00e3o. Por exemplo, tecnologias precisas de impress\u00e3o 3D como o SLA geralmente alcan\u00e7am toler\u00e2ncias de cerca de \u00b1 0,1 mm em condi\u00e7\u00f5es padr\u00e3o. Por outro lado, as m\u00e1quinas CNC de precis\u00e3o podem manter toler\u00e2ncias t\u00e3o apertadas quanto \u00b1 0,025 mm (0,001 \u2033) ou ainda melhor.<\/p>\n<!-- \/wp:paragraph -->\n\n<!-- wp:paragraph -->\n<p>Quando se trata de impress\u00e3o 3D de repetibilidade-at\u00e9 m\u00e9todos de alta precis\u00e3o como SLA ou DLP-ainda ficam atr\u00e1s da usinagem do CNC. As m\u00e1quinas CNC oferecem consist\u00eancia superior devido \u00e0s suas r\u00edgidas configura\u00e7\u00f5es mec\u00e2nicas, sistemas de controle precisos e \u00e0 uniformidade do processo subtrativo. Por outro lado, a impress\u00e3o 3D \u00e9 mais suscet\u00edvel \u00e0 variabilidade causada pelo encolhimento do material, ades\u00e3o \u00e0 camada e fatores ambientais.<\/p>\n<!-- \/wp:paragraph -->\n\n<!-- wp:heading {\"level\":3} -->\n<h3 class=\"wp-block-heading\">Como o acabamento da superf\u00edcie se compara entre a impress\u00e3o 3D e a usinagem CNC?<\/h3>\n<!-- \/wp:heading -->\n\n<!-- wp:paragraph -->\n<p>Impressoras 3D como o SLA podem produzir pe\u00e7as com camadas finas, lisas e texturizadas, mas a usinagem do CNC, com as ferramentas certas, pode obter superf\u00edcies ainda mais suaves.<\/p>\n<!-- \/wp:paragraph -->\n\n<!-- wp:paragraph -->\n<p>Ambos os m\u00e9todos podem ser aprimorados ainda mais com uma variedade de op\u00e7\u00f5es de acabamento superficial <a href=\"https:\/\/chiggofactory.com\/surface-finishing-service\/\" \"=\"\"> para melhorar as qualidades funcionais e cosm\u00e9ticas das partes. Por exemplo, as pe\u00e7as usinadas do CNC podem ser <\/a><a href=\"https:\/\/chiggofactory.com\/a-detailed-guide-to-aluminum-anodizing\/\"> anodizado <\/a>, coberto em p\u00f3, de mi\u00e7angas e passivadas. Da mesma forma, as op\u00e7\u00f5es de acabamento de superf\u00edcie para pe\u00e7as impressas em 3D incluem <a href=\"https:\/\/chiggofactory.com\/electroplating-guide-how-it-works-types-benefits\/\"> placar <\/a>, explos\u00e3o de contas, polimento e tratamentos t\u00e9rmicos para fortalecer o produto.<\/p>\n<!-- \/wp:paragraph -->\n\n<!-- wp:heading {\"level\":3} -->\n<h3 class=\"wp-block-heading\">Quantas pe\u00e7as voc\u00ea est\u00e1 fabricando e custa uma preocupa\u00e7\u00e3o prim\u00e1ria?<\/h3>\n<!-- \/wp:heading -->\n\n<!-- wp:image {\"id\":3013,\"width\":\"840px\",\"height\":\"auto\",\"sizeSlug\":\"full\",\"linkDestination\":\"none\"} -->\n<figure class=\"wp-block-image size-full is-resized\"><img src=\"https:\/\/chiggofactory.com\/wp-content\/uploads\/2025\/03\/cost-vs-quantity.png\" alt=\"cost-vs-quantity\" class=\"wp-image-3013\" style=\"width:840px;height:auto\"><\/figure>\n<!-- \/wp:image -->\n\n<!-- wp:paragraph -->\n<p>Para pe\u00e7as com geometrias t\u00edpicas (aquelas que podem ser relativamente facilmente alcan\u00e7adas com o CNC), a escolha depende do material e da quantidade de pe\u00e7as.<\/p>\n<!-- \/wp:paragraph -->\n\n<!-- wp:paragraph -->\n<p><strong> Para pe\u00e7as pl\u00e1sticas: <\/strong><\/p>\n<!-- \/wp:paragraph -->\n\n<!-- wp:list -->\n<ul class=\"wp-block-list\"><!-- wp:list-item -->\n<li>Se voc\u00ea estiver produzindo um baixo volume de pe\u00e7as (1 a 10 unidades), a impress\u00e3o 3D \u00e9 a sua melhor op\u00e7\u00e3o devido aos seus requisitos m\u00ednimos de configura\u00e7\u00e3o.<\/li>\n<!-- \/wp:list-item -->\n\n<!-- wp:list-item -->\n<li>Ao lidar com volumes m\u00e9dios (10-100 unidades), a impress\u00e3o 3D ainda \u00e9 uma boa op\u00e7\u00e3o, mas voc\u00ea tamb\u00e9m pode considerar a usinagem CNC.<\/li>\n<!-- \/wp:list-item -->\n\n<!-- wp:list-item -->\n<li>\u00c0 medida que o volume aumenta (100-1000 unidades), a usinagem do CNC se torna mais eficiente devido a custos de configura\u00e7\u00e3o amortizados, e a moldagem por inje\u00e7\u00e3o tamb\u00e9m pode ser uma op\u00e7\u00e3o para determinados projetos.<\/li>\n<!-- \/wp:list-item -->\n\n<!-- wp:list-item -->\n<li>Para volumes muito grandes (mais de 1000 unidades), a moldagem por inje\u00e7\u00e3o normalmente se torna a melhor op\u00e7\u00e3o para pe\u00e7as pl\u00e1sticas, em vez de usar impress\u00e3o 3D ou CNC.<\/li>\n<!-- \/wp:list-item --><\/ul>\n<!-- \/wp:list -->\n\n<!-- wp:paragraph -->\n<p><strong> Para pe\u00e7as de metal <\/strong>, a situa\u00e7\u00e3o \u00e9 bem diferente:<\/p>\n<!-- \/wp:paragraph -->\n\n<!-- wp:list -->\n<ul class=\"wp-block-list\"><!-- wp:list-item -->\n<li>Ao produzir volumes baixos a m\u00e9dios (1-100 unidades), a usinagem CNC \u00e9 frequentemente preferida, pois a impress\u00e3o 3D de metal pode ser bastante cara.<\/li>\n<!-- \/wp:list-item -->\n\n<!-- wp:list-item -->\n<li>Para volumes mais altos (100-1000 unidades), a usinagem do CNC \u00e9 o m\u00e9todo mais comum, mas o elenco de investimento tamb\u00e9m pode ser uma op\u00e7\u00e3o<\/li>\n<!-- \/wp:list-item -->\n\n<!-- wp:list-item -->\n<li>Para grandes volumes (mais de 1000 unidades), o investimento ou o elenco \u00e9 tipicamente a melhor escolha.<\/li>\n<!-- \/wp:list-item --><\/ul>\n<!-- \/wp:list -->\n\n<!-- wp:heading -->\n<h2 class=\"wp-block-heading\">As principais dicas de Chicago para escolher entre impress\u00e3o 3D e usinagem CNC<\/h2>\n<!-- \/wp:heading -->\n\n<!-- wp:paragraph -->\n<p>Selecionar a tecnologia de fabrica\u00e7\u00e3o certa para suas pe\u00e7as personalizadas pode parecer um desafio intranspon\u00edvel, mas n\u00e3o precisa ser. Como sempre dizemos a nossos clientes na Chiggo, n\u00e3o h\u00e1 m\u00e9todo de fabrica\u00e7\u00e3o perfeito e de tamanho \u00fanico. A melhor escolha depende de v\u00e1rios fatores. Para ajudar a orientar sua decis\u00e3o, reunimos algumas regras essenciais de polegar:<\/p>\n<!-- \/wp:paragraph -->\n\n<!-- wp:list -->\n<ul class=\"wp-block-list\"><!-- wp:list-item -->\n<li><strong>Escolha usinagem CNC<\/strong> if you're producing parts in medium to high quantities with relatively simple geometries.<\/li>\n<!-- \/wp:list-item -->\n\n<!-- wp:list-item -->\n<li><strong>Escolha usinagem CNC<\/strong> if precision and durability are key, especially for applications requiring long-term reliability, such as aerospace and medical components.<\/li>\n<!-- \/wp:list-item -->\n\n<!-- wp:list-item -->\n<li><strong>Escolha impress\u00e3o 3D<\/strong> for lower quantities of parts or rapid prototypes, particularly if your designs have complex geometries.<\/li>\n<!-- \/wp:list-item -->\n\n<!-- wp:list-item -->\n<li>When dealing with metal parts, <strong>Usinagem CNC<\/strong>can be price-competitive even for low quantities, but geometry limitations still apply.<\/li>\n<!-- \/wp:list-item --><\/ul>\n<!-- \/wp:list -->\n\n<!-- wp:image {\"id\":3014,\"width\":\"840px\",\"height\":\"auto\",\"sizeSlug\":\"full\",\"linkDestination\":\"none\"} -->\n<figure class=\"wp-block-image size-full is-resized\"><img src=\"https:\/\/chiggofactory.com\/wp-content\/uploads\/2025\/03\/complexity-vs.-quantity.png\" alt=\"complexity vs. quantity\" class=\"wp-image-3014\" style=\"width:840px;height:auto\"><\/figure>\n<!-- \/wp:image -->\n\n<!-- wp:paragraph -->\n<p>Se voc\u00ea ainda n\u00e3o tiver certeza sobre o melhor m\u00e9todo de fabrica\u00e7\u00e3o para sua parte, <a href=\"https:\/\/chiggofactory.com\/contact\/\"> entre em contato com nossos engenheiros <\/a> e envie seu design. O Chiggo \u00e9 um provedor l\u00edder de <a href=\"https:\/\/chiggofactory.com\/cnc-machining\/\"> usinagem cnc <\/a> e os servi\u00e7os de impress\u00e3o 3D na China, com uma equipe experiente aqui para ajud\u00e1-lo!<\/p>\n<!-- \/wp:paragraph -->","protected":false},"excerpt":{"rendered":"<p>A maior diferen\u00e7a entre a impress\u00e3o 3D e a usinagem CNC \u00e9 que um m\u00e9todo constr\u00f3i a camada de pe\u00e7as por camada, enquanto o outro funciona removendo o material. Se voc\u00ea se encontrar em uma encruzilhada escolhendo entre usinagem CNC e impress\u00e3o 3D para seus produtos, continue lendo para saber mais.<\/p>\n","protected":false},"author":2,"featured_media":3008,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false,"footnotes":""},"categories":[15,18],"tags":[],"class_list":["post-3003","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-cnc-machining","category-3d-printing"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.4 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>3D Printing vs. CNC Machining: What Is the Best Way to Make Your Part? - Chiggo<\/title>\n<meta name=\"description\" content=\"Explore the practical differences between CNC machining and 3D printing, and learn how to choose the right method for your prototype or production part.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/chiggofactory.com\/pt\/3d-printing-vs-cnc-machining\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"3D Printing vs. CNC Machining: What Is the Best Way to Make Your Part? 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