{"id":4947,"date":"2024-07-25T05:47:45","date_gmt":"2024-07-25T05:47:45","guid":{"rendered":"https:\/\/3dpmetal.com\/?p=4947"},"modified":"2024-07-25T05:47:49","modified_gmt":"2024-07-25T05:47:49","slug":"laser-based-powder-bed-fusion-202407251","status":"publish","type":"post","link":"https:\/\/3dpmetal.com\/pt\/laser-based-powder-bed-fusion-202407251\/","title":{"rendered":"fus\u00e3o em leito de p\u00f3 com base em laser"},"content":{"rendered":"<p><strong>Fus\u00e3o em leito de p\u00f3 com base em laser: Uma explora\u00e7\u00e3o aprofundada<\/strong><\/p>\n\n\n\n<p><a href=\"https:\/\/3dpmetal.com\/pt\/product\/\">Fus\u00e3o de leito de p\u00f3 com base em laser<\/a> (LPBF) \u00e9 um dos avan\u00e7os mais interessantes no dom\u00ednio do fabrico de aditivos. Permite a cria\u00e7\u00e3o de pe\u00e7as altamente complexas e intrincadas que s\u00e3o dif\u00edceis ou mesmo imposs\u00edveis de obter atrav\u00e9s dos m\u00e9todos de fabrico tradicionais. Este artigo ir\u00e1 aprofundar as especificidades da LPBF, fornecendo uma vis\u00e3o geral abrangente, tabelas detalhadas e conte\u00fados interessantes para o manter informado e entretido.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Vis\u00e3o geral da fus\u00e3o de leito de p\u00f3 com base em laser<\/strong><\/h2>\n\n\n\n<p>A fus\u00e3o em leito de p\u00f3 com base em laser \u00e9 um processo de fabrico aditivo que utiliza um laser de alta pot\u00eancia para fundir p\u00f3s met\u00e1licos finos camada a camada. Esta t\u00e9cnica \u00e9 capaz de produzir pe\u00e7as com elevada precis\u00e3o e excelentes propriedades mec\u00e2nicas, o que a torna muito adequada para ind\u00fastrias como a aeroespacial, a autom\u00f3vel e a dos dispositivos m\u00e9dicos.<\/p>\n\n\n\n<p><strong>Pontos-chave:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Utiliza um laser de alta pot\u00eancia para fundir p\u00f3s met\u00e1licos.<\/li>\n\n\n\n<li>Produz pe\u00e7as complexas e de alta precis\u00e3o.<\/li>\n\n\n\n<li>Utilizado habitualmente nas ind\u00fastrias aeroespacial, autom\u00f3vel e m\u00e9dica.<\/li>\n<\/ul>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"406\" height=\"304\" src=\"https:\/\/3dpmetal.com\/wp-content\/uploads\/2024\/04\/Ti22Al25Nb.jpg\" alt=\"fus\u00e3o em leito de p\u00f3 com base em laser\" class=\"wp-image-4258\" title=\"\" srcset=\"https:\/\/3dpmetal.com\/wp-content\/uploads\/2024\/04\/Ti22Al25Nb.jpg 406w, https:\/\/3dpmetal.com\/wp-content\/uploads\/2024\/04\/Ti22Al25Nb-300x225.jpg 300w, https:\/\/3dpmetal.com\/wp-content\/uploads\/2024\/04\/Ti22Al25Nb-16x12.jpg 16w\" sizes=\"auto, (max-width: 406px) 100vw, 406px\" \/><\/figure>\n<\/div>\n\n\n<h2 class=\"wp-block-heading\"><strong>Tipos, composi\u00e7\u00e3o e propriedades dos p\u00f3s met\u00e1licos na LPBF<\/strong><\/h2>\n\n\n\n<p>Compreender os diferentes tipos de p\u00f3s met\u00e1licos utilizados em LPBF, juntamente com a sua composi\u00e7\u00e3o e propriedades, \u00e9 crucial para selecionar o material certo para a sua aplica\u00e7\u00e3o. Abaixo encontra-se uma tabela detalhada que resume estes aspectos.<\/p>\n\n\n\n<p><strong>Tipos, composi\u00e7\u00e3o e propriedades<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th><strong>P\u00f3 met\u00e1lico<\/strong><\/th><th><strong>Composi\u00e7\u00e3o<\/strong><\/th><th><strong>Propriedades<\/strong><\/th><th><strong>Caracter\u00edsticas<\/strong><\/th><\/tr><\/thead><tbody><tr><td><strong>Tit\u00e2nio (Ti-6Al-4V)<\/strong><\/td><td>Ti, Al, V<\/td><td>Elevada rela\u00e7\u00e3o resist\u00eancia\/peso, resistente \u00e0 corros\u00e3o<\/td><td>Ideal para a ind\u00fastria aeroespacial e implantes m\u00e9dicos<\/td><\/tr><tr><td><strong>A\u00e7o inoxid\u00e1vel (316L)<\/strong><\/td><td>Fe, Cr, Ni, Mo<\/td><td>Alta resist\u00eancia, resistente \u00e0 corros\u00e3o, boa soldabilidade<\/td><td>Utilizado em aplica\u00e7\u00f5es mar\u00edtimas, dispositivos m\u00e9dicos<\/td><\/tr><tr><td><strong>Inconel (718)<\/strong><\/td><td>Ni, Cr, Fe, Nb<\/td><td>Resist\u00eancia a altas temperaturas, boas propriedades mec\u00e2nicas<\/td><td>Adequado para a ind\u00fastria aeroespacial, turbinas a g\u00e1s<\/td><\/tr><tr><td><strong>Alum\u00ednio (AlSi10Mg)<\/strong><\/td><td>Al, Si, Mg<\/td><td>Leve, boa condutividade t\u00e9rmica<\/td><td>Utilizado no sector autom\u00f3vel, aeroespacial<\/td><\/tr><tr><td><strong>Cobalto-cr\u00f3mio (CoCrMo)<\/strong><\/td><td>Co, Cr, Mo<\/td><td>Elevada resist\u00eancia ao desgaste, biocompat\u00edvel<\/td><td>Ideal para implantes dent\u00e1rios e ortop\u00e9dicos<\/td><\/tr><tr><td><strong>A\u00e7o para ferramentas (H13)<\/strong><\/td><td>Fe, Cr, Mo, V<\/td><td>Alta dureza, resistente ao desgaste<\/td><td>Utilizado no fabrico de ferramentas e moldes<\/td><\/tr><tr><td><strong>A\u00e7o Maraging (1.2709)<\/strong><\/td><td>Fe, Ni, Co, Mo<\/td><td>Resist\u00eancia ultra-elevada, boa tenacidade<\/td><td>Adequado para a ind\u00fastria aeroespacial, ferramentas<\/td><\/tr><tr><td><strong>Cobre (Cu)<\/strong><\/td><td>Cu<\/td><td>Excelente condutividade t\u00e9rmica e el\u00e9trica<\/td><td>Utilizado em eletr\u00f3nica, permutadores de calor<\/td><\/tr><tr><td><strong>Liga de n\u00edquel (625)<\/strong><\/td><td>Ni, Cr, Mo, Nb<\/td><td>Resistente \u00e0 corros\u00e3o, alta resist\u00eancia<\/td><td>Ideal para a ind\u00fastria marinha, processamento qu\u00edmico<\/td><\/tr><tr><td><strong>Bronze (CuSn10)<\/strong><\/td><td>Cu, Sn<\/td><td>Alta resist\u00eancia, boa resist\u00eancia ao desgaste<\/td><td>Utilizado em rolamentos, casquilhos<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Aplica\u00e7\u00f5es e utiliza\u00e7\u00f5es dos p\u00f3s met\u00e1licos LPBF<\/strong><\/h2>\n\n\n\n<p>Cada tipo de p\u00f3 met\u00e1lico utilizado na LPBF tem aplica\u00e7\u00f5es e utiliza\u00e7\u00f5es \u00fanicas com base nas suas propriedades e caracter\u00edsticas. Aqui est\u00e1 uma tabela que detalha as aplica\u00e7\u00f5es espec\u00edficas para cada tipo de p\u00f3 met\u00e1lico.<\/p>\n\n\n\n<p><strong>Aplica\u00e7\u00f5es e utiliza\u00e7\u00f5es<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th><strong>P\u00f3 met\u00e1lico<\/strong><\/th><th><strong>APLICA\u00c7\u00d5ES<\/strong><\/th><th><strong>Ind\u00fastria<\/strong><\/th><\/tr><\/thead><tbody><tr><td><strong>Tit\u00e2nio (Ti-6Al-4V)<\/strong><\/td><td>Componentes aeroespaciais, implantes m\u00e9dicos<\/td><td>Aeroespacial, M\u00e9dico<\/td><\/tr><tr><td><strong>A\u00e7o inoxid\u00e1vel (316L)<\/strong><\/td><td>Instrumentos cir\u00fargicos, equipamento mar\u00edtimo<\/td><td>Medicina, Marinha<\/td><\/tr><tr><td><strong>Inconel (718)<\/strong><\/td><td>Componentes de motores a jato, pe\u00e7as de turbinas a g\u00e1s<\/td><td>Aeroespacial, Energia<\/td><\/tr><tr><td><strong>Alum\u00ednio (AlSi10Mg)<\/strong><\/td><td>Pe\u00e7as para autom\u00f3veis, estruturas aeroespaciais<\/td><td>Autom\u00f3vel, Aeroespacial<\/td><\/tr><tr><td><strong>Cobalto-cr\u00f3mio (CoCrMo)<\/strong><\/td><td>Implantes dent\u00e1rios, dispositivos ortop\u00e9dicos<\/td><td>M\u00e9dico, dent\u00e1rio<\/td><\/tr><tr><td><strong>A\u00e7o para ferramentas (H13)<\/strong><\/td><td>Moldes, matrizes, ferramentas de alta temperatura<\/td><td>Fabrico, Ferramentas<\/td><\/tr><tr><td><strong>A\u00e7o Maraging (1.2709)<\/strong><\/td><td>Pe\u00e7as aeroespaciais de alta resist\u00eancia, ferramentas<\/td><td>Aeroespacial, Ferramentas<\/td><\/tr><tr><td><strong>Cobre (Cu)<\/strong><\/td><td>Componentes el\u00e9ctricos, permutadores de calor<\/td><td>Eletr\u00f3nica, Energia<\/td><\/tr><tr><td><strong>Liga de n\u00edquel (625)<\/strong><\/td><td>Pe\u00e7as mar\u00edtimas, componentes de instala\u00e7\u00f5es qu\u00edmicas<\/td><td>Mar\u00edtimo, Qu\u00edmico<\/td><\/tr><tr><td><strong>Bronze (CuSn10)<\/strong><\/td><td>Rolamentos, buchas<\/td><td>Ind\u00fastria, autom\u00f3vel<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Especifica\u00e7\u00f5es, tamanhos, graus e normas<\/strong><\/h2>\n\n\n\n<p>Para aqueles que pretendem implementar a LPBF nos seus processos de fabrico, \u00e9 essencial compreender as especifica\u00e7\u00f5es, tamanhos, graus e normas dos p\u00f3s met\u00e1licos dispon\u00edveis.<\/p>\n\n\n\n<p><strong>Especifica\u00e7\u00f5es, tamanhos, graus e normas<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th><strong>P\u00f3 met\u00e1lico<\/strong><\/th><th><strong>Especifica\u00e7\u00e3o<\/strong><\/th><th><strong>Tamanho (\u03bcm)<\/strong><\/th><th><strong>Grau<\/strong><\/th><th><strong>Padr\u00e3o<\/strong><\/th><\/tr><\/thead><tbody><tr><td><strong>Tit\u00e2nio (Ti-6Al-4V)<\/strong><\/td><td>ASTM F2924<\/td><td>15-45<\/td><td>5\u00aa S\u00e9rie<\/td><td>ASTM, ISO<\/td><\/tr><tr><td><strong>A\u00e7o inoxid\u00e1vel (316L)<\/strong><\/td><td>ASTM A276<\/td><td>15-53<\/td><td>316L<\/td><td>ASTM, ISO<\/td><\/tr><tr><td><strong>Inconel (718)<\/strong><\/td><td>AMS 5662<\/td><td>15-45<\/td><td>718<\/td><td>ASTM, ISO<\/td><\/tr><tr><td><strong>Alum\u00ednio (AlSi10Mg)<\/strong><\/td><td>DIN EN 1706<\/td><td>20-63<\/td><td>AlSi10Mg<\/td><td>ASTM, ISO<\/td><\/tr><tr><td><strong>Cobalto-cr\u00f3mio (CoCrMo)<\/strong><\/td><td>ASTM F75<\/td><td>15-53<\/td><td>CoCrMo<\/td><td>ASTM, ISO<\/td><\/tr><tr><td><strong>A\u00e7o para ferramentas (H13)<\/strong><\/td><td>ASTM A681<\/td><td>20-63<\/td><td>H13<\/td><td>ASTM, ISO<\/td><\/tr><tr><td><strong>A\u00e7o Maraging (1.2709)<\/strong><\/td><td>AMS 6512<\/td><td>15-45<\/td><td>1.2709<\/td><td>ASTM, ISO<\/td><\/tr><tr><td><strong>Cobre (Cu)<\/strong><\/td><td>ASTM B170<\/td><td>20-63<\/td><td>C11000<\/td><td>ASTM, ISO<\/td><\/tr><tr><td><strong>Liga de n\u00edquel (625)<\/strong><\/td><td>ASTM B443<\/td><td>15-45<\/td><td>625<\/td><td>ASTM, ISO<\/td><\/tr><tr><td><strong>Bronze (CuSn10)<\/strong><\/td><td>ASTM B103<\/td><td>20-63<\/td><td>CuSn10<\/td><td>ASTM, ISO<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<figure class=\"wp-block-gallery has-nested-images columns-default is-cropped wp-block-gallery-1 is-layout-flex wp-block-gallery-is-layout-flex\">\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"600\" data-id=\"4260\" src=\"https:\/\/3dpmetal.com\/wp-content\/uploads\/2024\/04\/Ti45Al8Nb.jpg\" alt=\"alum\u00ednio n\u00edquel bronze\" class=\"wp-image-4260\" title=\"\" srcset=\"https:\/\/3dpmetal.com\/wp-content\/uploads\/2024\/04\/Ti45Al8Nb.jpg 800w, https:\/\/3dpmetal.com\/wp-content\/uploads\/2024\/04\/Ti45Al8Nb-300x225.jpg 300w, https:\/\/3dpmetal.com\/wp-content\/uploads\/2024\/04\/Ti45Al8Nb-768x576.jpg 768w, https:\/\/3dpmetal.com\/wp-content\/uploads\/2024\/04\/Ti45Al8Nb-16x12.jpg 16w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"842\" height=\"756\" data-id=\"4259\" src=\"https:\/\/3dpmetal.com\/wp-content\/uploads\/2024\/04\/Ti22Al25Nb-Powder.png\" alt=\"P\u00f3 de liga GRCop-42\" class=\"wp-image-4259\" title=\"\" srcset=\"https:\/\/3dpmetal.com\/wp-content\/uploads\/2024\/04\/Ti22Al25Nb-Powder.png 842w, https:\/\/3dpmetal.com\/wp-content\/uploads\/2024\/04\/Ti22Al25Nb-Powder-300x269.png 300w, https:\/\/3dpmetal.com\/wp-content\/uploads\/2024\/04\/Ti22Al25Nb-Powder-768x690.png 768w, https:\/\/3dpmetal.com\/wp-content\/uploads\/2024\/04\/Ti22Al25Nb-Powder-13x12.png 13w\" sizes=\"auto, (max-width: 842px) 100vw, 842px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"406\" height=\"304\" data-id=\"4258\" src=\"https:\/\/3dpmetal.com\/wp-content\/uploads\/2024\/04\/Ti22Al25Nb.jpg\" alt=\"fus\u00e3o em leito de p\u00f3 com base em laser\" class=\"wp-image-4258\" title=\"\" srcset=\"https:\/\/3dpmetal.com\/wp-content\/uploads\/2024\/04\/Ti22Al25Nb.jpg 406w, https:\/\/3dpmetal.com\/wp-content\/uploads\/2024\/04\/Ti22Al25Nb-300x225.jpg 300w, https:\/\/3dpmetal.com\/wp-content\/uploads\/2024\/04\/Ti22Al25Nb-16x12.jpg 16w\" sizes=\"auto, (max-width: 406px) 100vw, 406px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"600\" data-id=\"4245\" src=\"https:\/\/3dpmetal.com\/wp-content\/uploads\/2024\/04\/S2.jpg\" alt=\"p\u00f3 esferoidizante\" class=\"wp-image-4245\" title=\"\" srcset=\"https:\/\/3dpmetal.com\/wp-content\/uploads\/2024\/04\/S2.jpg 600w, https:\/\/3dpmetal.com\/wp-content\/uploads\/2024\/04\/S2-300x300.jpg 300w, https:\/\/3dpmetal.com\/wp-content\/uploads\/2024\/04\/S2-150x150.jpg 150w, https:\/\/3dpmetal.com\/wp-content\/uploads\/2024\/04\/S2-12x12.jpg 12w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"600\" data-id=\"4243\" src=\"https:\/\/3dpmetal.com\/wp-content\/uploads\/2024\/04\/Pure-aluminum-powder.jpg\" alt=\"Fornecedores de p\u00f3 para impressoras 3D\" class=\"wp-image-4243\" title=\"\" srcset=\"https:\/\/3dpmetal.com\/wp-content\/uploads\/2024\/04\/Pure-aluminum-powder.jpg 600w, https:\/\/3dpmetal.com\/wp-content\/uploads\/2024\/04\/Pure-aluminum-powder-300x300.jpg 300w, https:\/\/3dpmetal.com\/wp-content\/uploads\/2024\/04\/Pure-aluminum-powder-150x150.jpg 150w, https:\/\/3dpmetal.com\/wp-content\/uploads\/2024\/04\/Pure-aluminum-powder-12x12.jpg 12w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"450\" height=\"300\" data-id=\"4242\" src=\"https:\/\/3dpmetal.com\/wp-content\/uploads\/2024\/04\/Pure-Al-Powder.jpg\" alt=\"Deposi\u00e7\u00e3o de metal fundido (MMD)\" class=\"wp-image-4242\" title=\"\" srcset=\"https:\/\/3dpmetal.com\/wp-content\/uploads\/2024\/04\/Pure-Al-Powder.jpg 450w, https:\/\/3dpmetal.com\/wp-content\/uploads\/2024\/04\/Pure-Al-Powder-300x200.jpg 300w, https:\/\/3dpmetal.com\/wp-content\/uploads\/2024\/04\/Pure-Al-Powder-18x12.jpg 18w\" sizes=\"auto, (max-width: 450px) 100vw, 450px\" \/><\/figure>\n<\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Fornecedores e informa\u00e7\u00f5es sobre pre\u00e7os<\/strong><\/h2>\n\n\n\n<p>Encontrar fornecedores fi\u00e1veis e compreender os pre\u00e7os dos p\u00f3s met\u00e1licos LPBF \u00e9 fundamental para a or\u00e7amenta\u00e7\u00e3o e aquisi\u00e7\u00e3o de materiais. Abaixo est\u00e1 uma tabela que descreve alguns dos principais fornecedores e os seus detalhes de pre\u00e7os.<\/p>\n\n\n\n<p><strong>Fornecedores e Precifica\u00e7\u00e3o<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th><strong>P\u00f3 met\u00e1lico<\/strong><\/th><th><strong>Fornecedor<\/strong><\/th><th><strong>Pre\u00e7o (por kg)<\/strong><\/th><th><strong>Notas<\/strong><\/th><\/tr><\/thead><tbody><tr><td><strong>Tit\u00e2nio (Ti-6Al-4V)<\/strong><\/td><td>AP&amp;C<\/td><td>$300<\/td><td>Alta qualidade, grau aeroespacial<\/td><\/tr><tr><td><strong>A\u00e7o inoxid\u00e1vel (316L)<\/strong><\/td><td>Sandvik<\/td><td>$80<\/td><td>Grau m\u00e9dico, resistente \u00e0 corros\u00e3o<\/td><\/tr><tr><td><strong>Inconel (718)<\/strong><\/td><td>Tecnologia Carpinteiro<\/td><td>$200<\/td><td>Aplica\u00e7\u00f5es a altas temperaturas<\/td><\/tr><tr><td><strong>Alum\u00ednio (AlSi10Mg)<\/strong><\/td><td>Equisferas<\/td><td>$60<\/td><td>Leve, de elevada resist\u00eancia<\/td><\/tr><tr><td><strong>Cobalto-cr\u00f3mio (CoCrMo)<\/strong><\/td><td>Praxair<\/td><td>$350<\/td><td>Biocompat\u00edvel, elevada resist\u00eancia ao desgaste<\/td><\/tr><tr><td><strong>A\u00e7o para ferramentas (H13)<\/strong><\/td><td>H\u00f6gan\u00e4s<\/td><td>$100<\/td><td>Dur\u00e1vel, de elevada resist\u00eancia<\/td><\/tr><tr><td><strong>A\u00e7o Maraging (1.2709)<\/strong><\/td><td>Renishaw<\/td><td>$250<\/td><td>Resist\u00eancia ultra-elevada<\/td><\/tr><tr><td><strong>Cobre (Cu)<\/strong><\/td><td>Aditivo GKN<\/td><td>$50<\/td><td>Excelente condutividade<\/td><\/tr><tr><td><strong>Liga de n\u00edquel (625)<\/strong><\/td><td>EOS<\/td><td>$220<\/td><td>Resistente \u00e0 corros\u00e3o, alta resist\u00eancia<\/td><\/tr><tr><td><strong>Bronze (CuSn10)<\/strong><\/td><td>H\u00f6gan\u00e4s<\/td><td>$70<\/td><td>Alta resist\u00eancia, resist\u00eancia ao desgaste<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Pr\u00f3s e contras, vantagens e limita\u00e7\u00f5es da LPBF<\/strong><\/h2>\n\n\n\n<p>Como qualquer tecnologia, a LPBF tem os seus pr\u00f3s e contras. \u00c9 importante ponderar estes factores para determinar se este m\u00e9todo de fabrico \u00e9 adequado \u00e0s suas necessidades espec\u00edficas.<\/p>\n\n\n\n<p><strong>Vantagens e limita\u00e7\u00f5es<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th><strong>P\u00f3 met\u00e1lico<\/strong><\/th><th><strong>Vantagens<\/strong><\/th><th><strong>Limita\u00e7\u00f5es<\/strong><\/th><\/tr><\/thead><tbody><tr><td><strong>Tit\u00e2nio (Ti-6Al-4V)<\/strong><\/td><td>Elevada rela\u00e7\u00e3o resist\u00eancia\/peso, biocompat\u00edvel<\/td><td>Caro, dif\u00edcil de processar<\/td><\/tr><tr><td><strong>A\u00e7o inoxid\u00e1vel (316L)<\/strong><\/td><td>Resistente \u00e0 corros\u00e3o, boa soldabilidade<\/td><td>Menor resist\u00eancia em compara\u00e7\u00e3o com outras ligas<\/td><\/tr><tr><td><strong>Inconel (718)<\/strong><\/td><td>Resist\u00eancia a altas temperaturas, forte<\/td><td>Caro, dif\u00edcil de maquinar<\/td><\/tr><tr><td><strong>Alum\u00ednio (AlSi10Mg)<\/strong><\/td><td>Leve, boa condutividade t\u00e9rmica<\/td><td>Menor resist\u00eancia em compara\u00e7\u00e3o com outros metais<\/td><\/tr><tr><td><strong>Cobalto-cr\u00f3mio (CoCrMo)<\/strong><\/td><td>Elevada resist\u00eancia ao desgaste, biocompat\u00edvel<\/td><td>Caro, ductilidade limitada<\/td><\/tr><tr><td><strong>A\u00e7o para ferramentas (H13)<\/strong><\/td><td>Alta dureza, resistente ao desgaste<\/td><td>Propenso a fissuras sob tens\u00e3o elevada<\/td><\/tr><tr><td><strong>A\u00e7o Maraging (1.2709)<\/strong><\/td><td>Resist\u00eancia ultra-elevada, boa tenacidade<\/td><td>Tratamento t\u00e9rmico dispendioso e complexo<\/td><\/tr><tr><td><strong>Cobre (Cu)<\/strong><\/td><td>Excelente condutividade t\u00e9rmica e el\u00e9trica<\/td><td>Propenso \u00e0 oxida\u00e7\u00e3o, relativamente macio<\/td><\/tr><tr><td><strong>Liga de n\u00edquel (625)<\/strong><\/td><td>Resistente \u00e0 corros\u00e3o, alta resist\u00eancia<\/td><td>Caro, dif\u00edcil de maquinar<\/td><\/tr><tr><td><strong>Bronze (CuSn10)<\/strong><\/td><td>Alta resist\u00eancia, boa resist\u00eancia ao desgaste<\/td><td>Mais pesado, propenso \u00e0 oxida\u00e7\u00e3o<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Compara\u00e7\u00e3o de p\u00f3s met\u00e1licos para LPBF<\/strong><\/h2>\n\n\n\n<p>Para tomar uma decis\u00e3o informada, \u00e9 essencial comparar os diferentes p\u00f3s met\u00e1licos dispon\u00edveis para LPBF. Aqui est\u00e1 uma compara\u00e7\u00e3o detalhada que destaca os principais par\u00e2metros e indicadores de desempenho.<\/p>\n\n\n\n<p><strong>Compara\u00e7\u00e3o de p\u00f3s met\u00e1licos<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>Par\u00e2metros<\/strong><\/td><td><strong>Tit\u00e2nio (Ti-6Al-4V)<\/strong><\/td><td><strong>A\u00e7o inoxid\u00e1vel (316L)<\/strong><\/td><td><strong>Inconel (718)<\/strong><\/td><td><strong>Alum\u00ednio (AlSi10Mg)<\/strong><\/td><td><strong>Cobalto-cr\u00f3mio (CoCrMo)<\/strong><\/td><td><strong>A\u00e7o para ferramentas (H13)<\/strong><\/td><td><strong>A\u00e7o Maraging (1.2709)<\/strong><\/td><td><strong>Cobre (Cu)<\/strong><\/td><td><strong>Liga de n\u00edquel (625)<\/strong><\/td><td><strong>Bronze (CuSn10)<\/strong><\/td><\/tr><tr><td><strong>For\u00e7a<\/strong> <\/td><td>Alto <\/td><td>Moderada <\/td><td>Alto <\/td><td>Moderada <\/td><td>Alto <\/td><td>Alto <\/td><td>Ultra-alto<\/td><td>Moderada <\/td><td>Alto <\/td><td>Moderada <\/td><\/tr><tr><td><strong>Peso<\/strong> <\/td><td>Baixo <\/td><td>Moderada <\/td><td>Alto <\/td><td>Baixo <\/td><td>Alto<\/td><td>Alto <\/td><td>Alto<\/td><td>Moderada <\/td><td>Alto <\/td><td>Alto <\/td><\/tr><tr><td><strong>Resist\u00eancia \u00e0 corros\u00e3o<\/strong><\/td><td>Alto <\/td><td>Alto <\/td><td>Alto <\/td><td>Moderada<\/td><td>Alto <\/td><td>Moderada <\/td><td>Moderada <\/td><td>Baixo <\/td><td>Alto <\/td><td>Moderada<\/td><\/tr><tr><td><strong>Custo<\/strong> <\/td><td>Alto <\/td><td>Moderada <\/td><td>Alto <\/td><td>Baixo <\/td><td>Alto <\/td><td>Moderada <\/td><td>Alto <\/td><td>Baixo <\/td><td>Alto <\/td><td>Moderada <\/td><\/tr><tr><td><strong>Condutividade t\u00e9rmica<\/strong><\/td><td>Moderada <\/td><td>Baixo <\/td><td>Baixo <\/td><td>Alto <\/td><td>Baixo <\/td><td>Baixo <\/td><td>Baixo <\/td><td>Alto <\/td><td>Baixo <\/td><td>Baixo <\/td><\/tr><tr><td><strong>Condutividade El\u00e9trica<\/strong><\/td><td>Baixo <\/td><td>Baixo <\/td><td>Baixo <\/td><td>Moderada <\/td><td>Baixo <\/td><td>Baixo <\/td><td>Baixo <\/td><td>Alto <\/td><td>Baixo <\/td><td>Baixo <\/td><\/tr><tr><td><strong>biocompatibilidade<\/strong> <\/td><td>Alto <\/td><td>Alto <\/td><td>Baixo <\/td><td>Baixo <\/td><td>Alto <\/td><td>Baixo <\/td><td>Baixo <\/td><td>Baixo <\/td><td>Baixo <\/td><td>Baixo <\/td><\/tr><tr><td><strong>Resist\u00eancia ao desgaste<\/strong><\/td><td>Moderada <\/td><td>Moderada <\/td><td>Alto <\/td><td>Baixo <\/td><td>Alto <\/td><td>Alto <\/td><td>Alto <\/td><td>Baixo <\/td><td>Alto <\/td><td>Alto <\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"406\" height=\"304\" src=\"https:\/\/3dpmetal.com\/wp-content\/uploads\/2024\/04\/Ti22Al25Nb.jpg\" alt=\"fus\u00e3o em leito de p\u00f3 com base em laser\" class=\"wp-image-4258\" title=\"\" srcset=\"https:\/\/3dpmetal.com\/wp-content\/uploads\/2024\/04\/Ti22Al25Nb.jpg 406w, https:\/\/3dpmetal.com\/wp-content\/uploads\/2024\/04\/Ti22Al25Nb-300x225.jpg 300w, https:\/\/3dpmetal.com\/wp-content\/uploads\/2024\/04\/Ti22Al25Nb-16x12.jpg 16w\" sizes=\"auto, (max-width: 406px) 100vw, 406px\" \/><\/figure>\n<\/div>\n\n\n<h2 class=\"wp-block-heading\"><strong>Perguntas Frequentes<\/strong><\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th><strong>Quest\u00e3o<\/strong><\/th><th><strong>Resposta<\/strong><\/th><\/tr><\/thead><tbody><tr><td><strong>O que \u00e9 a fus\u00e3o em leito de p\u00f3 com base em laser (LPBF)?<\/strong><\/td><td>O LPBF \u00e9 um processo de fabrico aditivo que utiliza um laser de alta pot\u00eancia para fundir p\u00f3s met\u00e1licos camada a camada, criando pe\u00e7as altamente precisas e complexas.<\/td><\/tr><tr><td><strong>Quais s\u00e3o as vantagens da utiliza\u00e7\u00e3o da LPBF?<\/strong><\/td><td>A LPBF permite a cria\u00e7\u00e3o de desenhos complexos, reduz o desperd\u00edcio de material e pode produzir pe\u00e7as com excelentes propriedades mec\u00e2nicas.<\/td><\/tr><tr><td><strong>Que sectores utilizam habitualmente a LPBF?<\/strong><\/td><td>O LPBF \u00e9 amplamente utilizado nas ind\u00fastrias aeroespacial, autom\u00f3vel, m\u00e9dica e de ferramentas.<\/td><\/tr><tr><td><strong>Que tipos de p\u00f3s met\u00e1licos podem ser utilizados na LPBF?<\/strong><\/td><td>Os p\u00f3s met\u00e1licos comuns incluem o tit\u00e2nio, o a\u00e7o inoxid\u00e1vel, o Inconel, o alum\u00ednio, o cromo-cobalto, o a\u00e7o para ferramentas, o a\u00e7o maraging, o cobre, as ligas de n\u00edquel e o bronze.<\/td><\/tr><tr><td><strong>Quais s\u00e3o as limita\u00e7\u00f5es da LPBF?<\/strong><\/td><td>A LPBF pode ser dispendiosa, alguns materiais s\u00e3o dif\u00edceis de processar e o processo pode ser mais lento em compara\u00e7\u00e3o com os m\u00e9todos de fabrico tradicionais.<\/td><\/tr><tr><td><strong>Como \u00e9 que a LPBF se compara aos m\u00e9todos de fabrico tradicionais?<\/strong><\/td><td>A LPBF permite desenhos mais complexos e precisos, reduz o desperd\u00edcio de material e pode ser mais econ\u00f3mica para pequenas s\u00e9ries de produ\u00e7\u00e3o, mas pode ser mais lenta e mais cara para a produ\u00e7\u00e3o em grande escala.<\/td><\/tr><tr><td><strong>Que factores devem ser considerados ao selecionar um p\u00f3 met\u00e1lico para LPBF?<\/strong><\/td><td>Considerar as propriedades mec\u00e2nicas, o peso, a resist\u00eancia \u00e0 corros\u00e3o, o custo, a condutividade t\u00e9rmica e el\u00e9ctrica, a biocompatibilidade e a resist\u00eancia ao desgaste do p\u00f3 met\u00e1lico.<\/td><\/tr><tr><td><strong>Existem problemas de sa\u00fade e seguran\u00e7a na LPBF?<\/strong><\/td><td>Sim, existem preocupa\u00e7\u00f5es com o manuseamento de p\u00f3s met\u00e1licos, o funcionamento do laser e a garantia de ventila\u00e7\u00e3o e equipamento de prote\u00e7\u00e3o adequados para evitar a inala\u00e7\u00e3o de part\u00edculas finas.<\/td><\/tr><tr><td><strong>Como \u00e9 que as propriedades dos p\u00f3s met\u00e1licos afectam o produto final na LPBF?<\/strong><\/td><td>As propriedades dos p\u00f3s met\u00e1licos, como a for\u00e7a, a resist\u00eancia \u00e0 corros\u00e3o e a condutividade t\u00e9rmica, afectam diretamente o desempenho, a durabilidade e a adequa\u00e7\u00e3o do produto final a aplica\u00e7\u00f5es espec\u00edficas.<\/td><\/tr><tr><td><strong>Quais s\u00e3o alguns passos comuns de p\u00f3s-processamento para pe\u00e7as LPBF?<\/strong><\/td><td>As etapas comuns de p\u00f3s-processamento incluem tratamento t\u00e9rmico, acabamento de superf\u00edcie, maquinagem e inspe\u00e7\u00e3o para garantir que a pe\u00e7a cumpre as especifica\u00e7\u00f5es e normas exigidas.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Conclus\u00e3o<\/strong><\/h2>\n\n\n\n<p><a href=\"https:\/\/3dpmetal.com\/pt\/product\/\">Fus\u00e3o de leito de p\u00f3 com base em laser<\/a> \u00e9 uma tecnologia revolucion\u00e1ria que transformou a forma como pensamos o fabrico. A sua capacidade de criar pe\u00e7as complexas e de alta precis\u00e3o a partir de uma grande variedade de p\u00f3s met\u00e1licos torna-a uma ferramenta inestim\u00e1vel em ind\u00fastrias que v\u00e3o desde a aeroespacial aos dispositivos m\u00e9dicos. Ao compreender os diferentes p\u00f3s met\u00e1licos dispon\u00edveis, as suas propriedades e as suas aplica\u00e7\u00f5es, pode tomar decis\u00f5es informadas para otimizar os seus processos de fabrico.<\/p>\n\n\n\n<p>Com este guia completo, est\u00e1 agora equipado com os conhecimentos necess\u00e1rios para mergulhar mais profundamente no mundo da LPBF, selecionar os materiais certos e aproveitar ao m\u00e1ximo o potencial desta tecnologia. Quer seja um profissional experiente ou um rec\u00e9m-chegado ao fabrico aditivo, a LPBF oferece possibilidades infinitas para inovar e criar.<\/p>\n\n\n\n<p><a href=\"https:\/\/en.wikipedia.org\/wiki\/3D_printing_processes\" target=\"_blank\" rel=\"noreferrer noopener\">saber mais sobre os processos de impress\u00e3o 3D<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>Laser-Based Powder Bed Fusion: An In-Depth Exploration Laser-Based Powder Bed Fusion (LPBF) is one of the most exciting advancements in the realm of additive manufacturing. It allows for the creation of highly complex, intricate parts that are difficult or even impossible to achieve through traditional manufacturing methods. This article will delve deeply into the specifics of LPBF, providing a comprehensive overview, detailed tables, and engaging content to keep you informed and entertained. Overview of Laser-Based Powder Bed Fusion Laser-Based Powder&#8230;<\/p>","protected":false},"author":3,"featured_media":4258,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_kad_blocks_custom_css":"","_kad_blocks_head_custom_js":"","_kad_blocks_body_custom_js":"","_kad_blocks_footer_custom_js":"","_kad_post_transparent":"","_kad_post_title":"","_kad_post_layout":"","_kad_post_sidebar_id":"","_kad_post_content_style":"","_kad_post_vertical_padding":"","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"_kad_post_classname":"","footnotes":""},"categories":[1],"tags":[],"class_list":["post-4947","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized"],"acf":[],"taxonomy_info":{"category":[{"value":1,"label":"Uncategorized"}]},"featured_image_src_large":["https:\/\/3dpmetal.com\/wp-content\/uploads\/2024\/04\/Ti22Al25Nb.jpg",406,304,false],"author_info":{"display_name":"yiyunyingliping","author_link":"https:\/\/3dpmetal.com\/pt\/author\/yiyunyingliping\/"},"comment_info":0,"category_info":[{"term_id":1,"name":"Uncategorized","slug":"uncategorized","term_group":0,"term_taxonomy_id":1,"taxonomy":"category","description":"","parent":0,"count":279,"filter":"raw","cat_ID":1,"category_count":279,"category_description":"","cat_name":"Uncategorized","category_nicename":"uncategorized","category_parent":0}],"tag_info":false,"_links":{"self":[{"href":"https:\/\/3dpmetal.com\/pt\/wp-json\/wp\/v2\/posts\/4947","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/3dpmetal.com\/pt\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/3dpmetal.com\/pt\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/3dpmetal.com\/pt\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/3dpmetal.com\/pt\/wp-json\/wp\/v2\/comments?post=4947"}],"version-history":[{"count":1,"href":"https:\/\/3dpmetal.com\/pt\/wp-json\/wp\/v2\/posts\/4947\/revisions"}],"predecessor-version":[{"id":4948,"href":"https:\/\/3dpmetal.com\/pt\/wp-json\/wp\/v2\/posts\/4947\/revisions\/4948"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/3dpmetal.com\/pt\/wp-json\/wp\/v2\/media\/4258"}],"wp:attachment":[{"href":"https:\/\/3dpmetal.com\/pt\/wp-json\/wp\/v2\/media?parent=4947"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/3dpmetal.com\/pt\/wp-json\/wp\/v2\/categories?post=4947"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/3dpmetal.com\/pt\/wp-json\/wp\/v2\/tags?post=4947"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}