{"id":9585,"date":"2021-08-24T09:00:00","date_gmt":"2021-08-24T07:00:00","guid":{"rendered":"https:\/\/mizaradditive.com\/7-families-of-additive-manufacturing\/"},"modified":"2021-09-20T11:24:51","modified_gmt":"2021-09-20T09:24:51","slug":"7-families-of-additive-manufacturing","status":"publish","type":"post","link":"https:\/\/mizaradditive.com\/en\/7-families-of-additive-manufacturing\/","title":{"rendered":"7 Families of Additive Manufacturing"},"content":{"rendered":"\n[et_pb_section fb_built=”1″ _builder_version=”4.9.4″ _module_preset=”default” custom_margin=”0px||||false|false” custom_padding=”0px||0px||true|false”][et_pb_row _builder_version=”4.9.4″ _module_preset=”default” width=”100%”][et_pb_column type=”4_4″ _builder_version=”4.9.4″ _module_preset=”default”][et_pb_text _builder_version=”4.9.4″ _module_preset=”default”]

Additive manufacturing is gaining momentum as a process capable of manufacturing highly complex components<\/strong> quickly<\/strong> and directly<\/strong>. <\/span> <\/span><\/p>\n

In previous articles, we have already mentioned some advantages and applications of additive manufacturing and we have also explained how the additive manufacturing process works step by step. <\/span> <\/span><\/p>\n

This time, we will talk about the families<\/strong> in which additive manufacturing (AM) technologies are classified according to the ISO\/ASTM standards<\/strong> and we will mention some of these technologies<\/strong> (encompassed in each family).<\/span> <\/span><\/p>\n

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The main families of additive manufacturing <\/strong><\/span> <\/span><\/h2>\n

According to the above-mentioned standard, the additive manufacturing technologies<\/strong> are grouped into 7 families<\/strong>: <\/span> <\/span><\/p>\n

    \n
  1. Photopolymerization<\/span><\/span><\/li>\n
  2. Material extrusion<\/strong><\/span>.<\/span> <\/span><\/li>\n
  3. Material Jetting<\/strong><\/span> .<\/span> <\/span><\/li>\n
  4. Binder jetting<\/span><\/span><\/li>\n
  5. Powder bed fusion<\/strong><\/span>.<\/span> <\/span><\/li>\n
  6. Direct energy deposition<\/span><\/span><\/li>\n
  7. Sheet lamination <\/span><\/li>\n<\/ol>\n

    At Mizar Additive we are specialists in material extrusion<\/strong>, material injection<\/strong> and powder bed fusion<\/strong>, each with their corresponding technologies. <\/span> <\/span><\/p>\n

    Let’s take a look at the features and technologies of each of these families. <\/span> <\/span><\/p>\n

    <\/span><\/p>\n

    Material Extrusion<\/strong><\/span><\/h2>\n

    Material extrusion consists of depositing the polymer<\/strong> in filament form through the heated nozzle on a moving head. The bed<\/strong> where the object is to be created moves vertically<\/strong> while the nozzle<\/strong> moves horizontally<\/strong>, allowing the molten material to build the object layer by layer. <\/span> <\/span><\/p>\n

    Proper adhesion of the layers<\/strong> is achieved by precise temperature control or the use of chemical bonding agents (industrial glue). <\/span> <\/span><\/p>\n

    In this family, we find the additive process FDM<\/strong> (Fused Deposition Modeling)<\/em>.<\/strong> This is a manufacturing process generally used for prototype modelling<\/strong> and small-scale production<\/strong>, which consists of depositing the material in layers until the part is formed. <\/span> <\/span><\/p>\n

    <\/em><\/span><\/p>\n

    The FDM manufacturing process<\/em><\/span> <\/span><\/h3>\n

    To start the process, the plastic or metal<\/strong> filament is introduced into a nozzle that has previously been collected on a spool. The nozzle is above the melting temperature of the filament material and is driven by stepper or servo motors. Various nozzle, platform and motor combination options are available.<\/span> <\/span><\/p>\n

    The deposition moulding process starts with software, which starts from a stereolithographic file<\/strong> (in .STL format).<\/span> . It is oriented so that it can be printed and divided into layers. If necessary, temporary support structures are created which are removed after the workpiece has been machined. <\/span> <\/span><\/p>\n

    <\/span><\/p>\n

    Material Jetting<\/strong><\/span> <\/span><\/h2>\n

    Material jetting<\/em> or MJ is one of the fastest<\/strong> and most accurate<\/strong> additive technologies This technology is based on the selective deposition<\/strong> of a mixture of photopolymer material in droplets<\/strong> on a platform. <\/span> <\/span><\/p>\n

    This allows single-pass layers to be created<\/strong> for curing and solidification by UV light<\/strong>. In other words, it builds parts using liquid photopolymer droplets that solidify under ultraviolet light.<\/span> <\/span><\/p>\n

    Mizar Additive is a specialist in technology with the same name (Material jetting); below, we explain how the MJ manufacturing process is carried out.<\/span><\/p>\n

    <\/em><\/span><\/p>\n

    The Material Jetting manufacturing process<\/em><\/span> <\/span><\/h3>\n

    In the material jetting technology, the manufacturing process of each layer<\/strong> is divided into two distinct stages<\/strong>:<\/span> <\/span><\/p>\n