What’s 3D printing?
3D printing is any of various processes in which material is joined or solidified under computer control to create a three-dimensional object, with material being added together (such as liquid molecules or powder grains being fused together), typically layer by layer. Today, the precision, repeatability and material range have increased to the point that 3D printing is considered as an industrial production technology, with the name of additive manufacturing.
Relevant Processes
FDM (fused deposition modeling) is a 3D printing process that uses a continuous filament of a thermoplastic material. Filament is fed from a large coil through a moving, heated printer extruder head, and is deposited on the growing work. The print head is moved under computer control to define the printed shape. FDM is now the most popular process (by number of machines) for hobbyist-grade 3D printing. Other techniques such as SLA and SLS may offer better results, but they are much more costly.
Stereolithography, many times referred to as SLA, uses a laser to solidify a photopolymer resin building parts layer by layer. Stereolithography (SLA) is a great choice for complex prototype geometries because of the precision to which it builds and the ability to apply a multitude of finishes. Stereolithography (SLA) is defined as Vat Polymerization and is one of the seven processes defined by ASTM F42. SLA can be used to create things such as prototypes for products in development, medical models, and computer hardware, as well as in many other applications.
Selective laser sintering (SLS) is an additive manufacturing (AM) technique that uses a laser as the power source to sinter powdered material (typically nylon/polyamide[1][2]), aiming the laser automatically at points in space defined by a 3D model, binding the material together to create a solid structure. It is similar to direct metal laser sintering (DMLS); the two are instantiations of the same concept but differ in technical details. Selective laser melting (SLM) uses a comparable concept, but in SLM the material is fully melted rather than sintered,[3] allowing different properties (crystal structure, porosity, and so on). SLS (as well as the other mentioned AM techniques) is a relatively new technology that so far has mainly been used for rapid prototyping and for low-volume production of component parts. Production roles are expanding as the commercialization of AM technology improves.
Typical materials for 3D Printing
Aluminum Alloy
Stainscss Steel
Titanium alloy
The product printed by photopolymer material has fine surface, good toughness, temperature resistance of 50 Celsius degrees, hardness of 79, white color after curing , tensile modulus is 2421-2525Mpa, tensile strength is 40-54Mpa, elongation rate after fracture is 7-10%, and the notched impact strength is 27-37J. Photopolymer is suitable for most hand-made parts.
Common Finish For 3D Printing
Spray Paint
Spray painting is a painting technique where a device sprays a coating (paint, ink, varnish, etc.) through the air onto a surface.
Water Transfer Printing
The water transfer printing technique is a type of printing in which a transfer paper/plastic film with a color pattern is subjected to macromolecular hydrolysis by water pressure. As people's requirements for product packaging and decoration have increased, the use of water transfer has become more widespread. The principle of indirect printing and perfect printing effect solve the problem of surface decoration of many products, mainly used for the transfer of various ceramics, glass paper and the like. The hydrographic process can be used on metal, plastic, glass, hard woods, and various other materials.
Polishing is the process of creating a smooth and shiny surface by rubbing it or using a chemical action, leaving a surface with a significant specular reflection.
Vacuum Plating
Vacuum plating includes several types, such as vacuum evaporation, sputtering and ion plating.They are all used to deposit various metal and non-metal films on the surface of plastic parts by distillation or sputtering under vacuum conditions. In this way, very thin surface coatings can be obtained. It is suitable for functional coatings for high-grade products, household appliances, cosmetic packaging and so on.
Need to know more about 3D printing
Why Choose Xmake’s 3D Printing Services?
Save your money
Cost-competitive printing service with guaranteed quality
Save your time
Instant online quoting and order system
More options
Wide range of materials and post-processing choices
One-to-one customer service
Reliable technical guidance and better communication
Ready to Order Parts?
Quote Today