HP Jet Fusion:
Ultrasint TPU 90A-01
Ultrasint™ TPU 90A-01 was developed by BASF for HP’s Multi Jet Fusion technology. The thermoplastic polyurethane (TPU) is made for production and due to its excellent durability and mechanical properties perfect for end-use parts. Additive manufactured parts made of this material offer high wear resistance, rubber-like elasticity (shore 90A) and a high elongation at break.
380 mm × 284 mm × 380 mm
max. 7 business days
± 0.3 % with a lower limit of 0.3 mm
Material details TPU
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Funktions- und Serienbauteile
Ultrasint™ TPU is an elastic and high wear resistant plastic, which rivals injection molded parts in its mechanical properties. The material is used on our Multi Jet Fusion machines, which enable the production of high resolution (1,200 dpi X/Y and 80 µm Z) and accurate parts.
Typical applications of TPU include:
Shock absorption: Ultrasint™ TPU is perfect to produce lattice structures. Lattice structures can be used for shock absorption, in industrial parts, as well as in consumer products, such as shoe midsoles. The properties of the lattice structure depend on variables such as wall thickness, density and geometry of the lattice structure. This enables to create parts with highly individual shock absorption properties, or even varying properties within one part.
Elastic grippers: TPU manufactured with Multi Jet Fusion machines is perfect for robotic grippers. The technology offers an unlimited potential for individualization of the grippers. Not only the geometry can be adapted, but also the mechanical properties (e.g. adjusting the elasticity by including lattice structure)
Protective housings and covers: Housings that require excellent shock absorption, flexibility and wear resistance are a perfect fit for Multi jet Fusion printed TPU. The cases are very resilient and can be used to protect products even under rough conditions.
Sealings: TPU can be sued for sealings, in particular with a highly customized, 3D geometry.
Complex tubing and air ducts: Due to its elasticity, Ultrasint™ TPU can be used for complex tubing, gaiters and air ducts.
Look & Feel
- The surface is slightly rough.
- TPU is light (density ~1.1 g/cm³).
- The raw print is a non-homogenous grey.
- As in all 3D printing technologies, printing layers (80 microns layer height) may be visible, depending on the part geometry.
- The material is elastic, in particular for thin structures (Shore 90A)
- he material is very resistant, mechanically, thermal and chemically.
- The material is durable and can be used for end-use parts.
X/Y: 9 MPa
Z: 7 MPa
X/Y: 220 %
Z: 120 %
X/Y: 75 MPa
Z: 85 MPa
X/Y: 84 °C
Z: 96 °C
Minimum Wall Thickness
The minimum wall thickness should be no less than 0.8 mm. For long structures or structures which must endure mechanical stress, the wall thickness should be increased.
Hollow parts can be printed, as long as they contain escape holes with a diameter of 10 mm or more, which allow the removal of excess material. For larger cavities two or more escape holes are left.
The material is compacted during the printing process and therefore challenging to remove. Hence, thin tubes integral to the part might end up containing excess material which cannot be removed.
In case your file contains several shells, make sure to keep a clearance gap of min. 0.5 mm between the shells, otherwise they could be fused together.
The minimal details size should be no smaller than 0,3 mm.
Interlocking parts can be printed; a distance of min. 0.5 mm must be allowed between the objects. Make sure that this area can be accessed in order to remove excess powder.
The maximum size of the part cannot exceed 380 x 280 × 380 mm.
- Glass bead blasting
For details of the 3D printing process, please visit our technology page HP Jet Fusion.
A thin layer (80 microns) of powder is spread on a retractable build platform. A print head ejects tiny drops of ‘fusing agent’, a heat-conductive liquid, onto selected areas. The powder is then exposed to a heat lamp. The areas covered with the fusing agent absorb energy from the heat lamp and reach a temperature at which the powder melts. Once the heat source is removed, the (now liquid) powder cools down and solidifies.
A second agent, the detailing agent, is ejected simultaneously with the fusing agent and covers the areas which are not required for the model. The detailing agent is an isolating liquid. It ensures that the powder around the model does not absorb sufficient energy to melt.
The process repeats until all layers are solidified. After printing, the entire build chamber is left to cool down for several hours. Once the target temperature is reached, the parts are removed and cleaned from excess powder.