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US 2025/0178277 A1Published application
Heat treatment of 3d printed parts
AssigneeCytiva Sweden AB
InventorsJohan Alriksson, Stefan Dargy, Mikael Winestrom
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AssigneeCytiva Sweden AB
InventorsJohan Alriksson, Stefan Dargy, Mikael Winestrom
Estimating the term…
The present invention relates to a device (100) for surface treatment of 3D printed parts for bioprocessing equipment. The device (100) comprises a resurfacing tool (110) comprising a contact surface (116), wherein the contact surface (116) comprises a negative shape of a surface to be treated of a 3D printed part. The device (100) also comprises a heating device (120) operable to heat the resurfacing tool (110) to a temperature above the melting temperature of a material of the 3D printed part. The device (100) also comprises an actuator (130) operable to move the resurfacing tool (110) such that the resurfacing tool (110) can be releasably pressed against the surface to be treated to melt said surface to form a molten layer of said material at said surface. The device (100) further comprises a cooling device operable to cool the resurfacing tool (110) to thereby re-solidify the molten layer of said material at said surface to form a treated surface.
A device (100, 200) for surface treatment of 3D printed parts for bioprocessing equipment, comprising:
The device (100, 200) of any of the preceding claims, wherein the actuator (130, 230) comprises a cylinder (132, 232) comprising a piston (134, 234), wherein the piston (134, 234) is connected to the resurfacing tool (110, 210).
The device (100, 200) of any of the preceding claims, further comprising:
The device (100, 200) of any of the preceding claims, wherein the cooling device comprises a coolant fluid source connected to the resurfacing tool (110, 210).
The device (100, 200) of any of the preceding claims, wherein the resurfacing tool (110, 210) comprises one or more internal fluid channels (113).
The device (100, 200) of any of the preceding claims, wherein a material of the resurfacing tool (110, 210) comprises a metal material comprising one or more of:
The device (100, 200) of any of the preceding claims, wherein at least part of the contact surface (116) of the resurfacing tool (110, 210) has a low value mean surface roughness value Ra (m) that is:
The device (100, 200) of any of the preceding claims, further comprising a securing device (160) operable to secure the 3D printed part to the device (100, 200) during the surface treatment process (400).
The device (100, 200) of any of the preceding claims, wherein the resurfacing tool (110, 210) is configured to engage a valve seat portion of the 3D printed part.
A method (400) for surface treatment of 3D printed parts for bioprocessing equipment, comprising:
A 3D printed part for bioprocessing equipment, comprising at least a partial surface portion thereof having a mean surface roughness value Ra (m) that is:
Dependencies are inferred from the claim text.