The potential of UHP and waterjets for additive manufacturing
Additive manufacturing (AM) is the fastest growing manufacturing technology today with significant funds being spent on many of its aspects worldwide. However, parts made by AM may still need post processing to enhance their characteristics such as density or surface attributes. This papers focus...
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| Format: | Conference or Workshop Item |
| Language: | English |
| Published: |
2018
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/88643 http://hdl.handle.net/10220/45983 |
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| Institution: | Nanyang Technological University |
| Language: | English |
| Summary: | Additive manufacturing (AM) is the fastest growing manufacturing technology
today with significant funds being spent on many of its aspects worldwide. However, parts made
by AM may still need post processing to enhance their characteristics such as density or surface
attributes. This papers focuses on metallic parts made by AM and mostly on post processing.
While WJ and AWJ are subtractive processes, they can potentially complement AM with several
post processing operations such as peening, surface finishing, cleaning, and surface texturing.
Also, UHP used to create WJs may be used for densification of AM parts. It was found that cold
isostatic pressing (CIP) at pressures of 650 MPa results in almost full densification of copperbased
metals made by AM. This has a significant advantage in eliminating the heating process for
many metallic parts. However, higher temperatures may still be needed for densification of harder
metals which is an area under investigation. The use of waterjets and cavitation for peening has
been demonstrated on many metallic materials such as Titanium and Aluminum. Texturing for
adhesive bonding using plain waterjets proved to be more advantageous than grit blasting. |
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