finishing of medical devices
for the orthopaedic Industry
Wet blasting is well known within the orthopaedic manufacturing
world as the accepted procedure for surface finishing of prosthetic
components, due to a number of advantages over other finishing
The surface finishing requirement varies with different types
of orthopaedic implants, but generally falls into two categories;
a smooth satin finish, achieved with spherical media, for
removing machining marks, burrs and other surface contamination
without altering the surface definition for cementless
devices; and a rough texturing of the surface, achieved with
angular media, to create an ideal bonding surface for cemented
The Vapormatt Process can be used with different types of
media (abrasive) to create either of the desired outcomes.
Being a wet process, no static build-up occurs on the surface
of the part, which would otherwise hold microscopic particles.
The process is carried out by flow, not impact, so washing
and blasting are simultaneously carried out, but a greater
advantage is the complete absence of media impregnation, leaving
only a nascent clean surface with less need for subsequent
cleaning processes or expensive contamination testing. The
liquid continuously lubricates the cutting edges of the media
ensuring a consistently sharp cutting action and lower media
breakdown rates when using very course cuttings abrasives.
Due to Vapormatts patented slurry pumping system a
range of micro medias can also be exploited, this
is particularly advantageous when dealing with more specialist
materials such as composites and prior to preparation for
vacuum surface coating (PVD).
Explosion risks associated with dry processing of titanium
components are eliminated. This opens up the possibilities
in new applications of utilizing titanium powder as the cutting
medium - so avoiding any possibility of secondary contamination.
Unlimited media choices
- aluminium oxide /
silicon carbide 5#-3000#
- Wet process - no explosion risks
- Clean, reactive bonding surface