Smokem
Turbler
- Joined
- May 10, 2006
- Messages
- 5,565
Night and day. Not only because of hole size consistency and concentricity, but because with extrude honing you are pushing abrasive paste through the nozzle. This damages the pintle sealing surface. This can cause your nozzle to drip, not have a clean start or stop of injection, or have poor atomization.
This is a bit of a biased over simplification. Extrude honing can produce a quality orifice finish without seat damage, there are many variables that impact the outcome, the type of abrasive compound used, the pressure/cycle time, and the overall amount of honing done in regards to orifice size. The same can be said about EDM, I've seen plenty of poor EDM quality with backwall striking and orifice taper. So it's much more accurate to say you would desire something of quality, no matter the process used.