grinding gray alumina coating(101b-ns)
09-02-2008, 02:45 PM,
grinding gray alumina coating(101b-ns)
I am working on a project were we are grinding alumina on a very narrow edge... the problem is we are getting chipping and cracking in the coating on the edges. Is there a recomended grinding parameter for this? Any ideas would help.

Thank you
09-24-2008, 03:12 PM,
RE: grinding gray alumina coating(101b-ns)
Hi Erick,
We spray 101NS on seal teeth edges which are quiet thin. We machine these on a lathe with a very slight feed, about 0.001" a time and fairly slow chuck speed. Nothing special about the tips, just good quality fellas.
It does chip if you try to rush the cut, let all the dust be removed before advancing further in.

I believe the recommended method is to grind with 30-60 grit wheel for roughing and 60-120 grit for finishing. The wheel should be a medium hard, medium dense vitrified-bond silicon carbide wheel.

09-26-2008, 01:36 PM,
RE: grinding gray alumina coating(101b-ns)

Thank you for the relpy, I will try this method.


Possibly Related Threads…
Thread Author Replies Views Last Post
  Yellow spots on alumina coating powerman 10 7,982 09-26-2020, 02:34 AM
Last Post: DMan
Lightbulb Problem solved Grinding solution for Hastalloy HVOF coating plzc126330 3 2,984 05-28-2019, 01:08 PM
Last Post: velocity
  Grinding questions and my personal information Rage2371 12 4,178 05-25-2019, 10:47 AM
Last Post: velocity
  grinding wheel for stellite 6 hvof coating raviswanadha 8 15,131 12-07-2018, 01:15 AM
Last Post: achmadarifudinh
  Development of High Purity Alumina Albeezy 2 1,476 10-01-2018, 06:54 PM
Last Post: Albeezy
  Dark surface after grinding of plasma tungsten carbide coating Lazha 1 2,575 05-31-2017, 12:07 PM
Last Post: loriolo
  Plasma Spray 60% Alumina- 40% Titania Roughness Hector Monjardin 1 2,407 06-29-2016, 10:42 PM
Last Post: Hector Monjardin
Question Alumina Oxide truk 57 3 4,921 10-18-2013, 11:52 AM
Last Post: Stephen Booth
  Grinding material novakmichal86 0 6,565 10-24-2012, 08:25 AM
Last Post: novakmichal86
  Alumina coating on piston divanis 7 7,725 03-13-2012, 10:59 PM
Last Post: loriolo
  Need help to improve coating Metco 101B-NS Varela 2 6,048 01-11-2012, 12:12 AM
Last Post: Varela
  Diamond grinding problem Met.Eng. 4 6,062 09-14-2011, 09:10 AM
Last Post:
  Diamond Grinding Met.Eng. 5 6,726 10-18-2010, 04:45 AM
Last Post: Stephen Booth
  Alumina coating raviswanadha 2 4,670 07-07-2008, 10:03 AM
Last Post: landemarre

Users browsing this thread: 1 Guest(s)

Surface Engineering Forum Sponsor - Alphatek Hyperformance Coatings Ltd