×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Jobs

Glass Bead Blasting

Glass Bead Blasting

Glass Bead Blasting

(OP)
I am cleaning die castings via Glass Bead Blasting prior to clear chromate finish. Is there any mil or equivalent specs that I can put on my drawing?

Or simply put Glass Bead Blast


Thanks,

Mark

RE: Glass Bead Blasting

It is important to specify clean glass bead, or at least glass bead that hasn't been used upon any other metal, when bead blasting Al, Zn or SS.
Many shops have one bead blaster dedicated to steel and iron, and another for the whatever metal they use that must be kept clean of embedded Fe.

RE: Glass Bead Blasting

Looked up some specifications:

ASTM B252-92(1998) Standard Guide for Preparation of Zinc Alloy Die Castings for Electroplating and Conversion Coatings.  Paragraph 7.4 discusses shot peening and potential problems thereof (smearing over of porosity).  It refers to MIL-S-13165C for details.  Doesn’t mention glass beads.

B253-87(1999)e1 Standard Guide for Preparation of Aluminum Alloys for Electroplating.  “If aluminum oxide, or glass beads are used, subsequent treatments should include the use of an acid fluoride to ensure that any embedded aluminum oxide or silica is removed.”

MIL-S-13165C SHOT PEENING OF METAL PARTS (S/S BY SAE-AMS-S-13165).  No longer available from the ASSIST site, so $ from www.sae.org

MIL-G-9954A GLASS BEADS, FOR CLEANING AND PEENING (S/S BY SAE-AMS2431).  Still available from ASSIST for free: http://assist1.daps.dla.mil/quicksearch/

MIL-STD-852 GLASS BEAD PEENING PROCEDURES (NO S/S DOCUMENT).  Still available from ASSIST.

Hope this helps,
Ken

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Resources