Recent content by Kinsrow

I'm afraid that I wasn't clear enough trying to explain what I was trying to do. Maybe my comment below will help. Yes, DTM A will sit on granite table. I was going to assign D1 and D2 target dtms like you were saying, but not sure how to assign a seconday datum from these 2 dtm targets in the...

I have an inspection gage that measure height position of a point with relative to a simulated datum line from 2 other points. This simulated datum line becomes a "zero" dimension and dial indicator read the reading at the inspected point. It's hard to explain this, so I attached the picture...

EdStainless, Thank you for your great insight. I scraped off rust dust on top of polyetheline tank. I don't think I'm only dealing with Iron Oxide type of rust, I saw some weird looking film that is rust color. I don't know, maybe I have chloride that is contaminating the surface and lead to...

Ok.. Let's suppose I have good passivation process that yields good Chromium Oxide layer on the SS surface. Let's suppose that I blow iron dust on the surface. Would I get rust? Would this be rust that you can you can remove by wiping it (above passive layer) or is it the one that attacking the...

We use aluminum oxide to sand blasted the parts. In the utopia world, I would think that the a good & controlled sandblasting process yield a good clean & rust free surface. I think the problem is maintaining the Free Iron contamination to the sand blasting system. Therefore passivation should...

What happened when 410SS investment cast surfaces were sand blasted after being chemically passivated? Would the passivation layer (the chromium surfaces) grow back? how long would it take? and would it grow back as good as the original layer that was promoted by chemical passivation. Should the...

Guys, I'm struggling to model the hook ends of the torsion spring. It is a short hook end that is bent 90 degree from the last coil. I'm doing it in Solidworks 2008. Anyone would like to share experience? Thanks

Its glass beads and the purpose is to have the finish look that we wanted. We passivated the parts before going into bead blaster. We are trying to figure out why we have rust in our finished part.

Does bead blast remove/destroy chromiun oxide layer that was produced from passivation process?

I think you answered your own questions there. Your boss probably liked it, but his bosses boss probably didn't like it. If you want to get rewarded, you should ask the CEO of the company of what to write about. If he/she likes it, everyone in the building will like it........

Yes, The ASTM A967 is our standard test, but this take longer than the Spot Check using Copper Sulfate. We also trying to find out if our procesese induce Free Iron into parts. Using Spot check it lot faster. Copper film developed in few seconds. Have you verified the effectiveness of VCI bag...

How effective is predicting the present of "free iron" which will lead to rust by applying Copper Sulfate solution (diluted in water)? Thanks

OK, I can do that too. Do you have any diagram you can share that explain what goes to what? Thanks

Hello, I have a linear slide coupled to an air cylinder. I need to cycle a test sample back and forth for 50,000 cycles using this setup. I was thinking of using timer to tell the air cylinder when to stop I think I'm going to need a valve, a timer, air regulator, air flow control, on/off...

I appologize for my laziness. I'm specifically interested on the yield and ultimate strength. Thanks