Hello,
I am looking to see if anyone has seen something similar. This is a brass male nipple and it fractured on assembly as can be seen in the picture attached.
Anyone seen threads fracturing in this manner before?
Happened...
Does anyone know of a lab that conducts MIC testing for Stainless Steels?
I want to test different coatings/alloys and was thinking of LPR/EIS with different Microbes.
Hi all,
I am looking for a high strength dielectric washer (>100ksi yield)
I have a test setup of Inconel to Steel in a Salt Spray chamber.
I am aware of the potential for galvanic action and I am looking for a high strength dielectric. The force between Inconel and Steel will be max ~100ksi...
hi all,
so, I am looking for a digital Xray inspection tool for metals with a resolution of~10 um. Any leads?
Thickness is <3mm and I am looking for gas porosity in welds.
I am in RnD so I would want to get good data ..meaning would like to know the location of the pores etc.
The welds are...
I am looking to hire a consultant on 3D printing Titanium.
Basically from the perspective of safety of powder handling.
Anyone can recommend few leads?
Has anyone had any experience with DMLS?
I am looking into putting quality control procedures for our suppliers and I have following questions noone seems able to answer:
a) How often do you need to change the exhaust filters?
b) How many times can you sieve and recycle the powder?
There is a...
Hello,
I want to melt some phosphor bronze alloy and they requested H04 grade.
It is my first contact with this designation. Is it a heat treatment? If yes would you please recommend a place to find it?
Or does it mean cold work?
Thanks,
HErc
I am looking for NSF 61 approved Adhesive for M grade rubber.
Operating conditions 0 - 100F
Any ideas?
I have found Loctite 480 Prism instant adhesive so far. Any experience with that?
Dear all,
Can anybody recommend a software for floor and process planning for foundry floors?
I am designing a new process and I don't want to do it all on paper. I was hoping there is a sofware that can simulate various things like:
Forklift bringing material from storage to the machine -...
Dear All,
Does anybody have any experience with toolpath automation in Mastercam?
I am using solidworks and my pattern guy says that he has to rebuild the whole model with cutting paths in order to feed the program to the CNC.
This appears to be the bottleneck to the process. Is there any...
Dear all,
I have a large ductile iron casting ~250lbs with a wall thickness of 1 inch in resin bonded sand.
I got shrinkage issues that I can't seem to get rid off.
Chemistry :
C: 3.82
Si: 2.65
Mn .449
S 0.0108
Cu 0.0765
Mg 0.0319
Cr 0.0262
Pour Temp is 2590F.
Nodularity is great.
Any...
Dear all,
How can I determine thickness of elctroZn plating on iron substrate without cutting the piece?
Alcometer is out of the question I guess since Zn is conductive.
Xray? anything else?
Thansk,
Herc.
Dear all,
I really am not sure where to post this question but I thought to start off here:
Does anybody know where I can find used/ refurbished 3D printers?
I am looking for 3D systems Projet 3000 or 3500 or machines of that caliper.
Thanks,
Herc
Ok, before you start throwing ingots at me here is the question in detail:
I have an oven that I routinely anneal carbon steel parts. There is smut all over the inside of it. Guessing Fe and oils from parts that where not ideally cleaned.
Can I burn off the smut with a few high T cycles and...
Dear all,
I have this ductile iron pipe (see pic) that after a few months in service it corroded severily on one end. The pipe was mechanically attached to another pipe with a mechanical joint also made of Ductile iron. So no obvious galvanic cell.
However due to the nature of the mechanical...
Dear all,
Does this look like MIC corrosion? any ideas?
This was closed all the time. Nothing was flowing trough it.
Only at one spot as you can see in pic 1 I see this smooth corroded surface. The medium was water at room temperature.
Herc
Dear all,
I have a ductile iron reduced that was only 5 years in service in a chilled water system.
It appears as erosion/corrosion to me.
There is some Bromine in the water. Service temps were 72F and below.
In Pic 1 it appears as if it was never 100% filled and that's how only half of it...
I am not sure where to post this but I thought that some investment casters might follow this forum.
I am doing a costing exercise on investment casting of some parts.
Question: I know that you can't reuse the investment slurry. But is there anybody out there that might have some use for it...
