Hi all,
I'm looking for guidance to whether a Welder Performance Qualification (WPQ) can be repaired?
I've had a look through AWS D1.1 and ASME IX, and I can't see anywhere this is strictly prohibited.
We have had a welder fail RT on a full penetration BW, due to a single enlarged gas pore...
Hi all,
I'm looking at making up a mock plater / sheet metal work test piece for some of our students, as it's not something they really do as welders.
Does anyone have any designs they can share? Square-to-rounds / duct work / pattern development etc. would be appreciated.
Looking to...
Hi all,
As the title suggests I'm looking into welding 42CrMo4V forgings (approx. 930 MPa SMYS) for an offshore actuator. I've seen to repeatedly referred to as equivalent to AISI 4140 yet the SMYS seem wildly different!
I'm struggling to find any information on this material, particularly...
Hi DVWE,
Apologies, this is for CRO only, with Inconel 625.
The SMYS is that of the base material. For example, would a PQR which was CRO on 8630 75KSI material, be qualified to weld 80KSI material? Note that 8630 is unassigned, though seeing as its *technically* the same grade, would this...
Hello all,
I've reposted this from the materials and metallurgy forum as it's an ASME query.
This is for CRO (Corrosion Resistant Overlay) i.e. cladding of 8630 80KSI components.
Basically, I'm reviewing a welding procedure for a client, which they have welded two separate test pieces. It's...
Hello all,
This is for CRO (Corrosion Resistant Overlay) i.e. cladding of 8630 80KSI components.
Basically, I'm reviewing a welding procedure for a client, which they have welded two separate test pieces. It's the same material grade (8630, which I believe is unassigned under ASME) but one...
Thanks weldstan, certainly looks like that could help!
However, whilst at the very reasonable price of only £275.00, would you happen to know of any online or free resources?
*Note I will still look into getting a copy, it just would be good to have a digital copy or notes I can present.
Hello all,
I'm just wondering if anyone has any useful resources or literature on PWHT they would be able to share?
It's not for anything specific, rather to educate myself and some of the other Engineers I work with.
I've got a pretty good understanding of PWHT and why it's undertaken but...
Morning all,
hokie66 & racookpe1978 I never mentioned shear stress in any of my calcs, however, this is exactly what I'm trying to determine - Not a value for the shear stress, but what actually is the relationship between the shear capacity and shear strength, as now I've been told of another...
Hi there,
I’m looking for help with some shear strength calcs for bolted joints as this isn’t my field of expertise;
I have x 6 M16 BSEN ISO 3506 Class 70 Bolts, each with a shear capacity (Psb) of 48,700N
By my working out, the Shear area (As) per bolt should be 2.0106 x 10 ^-4 m^2
And by...
Just to let everyone know I passed the assignment on super cooling, and thanks to everyone for giving me advice how little or large! It seems its quite a large topic, but very little is known about it at the level I'm studying at.
Cheers Maui, I've had a quick look at that book and it looks...
Hi Everyone!
First time I've posted here, but I'm struggling to find any information regarding the supercooling (also known as superchilling)of metals and castings, particularly the effect on the materials grain structure and how it affects it mechanical properties. I've tried looking looking...
