Can you provide a sketch of the joint used to qualify the WPS you already have? I can't picture exactly what you did from the description you provided. As recorded by the PQR, is the P-1 material welded to the P-10H material using Inconel 625 filler metal?
Preheat is the temperature the base metal is heated to before welding can commence. The maximum interpass temperature of the base metal adjacent to the point of weld initiation that welding can continue. If the maximum interpass temperature is higher than that listed by the WPS, welding must be...
It's the old, "What comes first, the chicken or the egg?"
Always have the welding of the test coupon witnessed by someone that understands welding and what is being accomplished. They should be independently verifying what is being done is in accordance with the preliminary WPS. The should also...
The residual stress in the longitudinal direction will be about the same as the yield strength of the weld/base metal.
Is this added detail being added to an existing structure or is this a "new" fabrication?
Question: How can the added member, the 20 mm plate, be subject to fatigue, but not...
The following is taken from AWS D1.1:2020 Structural Welding Code/Steel
"6.16.3 Welder and Welding Operator Qualification Through WPS Qualification: A welder or welding operator may also be qualified by welding a satisfactory WPS qualification test plate, pipe, or tubing that meets the...
The test assembly used to qualify the welding procedure specification can be welded by a welder that was previously qualified or it can be welded by a welder that has never been qualified. Per most American welding standards, the welder that welded a test assembly that passes all the requisite...
ASTM A242 is not a prequalified steel per D1.1 from what I can see. If the steel meets the requirements of ASTM A36, you should be able to weld the reinforcing steel using a low hydrogen electrode or an electrode that deposits meets the low hydrogen requirements. That will not happen if the...
Without knowing the loads/forces being transferred from one member to another, how can one size the welds? Another consideration is the design standard and the allowable unit stresses that are permitted. In the case of AISC/AWS, the allowable shear on the base metal is 0.4(YS), allowable tension...
The root of the groove weld is finished flush and the face of the groove weld is specified as concave. Both, because no method of mechanical finishing is specified, is as welded. The contours are preferences. As noted in one of the other responses, had there been a letter adjacent to the flush...
Sorry, but I'm not sure I understand the question. I have no idea what UPN200 means. Is that a type of base metal? It doesn't appear to specify a shapp because it appears to relate to a structural angle and a structural channel. Are you asking as a designer or as a welder?
As a designer, I...
Take a look through the offerings from ASM, Metals Park, Ohio. Going back some twenty years ago they had a program that allowed one to input the chemistry and it would list several material specifications that had similar composition. As noted, to determine the specific specification requires...
The welding symbol you've included is what I would call a legacy welding symbol, meaning is either from an "old" drawing or someone is using welding symbols from earlier than 1976! Good golly, they are nearly fifty years out of date!
I noticed the symbol references MIL-W-8604. That's a welding...
I'm not sure, but you might want to take a look at the "Farm Code" for a welding project like this. Do an on line search for the Farm Code 2002.
Best regards - Al
Hello ThaiVu;
The applicable clauses in AWS D1.1:2020 are:
Clause 6.10.1 for the visual examination of the completed fillet weld. Paraphrased: no cracks, no unfilled craters, weld size must be at least 5/16-inch (8 mm), weld convexity (profile) in accordance with figure 7.4, undercut no greater...
