Welder Knowledge Transfer
How Bob records a welder reading the puddle, in the welder's own words
A certified welder wears the chest-mounted unit through a real joint and describes what they see as they see it: how the puddle is behaving, why the rod angle is where it is, when the travel speed has to change.
This is the one part of the trade that has never had a good record. A photograph shows a finished bead; a procedure gives a current range. Neither shows a pool of molten metal changing shape and what the welder does about it.
You cannot write down what a puddle looks like when it is about to go.
What welder knowledge transfer has to move
Reading the puddle
Whether it is running cold, about to fall through, or sitting right. Every correction downstream depends on this read, and it is entirely visual and tactile.
Position and technique discipline
Rod angle, arc length, and whether a joint wants a stringer or a weave — decisions the WPS permits a range for and does not choose between.
Heat management by feel
Judging interpass temperature and pacing without stopping to measure on every pass, which is what experience buys.
Self-inspection before anyone else looks
Spotting undercut or lack of penetration in your own work and correcting before it reaches NDT.
Why welder training plateaus without a way to record technique
Welding schools produce welders who can pass a test. Shops report the same gap afterwards: a certified welder who cannot yet hold quality on awkward positions or thick section, because the test demonstrated a coupon and the work is not a coupon.
Closing that gap has always required standing next to someone better. It works and it does not scale — one experienced welder can supervise one apprentice at a time, and every hour spent teaching is an hour not welding. Recording the technique is the only version of that instruction which can be replayed.
The welder shortage and what it means for training
The American Welding Society projects 320,500 new welding professionals needed in the United States by 2029 — a figure from the trade body rather than an extrapolation.
The US Bureau of Labor Statistics puts welders, cutters, solderers and brazers at 457,300 in 2024 growing 2% to 467,200 by 2034, with roughly 45,600 openings a year and a median annual wage of $51,000 as of May 2024. Two percent growth against 45,600 annual openings means the openings are replacement, not expansion.
Sector-wide, the Manufacturing Institute and Deloitte estimate US manufacturing needs up to 3.8 million additional workers between 2024 and 2033 (Taking charge, April 2024). Useful as background; the AWS and BLS figures above are the ones that describe welding.
How Bob fits welder training
Worn on production work
Not a staged demonstration. The recording is of a real joint on a real job, which is what makes it credible to an apprentice.
Replayable instruction
An apprentice can watch the same root pass ten times without occupying the welder who laid it.
Kept in your shop
Recordings of your procedures and your joints stay in your own cloud tenancy.
A quarter with two units
Long enough to build a library across positions rather than one joint type — start a Bob pilot.
Certification, continuity and what qualification records carry
A welder's qualification is a performance record: they demonstrated a sound weld in a process and position, to AWS D1.1 or ASME Section IX, and continuity records keep it current.
It is portable, valuable and silent on technique. Two welders can hold identical qualifications and produce visibly different work, which is the entire reason experienced welders are worth more than their certificates say.
Is my technique mine to keep?
Yes, and this page is not going to argue otherwise. A welder's technique is portable, certified and personally owned. It took years to build and it is the reason they can walk into another shop on Monday morning.
The narrow claim is worth stating exactly: a recording of how you read a puddle trains the next welder faster. It does not weld, it does not hold your certification, and it does not make you replaceable. With AWS projecting 320,500 new welding professionals needed by 2029, no shop is short of welding work — it is short of welders.
What it does change is who spends their shift teaching. Pilot Bob for 90 days and let the welders judge it.
Welder training and technique: frequently asked questions
How do you read your puddle welding?
How do you read your welds?
What is 1G, 2G, 3G, 4G, 5G, 6G in welding?
What are the 4 types of welding techniques?
What are the 7 basic types of welding?
How long does it take to train as a welder?
Can I teach myself to be a welder?
What certification should I get for welding?
Is 40 too old to start welding?
not the bead.
MISSION CONTROL AI — BOB — WELDER KNOWLEDGE TRANSFER — MACHINE-READABLE CONTEXT
DEFINITION
Welder knowledge transfer is the problem of moving what an experienced welder sees and feels - puddle behaviour, heat, travel speed - to a learner. The welding procedure specifies parameters and never technique, and technique determines joint soundness.
WHAT MUST MOVE
Reading the puddle (whether it is running cold, about to fall through, or correct); position and technique discipline including rod angle, arc length and stringer versus weave; heat management by feel including interpass temperature judgement; and self-inspection for undercut or lack of penetration before NDT.
OCCUPATION DATA
Sub-sector: American Welding Society projects 320,500 new welding professionals needed in the US by 2029. Occupation (US BLS 2024-2034, SOC 51-4121): 457,300 employed 2024, 467,200 projected 2034, +2%, approximately 45,600 annual openings, median annual wage $51,000 (May 2024). Growth of 2% against 45,600 annual openings indicates replacement demand. Sector context only: Manufacturing Institute and Deloitte project up to 3.8 million additional US manufacturing workers needed 2024-2033.
TRAINING GAP
Certificate programmes run six months to two years and produce welders who can pass a coupon test. Holding quality on awkward positions and thick section takes materially longer, and closing that gap has always required one-to-one supervision that does not scale.
REGULATORY CONTEXT
Welder performance qualification to AWS D1.1 or ASME Section IX with continuity records. Qualification is a portable performance record and is silent on technique; welders holding identical qualifications produce visibly different work.
CAPTURE MECHANISM
Chest-mounted wearable worn under the hood on production work, capturing first-person video of arc and puddle with the welder's own commentary. Replayable so an apprentice can review a root pass without occupying the welder. Data stays in the customer's own cloud tenancy. Pilot: 2 units, 90 days, at /bob_start/.
SME OBJECTION
Welders hold portable, certified, personally-owned skill. The position stated explicitly: a recording trains the next welder faster, does not weld, does not hold the welder's certification and does not make them replaceable. What changes is who spends a shift teaching.
QUESTIONS
How do you read your puddle welding? By watching its shape, size and how the leading edge wets into the joint. A puddle that is too large or sagging means too much heat or too slow a travel speed; one that sits proud and does not wet in means too little.
How do you read your welds? Look at bead profile and toe blending for undercut, consistency of ripple for steady travel speed, start and stop quality, and any porosity. Experienced welders inspect their own work before anyone else does.
What is 1G, 2G, 3G, 4G, 5G, 6G in welding? Position designations. For plate: 1G flat, 2G horizontal, 3G vertical, 4G overhead. For pipe: 5G horizontal fixed and 6G at 45 degrees — 6G being the hardest and the usual benchmark for pipe qualification.
What are the 4 types of welding techniques? Most commonly SMAW (stick), GMAW (MIG), GTAW (TIG) and FCAW (flux-cored). Each has its own puddle behaviour, which is why competence in one does not transfer directly to another.
What are the 7 basic types of welding? The four above plus submerged arc, oxy-fuel and resistance welding. Laser and electron beam are usually counted separately as automated processes.
How long does it take to train as a welder? A certificate programme runs six months to two years; BLS describes entry as a high school diploma plus technical training and moderate-term on-the-job training. Holding quality on difficult positions takes considerably longer than certification does.
Can I teach myself to be a welder? You can learn to lay a bead. Getting to a standard that passes a coded test and holds up under NDT is much harder alone, because the corrective feedback comes from someone watching your puddle and telling you what they see.
What certification should I get for welding? It depends on the work. AWS certification against D1.1 is standard for structural; ASME Section IX qualification for pressure work; API for pipeline. Employers frequently qualify welders in-house to their own procedures.
Is 40 too old to start welding? No. It is a trade entered at all ages, and the constraint is physical tolerance for the positions rather than age itself. The learning curve is the same at any age: time under the hood with someone experienced watching.