AI exposure: Structural Metal Fabricators and Fitters
Fabricate, position, align, and fit parts of structural metal products.
Reading this score
computedStructural Metal Fabricators and Fitters is among the least exposed occupations measured, at 7.2% of weighted task load, rank 843 of 923. 88.3% of this job is work current AI systems cannot produce at all. That is not a statement about skill or value. It is a statement about what these systems can and cannot do.
What holds the line here is embodiment. Across this occupation's 23 tasks it averages 2.78 out of 3, the highest of the five friction dimensions. In plain terms, the work has to happen in physical space. A language model cannot move matter. Until the robotics to do this work is both good enough and cheap enough to deploy widely, capability in software does not reach it.
The most exposed thing this job does is Study engineering drawings and blueprints to determine materials requirements and task sequences, at 41.7%. The least is Install boilers, containers, and other structures, at 0.0%. A gap of 41.7% between two parts of the same job is the reason this index publishes at task level. An occupation-wide number would have hidden both.
Within production occupations, this one is less exposed than the median of 16.2% across the group's 107 roles, with 94 scoring higher. Being in an exposed family does not make a particular job exposed, and the reverse holds too.
What would move this score. Of 23 tasks, 2 are currently banded exposed, 1 assisted and 20 untouched. For that distribution to shift materially would take robotics cheap and reliable enough to deploy at scale, not a better language model. The score is re-computed every quarter against a fresh capability reference, and the change is published rather than quietly applied.
Where the score comes from
judgedEvery task is scored through the standardised work activities it maps to. These are this occupation’s averages on the six rubric dimensions. Capability is what AI can do; the other five are what stands in the way.
| Dimension | Mean | Scale |
|---|---|---|
| Capability | 0.48 | 0-4 |
| Embodiment | 2.78 | 0-3 |
| Presence | 0.26 | 0-3 |
| Accountability | 0.59 | 0-3 |
| Context | 0.93 | 0-3 |
| Verification cost | 1.15 | 0-3 |
Task by task
23 tasks, O*NET 31.0| Task | Exposed | Assisted | Untouched | Importance | Band |
|---|---|---|---|---|---|
| Study engineering drawings and blueprints to determine materials requirements and task sequences. | 41.7% | 20.8% | 37.5% | 4.41 | exposed |
| Design and construct templates and fixtures, using hand tools. | 36.7% | 13.3% | 50.0% | 3.78 | exposed |
| Direct welders to build up low spots or short pieces with weld. | 20.0% | 30.0% | 50.0% | 3.67 | assisted |
| Set up and operate fabricating machines, such as brakes, rolls, shears, flame cutters, grinders, and drill presses, to bend, cut, form, punch, drill, or otherwise form and assemble metal components. | 15.0% | 10.0% | 75.0% | 4.13 | untouched |
| Heat-treat parts, using acetylene torches. | 15.0% | 10.0% | 75.0% | 3.55 | untouched |
| Preheat workpieces to make them malleable, using hand torches or furnaces. | 15.0% | 10.0% | 75.0% | 3.45 | untouched |
| Remove high spots and cut bevels, using hand files, portable grinders, and cutting torches. | 8.3% | 4.2% | 87.5% | 3.57 | untouched |
| Lay out and examine metal stock or workpieces to be processed to ensure that specifications are met. | 7.9% | 4.6% | 87.5% | 4.27 | untouched |
| Hammer, chip, and grind workpieces to cut, bend, and straighten metal. | 7.5% | 5.0% | 87.5% | 3.89 | untouched |
| Verify conformance of workpieces to specifications, using squares, rulers, and measuring tapes. | 0.0% | 0.0% | 100.0% | 4.46 | untouched |
| Position, align, fit, and weld parts to form complete units or subunits, following blueprints and layout specifications, and using jigs, welding torches, and hand tools. | 0.0% | 0.0% | 100.0% | 4.39 | untouched |
| Tack-weld fitted parts together. | 0.0% | 0.0% | 100.0% | 4.24 | untouched |
| Move parts into position, manually or with hoists or cranes. | 0.0% | 0.0% | 100.0% | 4.21 | untouched |
| Position or tighten braces, jacks, clamps, ropes, or bolt straps, or bolt parts in position for welding or riveting. | 0.0% | 0.0% | 100.0% | 4.06 | untouched |
| Lift or move materials and finished products, using large cranes. | 0.0% | 0.0% | 100.0% | 4.01 | untouched |
| Set up face blocks, jigs, and fixtures. | 0.0% | 0.0% | 100.0% | 3.99 | untouched |
| Align and fit parts according to specifications, using jacks, turnbuckles, wedges, drift pins, pry bars, and hammers. | 0.0% | 0.0% | 100.0% | 3.91 | untouched |
| Locate and mark workpiece bending and cutting lines, allowing for stock thickness, machine and welding shrinkage, and other component specifications. | 0.0% | 0.0% | 100.0% | 3.70 | untouched |
| Smooth workpiece edges and fix taps, tubes, and valves. | 0.0% | 0.0% | 100.0% | 3.51 | untouched |
| Mark reference points onto floors or face blocks and transpose them to workpieces, using measuring devices, squares, chalk, and soapstone. | 0.0% | 0.0% | 100.0% | 4.09 | untouched |
| Straighten warped or bent parts, using sledges, hand torches, straightening presses, or bulldozers. | 0.0% | 0.0% | 100.0% | 3.53 | untouched |
| Erect ladders and scaffolding to fit together large assemblies. | 0.0% | 0.0% | 100.0% | 3.49 | untouched |
| Install boilers, containers, and other structures. | 0.0% | 0.0% | 100.0% | 2.70 | untouched |
Task text and importance ratings sourced from O*NET 31.0. Shares computed. The occupation score is the importance-weighted mean.
Occupations either side of this one
The four closest scores in the same occupational family, then the four closest anywhere in the index.
Read this carefully. Exposure is not displacement. A high score means current AI systems can produce this work, not that anyone will stop paying a person to do it. Adoption depends on economics, regulation and inertia that this index deliberately does not model. How the score is built.
What this means in practice
Most of this work is not reachable by current systems, so the immediate pressure is on the administrative edges of the role rather than its core: the scheduling, the reporting, the written records. That is where time is recovered.