Every factory visit begins in a room built for visitors. There is a lit plinth with a welded sample on it, a wall of framed certificates, and a screen running footage of a car on a dyno. None of that is dishonest, but none of it is evidence either. A display piece can be bought, borrowed, or hand-finished by the best person in the building.
The useful part of the visit starts at the door behind that room, where you can see how material arrives and where it goes next. A shop that works well has a visible direction of travel: sheet and tube in at one end, cutting and forming in the middle, welding and finishing downstream, packing at the far end. If you cannot work out that route in a couple of minutes of standing still, the floor is probably being managed from a desk rather than from the floor.
Ask to walk the route in the order the work takes, not the order that shows the shop off. The sequence tells you more than any individual machine.
The single most revealing request on a visit is to follow one live job from its paperwork to its pallet. Not a tour of departments, one order, end to end. You want to see the drawing the floor is actually working from, not the one in the conference room folder, and you want to see whether the person at the bench can answer a question about it without fetching a supervisor.
Watch for the places where the job waits. Every shop has queues, and the location of the queue tells you where the constraint is. If parts pile up before welding, welding is the bottleneck and the schedule is being written around a bench rather than around a delivery date. If they pile up before packing, the shop has capacity and a dispatch problem, which is a much easier conversation.
Also look at what is standing next to the job. Fixtures, gauges and setting sheets that live permanently beside a particular bench suggest repeat work and a stable process. A job that has been walked from one end of the building to the other, borrowing a fixture on the way, is being made for the first time in a way that will not repeat.
Welding is where a fabrication shop either has a system or does not. Look at the bench before anyone tidies it for you. A purged line with a proper dam and a flow indicator, filler rod kept in a labelled tube rather than loose on the table, a brushed and solvent-wiped joint face, and a torch with a clean cup all indicate a shop that understands what titanium and stainless actually need. Loose rod beside a coffee cup says the opposite, whatever the plinth in the front room says.
Ask how the shop decides a joint is ready to weld. The answer should involve cleaning, fit-up and a check, not a shrug. Ask what happens when a weld fails inspection. The answer reveals whether inspection exists at all, or whether the word is being used to mean that it looked fine.
If you are buying titanium work, ask to see the purge setup specifically. Titanium will take oxygen and nitrogen out of the atmosphere while it is hot, and colour is the visible symptom. A straw or light blue tint on a finished bead is normal in much of this work; a dull grey or chalky white surface is not, and it does not come off. A shop that can explain that without prompting has been doing the work.
Consumables are a supply chain question disguised as a housekeeping question. A shop that keeps a documented filler inventory, with heat numbers traceable to the part, can answer a customer question two years after delivery. A shop that buys rod from whoever has stock is not necessarily worse at welding, but it cannot tell you what went into your part.
The same applies to gas. Purging is only as reliable as the supply behind it, and the plumbing between cylinder and torch is where that reliability is usually lost. Look for regulators that are dedicated rather than shared, lines that are not kinked across a walkway, and a habit of checking rather than a sign on the wall.
Every shop claims to inspect. The question is where inspection sits in the organisation. If the person checking the part reports to the person who made it, the check is a formality. If there is a separate bench with a surface plate, a height gauge, callipers and a hardness tester, and parts arrive there without anyone having to ask, you are looking at a process rather than an intention.
Ask what happens to a part that fails. A shop with a real system has a quarantine area and a scrap bin that is not empty. A shop that never scraps anything is either perfect or not measuring.
This matters most for the first article of a new job. The first part off a new setup is where drawing, fixture and operator either agree or do not, and a shop that treats that part as a formal checkpoint will catch the disagreement before it becomes a batch.
Nobody shows a visitor the difficult work. Ask anyway. The job that gave the shop trouble last month, whether it was a thin section that pulled, a flange that would not sit flat or a tank that wept at a baffle, is the best evidence available about how the shop behaves when something goes wrong. The answer tells you whether problems get diagnosed or hidden.
A good answer names the mechanism. Distortion from uneven heat input, a fixture that did not hold the part in the right plane, a joint the torch could not reach at the right angle. A bad answer blames the material, the customer's drawing, or the operator.
Certificates are worth reading carefully. A quality management certificate tells you a system has been audited. It does not tell you the system is applied to your job. A material certificate tells you what the mill supplied, which is the beginning of traceability rather than the end of it. Neither is a substitute for the questions above.
The documents that matter more are the boring ones: a drawing register, a calibration sticker with a readable date, a traveller that follows a part across the floor with initials at each stage. If those exist and are being filled in on the day you visit, the shop is running a system. If they exist and are blank, you are looking at a system that was bought rather than built.
By the end of the walk you should be able to answer a short set of questions without asking anyone again. If you cannot, the visit has done its job by showing you that.
The answers do not need to be impressive. They need to be specific, and they need to match what you saw on the floor.
A factory visit is a snapshot taken on a day the shop knew you were coming. It cannot tell you whether the same discipline holds in a busy month, whether the person who set up your job will still be there next year, or whether the shop's own suppliers are stable. Those questions are answered by ordering, and then by ordering again.
What the visit can do is remove the worst outcomes. You can rule out a shop that does not purge, one that cannot trace material, one with no independent check, and one that has never made the class of part you are asking for. That is a lot for one afternoon.
The rest you learn from the first delivery. If you want to see what comes out of a shop of this kind, our plant and company page describes the building and the team behind it, and the customization process page sets out what we ask for before a job starts. Buyers working through resellers can read the dealership route, while the titanium fabricated components and other fabricated parts pages show the range of shapes involved. Most of the questions above are actually answered at the TIG titanium welding parts bench.
