Titanium Machined Parts First Article Inspection Guide for Robotics Integrators: the 2026 production season Guide No.1566

The titanium machined parts market in South Korea rewards buyers who issue a complete drawing package, because an incomplete specification is the single biggest cause of quotation delay. Below is a practical, step-by-step view written for Robotics Integrators that want fewer rejects and fewer schedule surprises.

Industry Demand and Buying Cycles

A single rejected lot can stop an assembly line, so titanium machined parts are bought on evidence rather than on price alone. Repeat business in this category goes to the shops that hold tolerance across thousands of pieces, not the ones that win the first quotation. Order volume for titanium machined parts typically peaks in the two quarters before a new equipment launch, so capacity at the better shops is booked out well in advance. Industrial buyers in South Korea usually qualify a supplier once and then scale volume, which means the first small order carries most of the risk.

Tolerances and Machining Process

Confirm the datum scheme before production, because inconsistent datums produce parts that look right and still will not assemble. Ask how the part will be held during machining, because fixture design usually decides whether a tolerance is repeatable. For thin-wall or long parts, agree in advance how distortion will be managed, because that is where capability is really tested. Where a feature is difficult to machine, ask for a design-for-manufacture comment before the order rather than a deviation after it.

Where the Price Actually Comes From

Setup cost is spread across the batch, so a small batch carries a disproportionate share of programming and tooling time. Most quotation gaps come from a different material grade, a different finishing route or a different inspection level, not from shop margin. The price of titanium machined parts breaks into material, machining time, setup, finishing, inspection and margin, and only some of those move with volume. Freight, duty and inland handling can add more than the unit price difference, so compare landed cost rather than ex-works price.

Supplier Selection and Vetting

Ask for two customers already running titanium machined parts programmes and speak to them directly. Request the process plan and the inspection plan before you pay the deposit, so you can see how the part will be made and measured. A supplier that can show recent titanium machined parts inspection reports is a safer partner than one that only shows photographs of finished parts. Look at how the shop stores material and tooling; housekeeping on the floor is a reliable predictor of process discipline.

Surface Finish, Packing and Shipping

Rust prevention is the detail that decides whether a shipment arrives usable, especially for ferrous parts on a humid route. For high-value parts, agree the packing layout so that no two machined surfaces touch in transit. Confirm who arranges the export documents and the certificate of origin, because that task is often assumed by both sides. Cartons for titanium machined parts should be specified with the board grade, the internal packing method and a drop-test requirement.

Certifications and Compliance

Surface treatments and coatings carry their own documentation, so keep the process certificates on file for the programme. Confirm that the test house is accredited and that the report names your material or your part, not a generic specimen. Where the part is safety-related, agree the record retention period before production begins.

Final Checklist

The five controls are simple: revision, first article, inspection, packing and documents. Get them right and you remove most of the risk from a titanium machined parts programme.