Process-selection guide. Images and catalog pages are references; confirm the actual part, specification and acceptance limits before choosing a route.

GUIDE-1001 · Equipment, media and sample-trial assessment

Mechanical Finishing for Aerospace Parts: Trial Checklist

Aerospace hardware is usually controlled by a drawing, so a finishing discussion should begin with the actual feature callouts rather than a promise of a bright surface. A machined bracket may need one burr removed while a datum, bore, and mating face stay unchanged.

Decide what this part needs

Separate burr removal, cosmetic blending and a measured surface requirement. Protect fits and reference surfaces before evaluating any media or machine route.

Screen the route before asking for a quotation

Mark every edge that may change and every edge that must retain its drawing condition.
Check whether the part can contact other parts or loose media during the proposed process.
Agree how burr height, edge condition and protected dimensions will be measured on the same sample.

Build a useful sample trial

Use a drawing-controlled representative part. Record incoming burr location, allowed edge change, protected dimensions, appearance reference and inspection method before a trial.

A useful trial record contains the drawing revision, incoming photographs, protected-feature map, media and machine settings, inspection results and any rejected condition. SurfacePolish must confirm a process for the supplied geometry; the catalog is not aerospace qualification evidence.

Know what the reference does not prove

Part-on-part contact, media lodging in bores, and unintended edge rounding need explicit checks; a machine photo does not establish aerospace approval.

Jintaijin polishing and grinding machine, used here as a general equipment reference. — Archive equipment photograph; no aerospace part, production result or qualification is shown.

SurfacePolish catalog page 2, labelled reference for aerospace components — Catalog page 02 · reference only
general equipment only; no aerospace part or qualification shown. Printed performance or compliance claims have not been verified for this application.

Ask the next practical question

Which features cannot be contacted by media, and what measurement will decide whether the first article is acceptable?

Ask whether the deliverable is a machine and media proposal, a representative sample evaluation, or a line concept. Include the drawing owner and acceptance authority in the conversation.

Related SurfacePolish resources

Scope and proof boundary

A search for a metal-polishing service does not confirm a local contract finisher. Ask whether a machine/media proposal or a part-specific process trial is useful; aerospace drawing controls and approvals remain with the buyer.

Discuss a drawing-controlled finishing trial

Send the part material, dimensions, starting condition, target result, quantity and photographs or a drawing. Identify protected features and an acceptance method. This link carries source reference GUIDE-1001; include it in your message if you also want a manual reference.

Open the SurfacePolish enquiry form Email this guide reference

SurfacePolish will confirm whether its equipment, media or sample-review route fits the supplied part. No fixed price or result is promised.