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INDUSTRY FIELD GUIDE

Metal heat-treatment data for AI lot and stage history

Metal heat treating has a defined Census scope.

By Fiund · Updated 2026-11-05

NAICS 332811 · Metal Heat Treating

Metal heat treating has a defined Census scope. An original document exercise can connect input pieces, a recorded process event and the specimens named by later reports. Census heat-treatment scope

Write fictional piece identifiers, a job traveler and inspection reports. Split one incoming job across two recorded events, then return the pieces under a shared customer reference. Ask which report belongs to each subgroup. Include an observation made before the selected event and a later report missing its specimen identifier. The key should preserve the stage and identity gaps.

Annotate piece, subgroup, event reference, observation stage, specimen and document version. Hold out a new job-number convention for evaluation. Score a shared customer reference used as subgroup identity, pre-event results assigned to the later stage and an unknown specimen guessed independently. A complete case should explicitly link the subgroup to its report.

Use self-authored tables and invented values with no thermal schedule or process instruction. Customer designs, licensed methods, proprietary production information and outside reports require authority and qualified review. A licensing brief should define the event-lineage task and checked examples. Confirm buyer requirements before preparing an operating archive or new capture.

Discuss this original manufacturing sample with Fiund

Original Fiund exercise

A hold stays attached to its own stage

Invented traveler events use neutral stage names. No actual heat cycles or engineering information appear.

Fictional records supplied to the evaluator
RecordSourceWhat it records
1TravelerPiece P8 stage A finished at 10:00; stage B logged at 14:00.
2Review recordA review complete at 11:00, explicitly stage A only.
3Later noteStage B evidence requested; none in packet.

Question for the model

What stage status can be shown at 15:00?

Show the reference answer and checks

Show A complete under record 2, with B logged under record 1 and its review evidence missing under record 3. A's completed review does not cover a later stage merely because the piece ID is the same. This is a document status only.

  • Carrying completed status forward across stages
  • Treating a logged stage event as its inspection result

Fields to preserve

piece_id
Groups the history
stage_key
Binds each review to its stage
review_effective_time
Supports as-of status

Test another case

Add a late report entered at 16:00 for stage A; keep the 15:00 snapshot free of that future evidence.

No thermal parameters, materials recommendations, real shop records or release authority.

Download this fictional example and answer key (JSON)

Discuss a contribution

Describe the sources you control, the task they could support and what has already been checked. Use the existing-data assessment for an archive or the collection brief for a new recording project. The contributor agreement defines Fiund’s licensing authority and compensation. A guide or fictional exercise does not establish an accepted collection or a sale.

Primary sources and further reading