What this category of data includes
Daily documents for metal cutting machining include process routes, operation cards, tool lists, CNC programs, first-piece inspection records, patrol inspection forms, and measuring tool calibration records. Data sources include product drawings and 3D models, CAPP/CAM systems, machine tool collection data, tool management systems, MES systems, and measuring and inspection tool data. Updates are triggered per work order, per workpiece, during spot checks, or when tools are changed. Fields include clamping datum, cutting speed, feed rate, tool life (unit: minutes), process dimension tolerance (unit: millimeters), and additional relevant fields.
Constraints for multi-turn dialogue and prompt engineering
Data for this category originates from multiple dispersed sources, and fields are highly specialized. Multi-turn dialogue must align field definitions across different systems to avoid conflicting with existing process documents. High update frequencies require limiting context to a single work order, to prevent interference from cross-work-order data. Document structures are complex. Prompt engineering must explicitly specify extraction of specific fields from operation cards and tool lists, and verify the rationality of CNC program parameters. Errors have severe consequences. Multi-turn dialogue must retain key decision steps to ensure generated process documents and exception reports meet precision requirements.
Configuration Settings
All configuration settings below are based on FastGPT v4.17.0.
| Configuration Item | Recommended Setting | Rationale |
|---|---|---|
| Maximum context length | 8000–12000 characters | Covers all full document content for a single work order, including process routes, operation cards, tool lists, and related materials |
| Number of retained chat history entries | First 6 entries | Matches typical multi-turn interaction rounds for single work order drafting, retains key decision information |
variables binding rules | Bind current work order tool number, machine tool model | Synchronizes fixed fields from tool management systems and MES, eliminating repeated data entry |
chatId configuration | Bind work order unique ID | Associates all dialogue records and generated files for a single work order, enabling data isolation |
| Generated response timeout threshold | 300 seconds | Adapts to generation duration for complex process documents, preventing mid-generation interruptions |
messages context truncation threshold | Calibrated based on actual testing | Adapts to process documents of varying complexity, preventing context overflow from impacting generation quality |
Three common configuration errors
- Dialogue lacks context memory, generated content does not link to previous round's process parameters. Cause: Incorrect configuration of
messagescontext retention logic, or too low a setting for retained chat history entries. - Extracted process parameters display garbled text. Cause: Failure to bind
variablesencoding format rules, and failure to synchronize original data encoding collected by machine tools. - A large number of embedded iframe sessions cause generation timeouts. Cause: Failure to configure work order isolation via
chatId, leading to context association with excessive cross-work-order data.
How to verify correct configuration
- Initiate a query about first-piece inspection record fields, confirm the model can reference the field content in the follow-up query.
- Import full process documents for a single work order, check that generated process documents include all required fields and units.
- Submit a multi-turn interaction request, confirm that generated exception reports can link to current work order tool wear data.
- View the backend session list, confirm that each session's
chatIdis bound to the corresponding work order number.
The values provided are common starting points and should be measured against the reader's own samples.