1
Tow material
Thermoset prepreg, thermoplastic tape or bindered dry fiber qualified for the head.
Process engineering guide · China supplier discovery
Automated Fiber Placement FRP Manufacturers in China
Automated fiber placement (AFP) uses a robot or gantry head to place multiple narrow composite tows along programmed paths on a tool. The head feeds, heats, compacts, cuts and restarts individual tows, enabling steered fiber courses on large or contoured high-performance structures.
automated fiber placement manufacturers in Chinaautomated fiber placement processAFP composite manufacturingrobotic carbon fiber layup
- Deposition
- Programmed tow courses
- Geometry
- Large and contoured
- Materials
- Prepreg, dry or thermoplastic tow
- Control
- Digital path plus sensors
Process principle
How the automated fiber placement process works
Machine motion and tow-level start/stop control translate a digital ply into physical courses. Quality depends on path planning, surface temperature, compaction, tow tension and managing gaps, overlaps and steering limits.
- 01
Program paths
Convert laminate design into collision-checked courses and tow events.
Control: Approve fiber direction, steering, boundaries, gaps, overlaps and drops. - 02
Prepare material & tool
Load qualified tow packages and establish the tool reference surface.
Control: Track material life, tow threading, calibration and tool position. - 03
Heat & place
The head heats the incoming tow and places it along the programmed path.
Control: Control surface/material temperature, speed, tension and head angle. - 04
Compact, cut & restart
A roller consolidates each course while tow units stop and restart at boundaries.
Control: Monitor compaction force and inspect starts, stops, gaps and overlaps. - 05
Verify & cure
Inspect the laid preform, correct permitted anomalies and complete the chosen cure route.
Control: Retain machine data, inspection map, repairs and cure/NDT records.
Material system
What enters the process
2
Digital laminate
Ply boundaries, orientations, steering rules, drops and course order.
3
Placement energy
Infrared, laser or flash heating matched to tack or in-situ consolidation needs.
4
Tool & cure
Mandrel or mold accuracy plus autoclave, oven, infusion or in-situ consolidation route.
Strong process fit
- Large aerospace skins, spars and barrels
- Steered high-performance laminates
- Repeat production where digital traceability matters
Engineering watch-outs
- Programming and capital equipment must be justified by geometry and rate
- Tow-level anomalies require explicit acceptance and repair rules
Buyer audit map
Critical process controls and evidence
A supplier claim is useful only when the process window is tied to the offered material, tooling, drawing revision and production batch.
| Stage | What must be controlled | Evidence to request |
|---|---|---|
| Programming | Path, steering radius, tow add/drop, collision and coverage. | Released program revision and simulation report. |
| Machine setup | Tool registration, head calibration, tow tension and material status. | Calibration and setup checklist. |
| Placement | Speed, heat, compaction and detected gaps/overlaps/tow faults. | Machine log and in-process inspection data. |
| Release | Ply coverage, anomaly disposition, cure and internal quality. | As-built map, repair record, cure chart and NDT. |
Defect diagnosis
Common defects, causes and detection
DEFECT 01
Gaps or overlaps
Likely cause: Path geometry, steering limits, course width or registration error.
Detection: Automated optical inspection and as-built coverage map.
DEFECT 02
Tow twist, fold or missing tow
Likely cause: Feed-path friction, cutter/restart fault or spool tension instability.
Detection: Head sensors, vision inspection and ply-by-ply review.
DEFECT 03
Poor tack or consolidation
Likely cause: Wrong heat, speed, force, surface condition or material temperature.
Detection: Process trace, peel/tack trials and post-cure NDT.
Typical automated fiber placement applications
Aircraft fuselage and wing structures
Launch and space hardware
Pressure-vessel preforms
Large thermoplastic structures
Source transparency
Technical references reviewed
This guide uses the JEC process taxonomy, CAMX/ACMA/SAMPE review framework and process-specific material from industry associations, national research centers or government laboratories. Sources explain the process; they do not endorse listed suppliers.
JEC Composites
About composites and manufacturing technologies
Industry-level process taxonomy covering RTM, infusion, pultrusion, winding, fibre placement and additive manufacturing.
CAMX · ACMA & SAMPE
Manufacturing and processing conference resources
Peer-reviewed conference framework for manufacturing, processing, NDE and testing topics.
National Composites Centre
Automated fibre placement
Tow delivery, programmed courses, in-situ consolidation and heat-source options.
NASA Technical Reports Server
Automated fiber placement composite manufacturing
Technical description of tow control, compaction, steering, start/stop and placement-head functions.
Reviewed 16 August 2026. Verify current standards editions, material datasheets and project-specific acceptance requirements before award.
REAL REVIEWED DATA
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Buyer FAQ
AFP places multiple narrow tows and can steer over tighter contours; automated tape laying uses wider tape and is efficient on flatter or gently curved surfaces. Tool geometry and laminate design drive the choice.
Request program revision, material lots and life history, machine/tool setup, placement parameter log, as-built anomaly map, approved repairs, cure record and final NDT.
Yes. NCC documents prepreg, bindered dry-fiber and thermoplastic placement routes. Heat source, compaction and downstream cure or infusion must be qualified for the specific material.
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