Automated Tape Placement (ATP) is a continuous composite manufacturing process where robotic systems lay prepreg fiber tapes onto molds with precision. It transforms high-performance technical textile tapes into structural composites, enabling controlled fiber orientation, superior strength, and lightweight performance for advanced engineering applications.
Step-by-Step Process
- Material Feeding
Prepreg tapes (fiber + resin) are supplied from spools. - Heating
Tape is heated (laser/infrared/hot gas) to soften the resin. - Tape Placement
CNC-controlled robotic head precisely lays tape onto the mold/mandrel. - Compaction
Roller applies pressure to bond layers and eliminate air gaps. - Layer Build-Up
Multiple layers are placed in varying orientations to form the laminate. - Curing / Consolidation
Thermosets are autoclave-cured; thermoplastics may consolidate in-situ.
Material Used
Fibers:
- Carbon fiber (most common)
- Glass fiber
- Aramid (Kevlar)
- Boron fiber
Fabric / Textile Forms:
- Unidirectional (UD) prepreg tapes
- Thermoplastic tapes
- Slit tapes from woven fabrics
- Non-crimp fabrics (NCF)
Advantages
- High automation ensures consistent quality
- Faster production compared to manual methods
- Minimal material waste
- Excellent fiber alignment → superior mechanical properties
- Ideal for large, flat or slightly curved structures
Limitations
- High initial investment and setup cost
- Not suitable for highly complex geometries
- Requires precise tooling
- Needs skilled programming and process control
Applications & End Products
- Aircraft fuselage sections, wing skins, spars
- Pressure vessels and storage tanks
- Composite panels and structural laminates
- Automotive lightweight components
- Wind turbine blade sections
- Marine structural parts
Selection Criteria
ATP is selected when:
- High production rate and automation are required
- Components have large, relatively simple geometries
- Precise fiber orientation and repeatability are critical
- High-performance technical textile composites are needed
- Low material waste and consistent quality are priorities