Direct Z-pin Insertion
PSI has partnered with KPV to locally reinforce phenolic and epoxy CMC preforms with z-directional pins
Capability Description:
Direct Z-Pin insertion (DZI) Increases shear strength properties in C/SiC’s at a fraction of the cost compared to existing alternatives such as 3D weaving. Pins are inserted where desired to an organic laminate prior to curing. The preform is cured & processed with the pins, fully integrating them to the structure of the composite.
Key Features:
- Significant increase in interlaminar properties
- Negligible decrease in in-plane properties
- Minimizes delamination
- Direct Insertion allows for reinforcement in only areas of need
Benefit to Customer
- Locally reinforce areas that need higher 3D properties.
- Ability to locally reinforce is extremely cost effective compared to existing options
- Negligible in plane strength reduction
- Minimal time/cost added
Carbon Fiber pins inserted Normal to laminate surface