Blade Application Guides / Application Guide / Aerospace composites
Carbon Non-Crimp Fabric Cut To Size Blades
A carbon NCF blank must keep its specified fiber-axis orientation as well as its dimensions. Number consecutive blanks and mark the physical feed datum, stitch direction and cut ends. Compare actual advance with released length, squareness and whether stitches or tows pull free during pickup.
Updated
Where This Cutting Application Appears
Supplied material and orientation
Confirm the supplied carbon NCF architecture, fiber axes, stitch construction, ply count, width and incoming edge. It is a stitched reinforcement fabric, not an already cured laminate or honeycomb core.
Installed cutting setup
Record supplied roll or sheet state, indexing datum, hold-down across all plies and the installed cross-cut motion.
Output and downstream handling
Measure released blanks and inspect cross-cut stitch ends, ply alignment and orientation after one defined transfer.
Cut To Size process boundary
This guide covers cut to size of carbon non-crimp fabric; it does not establish a universal blade format, machine setting or material performance claim.
Cut To Size setup checkpoint
Mark fiber axes and stitch lines on each trial sample. Separate incoming stitch or tow damage from damage first observed at the cutter and after fabric handling.
Cut To Size acceptance checkpoint
Compare direction-marked good and rejected material under the same measurement and handling sequence.
Define the Required Cut Result
- Meet approved blank dimensions after release
- Hold required fiber-axis orientation
- Limit loose tow and stitch ends at cross-cuts
- Keep stacked plies aligned during transfer
Problems to Diagnose Before Changing the Knife
Length varies while edge appearance is steady
Compare physical feed travel, clamp slip and relaxed measurement.
Only the exit side loses stitches
Inspect bottom support and end-of-stroke contact across the ply stack.
Blanks skew after pickup
Compare on-fixture and post-transfer diagonals and fiber-axis marks.
Incoming material differs from the trial lot
Check the supplied grade, construction and incoming defects before attributing a changed result to the cutter.
Carbon NCF Cut To Size Diagnostic
Separate incoming construction, fixture support, blade contact and post-cut handling before selecting a replacement for cut to size.
Length varies while edge appearance is steady
Compare physical feed travel, clamp slip and relaxed measurement.
Only the exit side loses stitches
Inspect bottom support and end-of-stroke contact across the ply stack.
Blanks skew after pickup
Compare on-fixture and post-transfer diagonals and fiber-axis marks.
Acceptance Criteria for a Controlled Trial
Agree how the trial will be judged before changing the knife or machine setting.
- Measure consecutive released lengths and diagonals
- Check fiber-axis marks against the blank drawing
- Count loose stitch and tow ends at both cross-cuts
- Compare ply alignment after the specified pickup and stack step
Knife Forms That May Be Considered
| Possible knife form | When it may be considered | What must be confirmed |
|---|---|---|
| Supported straight cross-cut blade | Where the existing fixture restrains all plies either side of a transverse cut. | Confirm stroke, counter-surface and holder drawing. |
| Synchronized rotary cutoff | Only if the installed continuous-feed line uses rotary cutoff. | Confirm timing, ply support and end condition from numbered samples. |
Information to Send for Technical Review
You do not need to know the exact blade name. Send the available workpiece, machine, current-knife and cut-result information so the application can be reviewed against a drawing or sample.
- NCF grade, fiber axes, ply count and stitch type
- Supply width, roll or sheet state and incoming defects
- Blank drawing, datum and relaxed tolerances
- Feed, restraint and support drawings
- Installed blade, counter-surface and holder drawings
- Numbered accepted and rejected blanks with direction marks
- End-fray and ply-shift inspection limits
- Trial sequence, kit format and required quantity
Related Material Cutting and Service Pages
Questions About This Cutting Application
Can a blade be selected from the term carbon non-crimp fabric alone?
No. Check the supplied grade, actual machine interface, drawing and approved samples before specifying a component.
Does a clean end prove the length is correct?
No. Verify physical feed and released dimensions separately.
Why mark fiber axes?
The approved layup may require a specific orientation that a rectangular size alone does not show.
Can a single blank reveal feed drift?
Use consecutive numbered blanks under the same settings.
Public references and scope
These public sources provide material, cutting-method or safety context for this guide. Supplier pages describe their own materials or equipment; they do not establish a MEIRENTE blade specification or performance claim. Confirm the actual grade, machine setup and required cut with a drawing or sample.
Related product and service information
- Carbon Non-Crimp Fabric Profile Cutting Blades - carbon non-crimp fabric · profile cutting
- Nomex Honeycomb Core Cut To Size Blades - Nomex honeycomb core · cut to size
- Aerospace Structural Adhesive Film Cut To Size Blades - aerospace structural adhesive film · cut to size
Request a Custom Cutting-Knife Review
Send the workpiece details, machine or holder information, current knife photos or sample, required quantity and examples of the present cut problem. Final dimensions, material, edge geometry and tolerances are confirmed from the approved requirements.