Cambridgeshire, United Kingdom  ·  ISO 9001:2015 certified 01480 861 221  ·  info@cfcompositesltd.com
Home/Capabilities/Trim, bond & assembly

Trim, bond and assembly.

A cured part is not yet a finished one. It still has to come off its tool, be cut to its final edge and, often, be joined to something else.

Rooms3 dedicated
JoiningBonded
Larger partsBonded sections
01When you need it
The last stages before a part leaves.Where it gets its final shape.

The laminate comes out of cure with excess material around its edges. Holes, cut-outs and mounting faces have to be added, and many parts are assemblies, built from several cured pieces bonded together.

Keeping those stages apart matters. Trimming carbon produces fine dust, and dust is the last thing you want on a surface about to be bonded, or anywhere near a lay-up in progress.

02How it works

From the tool to the finished part.

01

Release from the tool

The cured part is taken off its mould in the release room. Care here protects both the part and the tool, which may be needed again.

02

Trim to the edge

Excess laminate is cut back to the finished edge, and holes and cut-outs are added.

03

Prepare the surfaces

A bonded joint is only as good as the surfaces it joins. Faces are abraded and cleaned so the adhesive grips the laminate itself, not a film of release agent or dust.

04

Bond and assemble

Parts are held in position while the adhesive cures, often in a fixture made for the job. Assemblies bigger than the 1.5 by 3 metre autoclave are built this way, as cured sections bonded together.

Trim room
Finishing an edge after trimming
03Equipment

The rooms.

Release, trim and assembly each have a room of their own, separate from the cleanroom.

Release roomDedicated
Trim roomDedicated
Assembly roomTemp controlled
Quality systemISO 9001:2015
04Who uses it

Where this comes up most.

Anywhere a part has to fit precisely against something else.

05Next

Where this fits.

06FAQ

Common questions.

About trimming, bonding and assembly specifically. The general ones are answered on the homepage.

What tolerance can you hold on a trimmed part?

It depends on the part: its size, its shape and what it has to fit against. Send us the drawing or tell us what it mates with, and we will tell you what is realistic.

Is a bonded joint as strong as a single moulded part?

A well-made bonded joint can be very strong, but its strength depends on how the joint is designed and how the surfaces are prepared. Where a joint sits and how load passes through it are decided at the design stage.

07 Enquiry

Tell us about the part.

A drawing, a photograph, or just a description. Whatever you have is enough to get a price, and we reply to most enquiries the same working day.

Nothing to attach? Leave it blank and describe the part above, or call us on 01480 861 221.

We reply to most enquiries the same working day.
Call us Request a quote