Then heat and remove the octave pip

We remove the cork to start with

You can see the tube has collapsed and folded

This Bocal has the typical pull down fold in the pipe

Like so

Bocal Repairs

Not all Bocals can be repaired, they are one of the hardest items to remove dents and folds from IMO

Small graduated dent balls are used for the inside of the piping

I start with a draw plate to try and ease the shape back to round a little bit

With a steel cable we feed it through the pipe and attach one of the balls

After reworking inside and outside we have a rough shaped bocal again thar has small planing marks from the hammer and balls

Glancing blows we lower the high spots, and raise the low spots with the dent balls internally

Distand view of the reworked bocal

Carefully we rebuff the pipe

Buffer to smooth the surface out again

Resolder the octave pip back in

Glued into place

Some fresh cork for the tenon

We wrap the cork with a rag to apply pressure to the glued joint for 24hrs

Job finished, up close of the previously collapsed pipe

As one goes out, another comes in