Trumpet Factory Tour 4

Holes

Brazing

Precision grinding

Holes
In this step, holes are bored precisely in six locations on each piston cylinder.

Brazing

In this step, tubes which serve as the passageways for three different air streams are fitted into the holes on the piston and brazed to it.

Precision grinding
In this step, the outer diameter of the piston and smooth surface is ground and polished to form a precise.

What's brazing?

Like soldering, brazing is a method of welding. It has a much higher melting point than soldering for superior strength.

Holes In this step, holes are bored precisely in six locations on each piston cylinder.
Brazing In this step, tubes which serve as the passageways for three different air streams are fitted into the holes on the piston and brazed to it.
Precision grinding In this step, the outer diameter of the piston and smooth surface is ground and polished to form a precise.

	What's brazing?
	Like soldering, brazing is a method of welding. It has a much higher melting point than soldering for superior strength.