Patent ID: 6890467

Claim:
A method of producing a brake shoe ( 1 ) comprising the steps of press molding friction material under heat and pressure to form a friction lining ( 6 ), uniting the friction lining ( 6 ) to a carrier plate ( 2 ) forming grooves ( 8 ) in the friction lining ( 6 ) which open through a friction braking surface thereof remote from the carrier plate ( 2 ), after forming the grooves ( 8 ) subjecting at least the grooves ( 8 ) of the grooved braking surface to a scorching process, subsequent to the scorching process inserting a filling agent ( 12 ) into the grooves, and subsequent to the insertion of the filling agent ( 12 ) into the grooves subjecting the brake shoe ( 1 ) to one of a drying process, a hardening process and a cross-linking process depending upon the filling agent ( 12 ) characteristics.