For the manufacture of tooling for composites, Invar 36 offers a unique combination of matched thermal expansion to avoid warping during the curing cycle, along with strength, rigidity, durability, ease of fabrication and availability.
Invar 36 is most often used for the thermoset epoxy systems. Since Boeing Commercial Airplane Group first used a nickel-iron alloy tool, in 1985, hundreds have been built by Boeing and by specialist tool makers to support a range of aerospace applications.
Alloy 36 is also being used for resin transfer molded (RTM) tools, a process in which the carbon fibers are laid up and the resin is injected into the tool mold.
 |
| Invar 36 Strip |
