Sim, mas com dificuldade.
Da série Legado da Força de Troy Denning, livro 6, página 21 ( ênfase minha):
Ben ignited his lightsaber then rolled to his feet, Force-sprang to the droid’s side, and swung at its cannon arm. The laminanium was so strong that his first strike cut only halfway through. The Guardian spun toward him, its other arm coming around like a club, its fingers spraying flechettes in random directions.
Ben stepped after the cannon arm and swung again, using the Force to guide his blow. He felt his lightsaber sink into the same cut as before and slice through, then turned toward the other arm and attacked the flechette-spraying hand at the wrist.
E de A Guerra do Enxame , também de Troy Denning:
Luke had no choice but to block with his blade, and no place to block but the forearm. Raynar's lightsaber went spinning off, still securely in the grasp of his three-fingered hand, and caught one of Luke's bugcrunchers squarely in the back. The weapon sliced through six centimeters of laminanium armor before the severed forearm flew free. The blade deactivated, and the hilt disappeared into the tangle of death and destruction at the droid's feet.
Ficando ainda mais abaixo na escala canônica, temos o seguinte de Jogos de RPG de Star Wars :
Laminanium-iron alloy plaiting can withstand blaster fire, and a single glancing blow from a lightsaber.