Abstract: A method of manufacturing a composite part where a layup is covered with a vacuum bag to which a reduced pressure is applied, the method including providing a uncompressible breather element between the layup and the bag to assist with airflow over a surface of the layup.

Abstract: A method of manufacturing a composite part where a layup is covered with a vacuum bag to which a reduced pressure is applied, the method including providing a uncompressible breather element between the layup and the bag to assist with airflow over a surface of the layup.

Abstract: A multi-layer, expandable sleeve (100) for a printing press cylinder and a method of manufacturing this expandable sleeve are provided. The sleeve has an inner layer (110) with a hard surface inner jacket (112), which defines a longitudinal axis (A) and the cavity for mounting on the cylinder, and an outer layer (130) with a cylindrical outer jacket (132) for carrying an outer shell, a printing plate or a separate outer sleeve, in particular. An intermediate layer (120), manufactured in the form of a lightweight honeycomb having honeycomb cells oriented radially (B) to the longitudinal axis (A), is provided between the inner jacket (112) and the outer jacket (132). The intermediate layer (120) includes at least one honeycomb layer (122-1, 122-2, 122-3, 122-4, 122-5) of fiber composite honeycomb consisting of fiber material embedded in a resin matrix that has been applied coaxially around the longitudinal axis (A).

Abstract: The invention relates to a multi-layer, expandable sleeve (100) for a printing press cylinder and to a method of manufacturing this expandable sleeve. The sleeve has an inner layer (110) with a hard surface inner jacket (112), which defines a longitudinal axis (A) and the cavity for mounting on the cylinder, and an outer layer (130) with a cylindrical outer jacket (132) for carrying an outer shell, a printing plate or a separate outer sleeve, in particular. An intermediate layer (120), manufactured in the form of a lightweight honeycomb having honeycomb cells oriented radially (B) to the longitudinal axis (A), is provided between the inner jacket (112) and the outer jacket (132). The intermediate layer (120) includes at least one honeycomb layer (122-1, 122-2, 122-3, 122-4, 122-5) of fibre composite honeycomb consisting of fibre material embedded in a resin matrix that has been applied coaxially around the longitudinal axis (A).

Abstract: The invention relates to a multi-layer, expandable sleeve (100) for a printing press cylinder, particularly for flexographic printing. The sleeve has an inner layer (110) with a hard surface inner jacket (112), which defines a longitudinal axis (A) and the cavity for mounting on the cylinder, and an outer layer (130) with a cylindrical outer jacket (132) for carrying an outer shell, a printing plate or a separate outer sleeve, in particular. An intermediate layer (120), manufactured in the form of a lightweight honeycomb having honeycomb cells oriented radially (B) to the longitudinal axis (A), is provided between the inner jacket (112) and the outer jacket (132). According to the invention, the intermediate layer (120) comprises at least one honeycomb layer (122-1, 122-2, 122-3, 122-4, 122-5) consisting of shaped cured fiber composite honeycomb made of fiber material embedded in a resin matrix.

Abstract: The invention relates to a multi-layer, expandable sleeve (100) for a printing press cylinder, particularly for flexographic printing. The sleeve has an inner layer (110) with a hard surface inner jacket (112), which defines a longitudinal axis (A) and the cavity for mounting on the cylinder, and an outer layer (130) with a cylindrical outer jacket (132) for carrying an outer shell, a printing plate or a separate outer sleeve, in particular. An intermediate layer (120), manufactured in the form of a lightweight honeycomb having honeycomb cells oriented radially (B) to the longitudinal axis (A), is provided between the inner jacket (112) and the outer jacket (132). According to the invention, the intermediate layer (120) comprises at least one honeycomb layer (122-1, 122-2, 122-3, 122-4, 122-5) consisting of shaped cured fibre composite honeycomb made of fibre material embedded in a resin matrix.

Abstract: The invention relates to a method for the production of a fiber reinforced sandwich component (10) having a honeycomb core (12), the honeycombs of which are closed on both sides. The honeycomb core is closed at least on one side by a cover layer (14) made of fiber material, which is embedded in matrix material.