Patent ID: 9358721
Filing Date: 2016-06-07
CPC Classification: B26D,B26F,B29C

Claim Text:
1. A method for the manufacture of a hole ( 10 ) in a component ( 12 ) consisting of a composite material, wherein the component ( 12 ) having first and second oppositely disposed sides ( 14 , 16 ) is placed with its first side ( 14 ) on a support ( 20 ) having an iris diaphragm ( 18 ), wherein a tip ( 24 ) which diverges in the axial direction ( 22 ) is pressed coming from the second side ( 16 ) of the component ( 12 ) through the component ( 12 ), which optionally has a pre-piercing, for the formation of the hole ( 10 ) or for the enlargement of the pre-piercing and wherein the iris diaphragm ( 18 ) has a smaller starting opening ( 28 ) which receives a narrower region of the tip and opens into a larger opening ( 32 ) with increasing penetration of the component by the tip.