HOLE OR SLIT WORKING METHOD ONTO ELASTIC MEMBER

摘要

PURPOSE:To perform a hole or slit work of fine dimension with high accuracy onto the object to be worked by irradiating with condensing a laser beam on the working position of the object to be worked with the condition of extending the object to be worked having an elasticity. CONSTITUTION:The object 1 to be worked having the elasticity like the nipple, etc. for a nursing bottle is crowned to the jig 2 for extension with the condition of extending it within its surface to be worked. The extension ratio thereof is decided by the ratio of the opening size at the extension time and stationary time of the object 1 to be worked. The laser beam 3 condensed by a condenser lens 4 is then irradiated from the direction crossing with the surface to be worked and the focus 5 position thereof is set to the work position of the object 1 to be worked. In case of the work shape being a slit the object 1 to be worked is moved in the necessary direction within the surface to be worked with the condition of maintaining said focus position as it is. After working the hole or slit with the above the object 1 to be worked is removed from the jig 2 for extension and restored with shrinking to the stationary state of the original size.