초록 ▼

A method for forming a slot in a metal component having first and second opposite surfaces utilizes a first laser beam having a pulse rate and power to vaporize the metal. The laser beam is traversed across the first surface at a feed rate so that each beam pulse vaporizes the component metal at a s

A method for forming a slot in a metal component having first and second opposite surfaces utilizes a first laser beam having a pulse rate and power to vaporize the metal. The laser beam is traversed across the first surface at a feed rate so that each beam pulse vaporizes the component metal at a spot. The laser beam pulse rate and feed rate are effective so that successive spots do not substantially overlap each other. The laser beam is traversed in repeated steps in a series of passes so that the spots collectively form a continuous slot to a depth below the first surface. In a subsequent step, a second laser beam is positioned in the slot to drill a hole through a base of the slot, with the second laser beam being repositioned to drill a plurality of the through holes spaced apart from each other along the length of the slot.

대표청구항 ▼

[ Accordingly, what is desired to be secured by Letters Patent of the United States is the invention as defined and differentiated in the following claims:] [1.] A method for forming a slot in a metal component having first and second opposite surfaces spaced apart at a thickness, comprising the ste

[ Accordingly, what is desired to be secured by Letters Patent of the United States is the invention as defined and differentiated in the following claims:] [1.] A method for forming a slot in a metal component having first and second opposite surfaces spaced apart at a thickness, comprising the steps of:effecting a first laser beam having a pulse rate and power to vaporize said metal;traversing said first laser beam across said first surface at a feed rate so that each beam pulse vaporizes said metal at a spot; andsaid pulse rate and feed rate being effective so that successive spots do not substantially overlap each other; andrepeating said traversing step in a series of passes so that said spots collectively form a continuous blind slot in said metal component to a depth below said first surface and having a width, and a length greater than said width.