Energy beam processing method and processing apparatus therefor
US6346687B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 18, 1999 |
| Grant date | Feb 12, 2002 |
| Priority date | — |
| Expiry date | Feb 18, 2019 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K26/082
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
An energy beam method and apparatus for processing a workpiece is accomplished by making the energy density per unit time and unit area of the energy beam proportional to the traveling velocity of the workpiece. This is accomplished by adjusting the frequency, irradiation power, or duty cycle of the energy beam. The travel velocity of the workpiece is measured by using a linear scale to generate pulse signals, calculating a traveling velocity based on the pulse signals and generating a pulse signal, dividing the pulse signals output by the calculation step, and generating a trigger signal in response to the pulse signals created by the dividing step to drive an energy beam irradiation device (such as a laser generator) to output the energy beam.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.