Gsi Group Corporation

Gsi Lumonics Corporation

Laser Mechanisms, Inc.

Gerald Francis Hermann

David M Filgas

Keith Withnall

Daniel R Buckley

Walther Goethals

Thomas Robert Kugler

Mohammed Naeem

Scott Swartzinski

Keith Jefferies

Mark S Leybzun

Christopher R D Miller

Keith A Jefferies

Scott D Swartzinski

The high speed, high accuracy capacitive gauging system employs an oscillator fed through steep slope filter that is discriminates between very small changes in capacitance even in the presence of electrical noise. During intervals when the probe tip is retracted, the oscillator frequency is calibrated to match the sweet spot in the center of the linear operative region of the steep slope filter. This calibrates the system to overcome the effects of varying temperature and humidity in the manufacturing environment.

Fast response capacitive gauging system featuring steep slope filter discrimination circuit

Laser processing methods, systems and apparatus having a super-modulating power supply or pumping subsystem and high beam quality (i.e., brightness) are disclosed. The methods, systems and apparatus have significant benefits, improved operation characteristics and material processing capability over currently available methods, systems and apparatus. In at least one embodiment, the beam quality of a high power solid state laser is improved in the presence of thermal lensing. High power laser cutting, scribing, and welding results are improved with a combination of modulation and high beam quality while providing for improved processing speeds.

Methods and systems for laser processing a workpiece and methods and apparatus for controlling beam quality therein

Laser processing methods, systems and apparatus having a super-modulating power supply () or pumping subsystem () and high beam quality (i.e., brightness) are disclosed. The methods, systems and apparatus have significant benefits, improved operation characteristics and material processing capability over currently available methods, systems and apparatus. In at least one embodiment, the beam quality of a high power solid state laser () is improved in the presence of thermal lensing. High power laser cutting, scribing, and welding results are improved with a combination of modulation and high beam quality while providing for improved processing speeds.

A laser cutting or welding device, the device having a laser head ( ) and a robot ( ), wherein the laser head is attached to the robot ( ). The laser head ( ) has a housing ( ), a focal lens ( ) disposed within the housing and a light source ( ) in optical communication with the focal lens ( ). The housing ( ) has a nozzle with a tip ( ), the tip having an exit port ( ). The laser head ( ) has means ( ) for adjusting a light path of a light beam directed from the light source onto a focal optic to center a focusing beam formed by the focal optic coaxial with the tip. In one aspect hereof, the laser device has a crash avoidance system.

Robotically operated laser head

A method and system for laser welding non-circular or non-concentric parts, such as catalytic converter components. The present invention provides a method (and corresponding system for carrying out the method), comprising: providing a part having sections to be welded together; rotating the part on a constant speed rotary; generating a laser beam; directing the laser beam onto a surface of the part to weld the sections of the part together; and controlling the laser beam such that an angle of incidence of the laser beam on the surface of the part remains constant, the laser beam remains in focus on the surface of the part, and the laser beam moves at a constant surface speed along the surface of the part as the part is rotated on the constant speed rotary.

Method and system for laser welding

Growing community of inventors

Westland, MI, United States of America

Gerald Francis Hermann