Welding system provides large working area
A
Rofin-Baasel product story
Edited by the Engineeringtalk editorial team
May 9, 2008
The nearly perfectly Gaussian beam of the Rofin slab laser gives a depth of focus measured in tens of millimetres.
Rofin Baasel UK has incorporated its CO2 slab lasers into the Remote Welding System (RWS).
The Remote Welding System concept has the laser system mounted above the working area, on a gantry, with the laser beam delivered to the working area below by a series of mirrors.
The complete system is enclosed by safety guarding.
The system can incorporate one of a range of CO2 slab lasers available from Rofin.
One option available is the Rofin DC 060W, a CO2 slab laser with an average output power of 6kW and beam quality factor of K>=0.9.
This laser can produce a spot diameter of 600um for a maximum focal length of 1600mm.
The nearly perfectly Gaussian beam of the Rofin slab laser gives a depth of focus measured in tens of millimetres and the effective working envelope of the RWS has now been increased to 1500 x 2000mm.
Placing the beam-steering mirror on an independent high-speed linear-motor driven axis further extends the overall travel of the focusing lens, increasing the working envelope in the Y axis.
This ability to determine the position of the beam steering mirror provides even greater flexibility for the operator when programming around clamping fixtures and part tooling.
The high-powered motion motors, together with increased processing power in the motion controls, now gives typical indexing times of less than 50ms between weld stitches.
Up to 6kW of power is available in the DC 060W, with this combination producing high welding speeds, cutting cycle times.
The "rapid move" concept also improves machine availability and process optimisation.
With the capability to operate continuously on a three-shift pattern, approximately 20 million welding cycles can be generated without replacing any of the typical system wear parts.
Traditional spot welding processes which use multiple axes and multiple spot welding guns cannot achieve these levels of efficiency and speed.
Mounting the laser source on a gantry above the work area means that the system occupies the minimum of floor space while providing a large processing area.
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