LASER MACHINING
In addition to proper clamping, the fixture must also provide the proper shield- ing of the top and back sides of the weld. Shield gas is provided to the top of the weld using Laserdyne’s SmartShield welding nozzle. Shield gas is provided to the back side of the weld through a special groove in the fixture beneath the weld.
Multiaxis Laser Workcell for Cutting, Drilling, Welding IPG Photonics’ (Oxford, MA) Multiaxis Laser Workcell is a cost-efficient tool for cut- ting, drilling and welding a wide range of metal components, enclosures and fabrica- tions. Configurable with IPG’s high-efficiency CW lasers or high peak power QCW la- sers, the Multiaxis Workcell provides fast processing of even highly reflective materials. Available as either a manual load system or with IPG-designed automated part handling, the Multiaxis Workcell has application in the manufacture of medical de- vices, automotive components, electrical enclosures, or any similar metal structures. Machine construction and the system are based on a granite table and super-
structure for thermal and mechanical stability. High-force linear motors provide pre- cision high-speed X-Y motion compatible with processing intricate components, with a 300-mm travel Z-stage enabling machining of 3D parts. Rotary motion can be applied to any, or each of the primary stage axes, with a process head tilting option also available. The motion and laser processing system is integrated within a Class 1 laser safety enclosure with a laser safe viewing window. Automation is enabled by an industrial CNC controller having a custom Windows-based HMI and software for G- and M-code programming. The Multiaxis system can be configured for welding or cutting by selection of
the appropriate IPG fiber laser and processing head. For welding, the high peak power QCW laser combined with the Wobble and Seam Tracker head provides the flexibility to handle dissimilar metals and badly fitting parts, in addition to im- proving the weld quality of materials prone to poor formation and thermal crack- ing. Spot welding, seam welding, and formation of hermetic seals are among the typical applications. For customers with smaller parts, the Compact Multiaxis provides a lower-cost solution with a smaller footprint. Both system types can be configured for cutting, drilling or welding by choosing the appropriate IPG processing head.
Cutting applications benefit from
IPG’s wide selection of lasers. With an emission wavelength of 1 µm, fiber lasers’ efficiency in cutting metals is better than CO2
alternatives; higher
beam quality allows for faster cutting of parts or the option of using a lower power laser. Selecting between the higher-power FLC-30 cutting head or the higher-precision Micro-cutting head allows further optimization of the systems cutting capabilities.
GF Machining Solutions 847-913-5300 /
www.gfms.com/us
IPG Photonics 508-373-1100 / www.ipgphotonics
Laser Mechanisms Inc. 248-474-9480 /
www.lasermech.com
Prima Power Laserdyne 763-433-3700 /
www.primapower.com
Trumpf Inc. 860-255-6000 /
www.us.trumpf.com 58
AdvancedManufacturing.org | November 2016
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