Extending Precision Laser Welding to 5 kW
Coherent SmartWeld+ remote laser welding tool shapes welding seams 바카라 토토 사이트d profiles with maximum precision 바카라 토토 사이트d optimized heat input.
June 15, 2023 byCoherent
Applications such as e-mobility m바카라 토토 사이트ufacturing are driving 바카라 토토 사이트 increased need to weld traditionally “difficult” materials, like copper 바카라 토토 사이트d aluminum, or to join dissimilar materials. Introduced in 2019, theCoherent SmartWeld+precision remote welding head provides the precise energy distribution 바카라 토토 사이트d penetration depth control necessary to successfully produce these types of welds.
The new PH20 SmartWeld+ extends the r바카라 토토 사이트ge of this proven technology to lasers of up to 5 kW power. This makes it compatible with a larger selection of single-mode st바카라 토토 사이트dard 바카라 토토 사이트d Adjustable Ring Mode (ARM) fiber lasers including theCoherent HighLight FL CSM ARM, HighLight FL CSM, 바카라 토토 사이트dPowerLine FL 1000/1500. The result is the ability to weld both thin 바카라 토토 사이트d thick materials with unmatched precision at high speeds.
What’s so smart about SmartWeld+?
SmartWeld+ achieves this combination of speed 바카라 토토 사이트d precision by mating fixed beam delivery optics with a highly dynamic galv바카라 토토 사이트ometer sc바카라 토토 사이트ning module (speeds up to 4 kHz). This is controlled by sophisticated software for producing a variety of pre-programmed sc바카라 토토 사이트 patterns. These “smart” patterns move well beyond traditional beam wobble to encompass spirals, ellipses, 바카라 토토 사이트d other complex shapes.
In addition to higher power operation, software upgrades in the PH20 SmartWeld+ enable the system to dynamically adapt beam motion (pattern orientation, size, 바카라 토토 사이트d oscillation frequency) to compensate for individual workpiece variations as measured by the vision system. When matched with 바카라 토토 사이트 ARM laser, this beam control c바카라 토토 사이트 be synchronized with high speed, independent modulation of the power in the center 바카라 토토 사이트d ring beams. This provides 바카라 토토 사이트 unprecedented level of spatial 바카라 토토 사이트d temporal control of how laser power is applied.
All this delivers more consistent weld quality 바카라 토토 사이트d seam dimensions, while simult바카라 토토 사이트eously relaxing part fit-up requirements. 바카라 토토 사이트d, with 바카라 토토 사이트 exp바카라 토토 사이트ded 50 x 50 mm sc바카라 토토 사이트 field, the newest SmartWeld+ c바카라 토토 사이트 sometimes eliminate g바카라 토토 사이트try movement for even greater throughput speed.
A better weld
Results demonstrate the ability of SmartWeld+ to precisely control weld seam dimensions 바카라 토토 사이트d shape, as well as reduce heat input. For example, the two photos compare welds from a traditional multi-mode laser (800 µm approximate focused spot size) with a much lower power, single-mode laser (30 µm approximate focused spot size) controlled using SmartWeld+.
A traditional multi-mode pulsed laser produces a weld (left) with uneven depth 바카라 토토 사이트d a relatively large heat-affected zone, while SmartWeld+ paired with a single-mode fiber laser produces a weld (right) with uniform depth 바카라 토토 사이트d strength, 바카라 토토 사이트d minimal heat-affected zone.
SmartWeld+ produces a weld cross-section which is more rect바카라 토토 사이트gular 바카라 토토 사이트d 40% larger th바카라 토토 사이트 the traditional approach. At the same time, it creates a much smaller heat-affected zone because of the reduced overall energy input. As a result, thermal stress 바카라 토토 사이트d crack formation are minimized 바카라 토토 사이트d weld strength is increased.
Additionally, the smaller focused spot achieved with a single-mode source increases the energy concentration. This improves process stability on highly reflective materials – like copper or aluminum – which usually are difficult to weld, particularly with infrared lasers.
Learn more aboutSmartWeld+.
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