unlike the traditional 532nm crystal frequency-doubled green light, the 515nm green cross line laser module is a direct-emission pure green semiconductor laser. Without the need of a crystal resonant structure and features a built-in high-precision orthogonal optical lens group, this 515nm wavelength green laser diode made cross line laser module only emits highly bright and visible forest green light from an import laser diode, which is the most visually sensitive band for the human eye. This 515nm green cross laser alignment gets high visual sensitivity to the human eyes. Cross line projection remains clear even under interference from welding fumes and arc light, and are not obscured by the strong light of the welding arc. Welders do not need to painstakingly locate the lines, reducing visual misjudgment.
Cooperated with an import 515nm green laser diode within 50mW to 200mW output power, based on its different output power range, this green cross line laser module is designed with different size tube diameter of 16mm, 18.9mm and 26mm. As a result, owing to its sufficient space leaving for tube heat dissipation, only if it make constant cross line projection within 24 hours per day, it achieves increasing laser beam stability, ultra long time lasted green light and green vertical and horizontal lines generation stably. Highly reflective welding substrates such as aluminum, copper, and stainless steel have better absorption of 515nm light waves. The projected crosshairs from a 515nm green cross laser alignment do not diffuse, do not cause glare or ghosting, and the marking edges are sharp, solving the industry pain point of unclear positioning on highly reflective metals.
On consideration of its long term lasted cross line projection, 515nm green cross line laser module applies a qualified glass coated lens with 10, 15 and 110 degree fan angles, and adjustable focus optic lens in front of beam aperture. Owing to its strict laser beam stability and aging preventing tests up to 24 hours before flowing into laser market, even under high-temperature environments in welding workshops, the crosshair orthogonality of 515nm green cross laser alignment does not shift and the line width does not diverge during long-term operation. Frequent shutdowns for recalibration are unnecessary, making it suitable for 24-hour continuous welding operations. The unique use of built-in APC, ACC driving circuit board has just made perfect protection of itself from overheating, over current impact and other harsh working environments as well.
This durable structure made 515nm green cross line laser module is applicable for various metal welding conditions, including TIG welding, CO2 shielded welding, laser welding, spot welding, and weld jointing, serving as a pre-welding reference positioning and auxiliary marking for weld seam alignment. The module is compact and flexible in installation, thus it can be handheld to assist manual welding positioning or directly mounted on welding robots and welding fixtures as a machine vision-assisted positioning reference, adapting to automated production line upgrades. When 515nm green alignment laser makes correct selections of both output power and optic lens fan angle, it can significantly improve the alignment efficiency and forming quality of manual welding, and also meet the standardized and precise positioning requirements of automated welding. It is an ideal auxiliary positioning light source for metal welding processes.
