WELDING: Direct Diode Laser Welder for Small Parts

Amada Miyachi's new DDL welder boasts low power consumption and high efficiency.

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A laser welder with localized heating is reportedly ideal for small plastic parts welding and where there are space limitations. The new ML-5120A, 120-watt direct diode laser (DDL) welder is newly available from Amada Miyachi America Inc., Monrovia, Calif. Boasting low power consumption and high efficiency, it is equipped with a temperature control function which required a separate dedicated unit to control laser output power.

The ML-512A welder directly applies light emitted from laser diodes (LDs) for thermal processing without passing through a lasing medium, such as Ytterbium (Yb)-doped fiber or Nd-YAG (neodymium-doped yttrium aluminum garnet). As is the case with other energy-saving DDL laser devices, this unit generates an invisible infrared wavelength of 915 nanometers. Fast and environmentally friendly, this laser welder is said to be ideal for plastic welding as the base materials are bonded together, eliminating the need to wait for an adhesive to harden; which also facilitates easy recycling. The unit may be used with an optical fiber delivery system, including those that feature two energy-sharing delivery cables to improve productivity. It is also equipped with a power monitor as standard equipment.