On October 22, 2019, the Albuquerque-based Aerosol Jet Printing technology company Optomec launched the Laser Near Net Shaping (LENS) deposition head (LDH 3.X) for metal 3D printing, which enables optimized directional energy deposition (DED).
Tom Cobbs, LENS product manager at Optomec, said: "Users of metal additive manufacturing continue to seek higher laser power, faster speeds and higher deposition rates to maximize production, but do not want to sacrifice manufacturing quality. Laser control of power density becomes key factor."
"The new LDH 3.X deposition head is a significant advancement in DED technology. With its versatility, reliability and ease of use, users can control the laser power density on the workpiece to achieve the best results in a variety of industrial applications. "
LDH 3.X laser deposition head
The LENS system uses a high-power laser (from 500W to 3kW) to fuse powdered metals into a fully dense 3D structure. LDH 3.X is integrated into Optomec's metal 3D printing system, including LENS CS 600 and CS 800, and achieves high power through an advanced circulating cooling system and variable optics.
The functions of LDH 3.X include improved channels, water cooling heads, and quick nozzle changes. Different nozzle types (such as 4-pin tips, coaxial cables, high overhangs, etc.) can be replaced according to the application. In addition, LDH 3.X will work for a long time under high power without overheating.
This laser deposition head is designed for various industrial applications, including large and small structures, high-speed deposition, maintenance, coating and cladding at high power. It has a focused spot size of 0.6 mm and can be used to handle smaller parts or complex feature construction, while a focused spot size of 2 or 3 mm can provide higher laser power for large parts or compound operations.
Earlier in 2019, Optomec signed an agreement with Phillips Federal, a leading US machine tool supplier, to integrate the LENS system into the military. The LENS technology blows the metal powder material through the nozzle and melts when it contacts the laser array.
Previously, to enable LENS to provide repairs for gas turbines and engines, Optomec acquired South Carolina CNC and laser cladding machine supplier Huffman LLC. In addition, it has found applications in maintenance, repair and overhaul services, repair of old parts, and reduction of waste.
Most Optomec LENS system models can use Optomec LENS LDH 3.X, prices start at $ 10,000, and can be upgraded from LDH version 2.0. Variable optics and nozzles are sold separately.