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LENS (Laser Engineeered Net Shaping )

LENS uses a high-powered laser to dynamically build fully functional parts from metal powders, including titanium, steel, nickel- and cobalt- based superalloys. Complemented by proprietary software and controls, Optomec’s LENS systems can repeatably produce structures with excellent mechanical properties in order to fabricate, enhance, or repair high-performance components directly from CAD data.

LENS Process

The benefits of LENS are centered on driving down the lifecycle cost of developing, manufacturing and servicing metal dependent end-products by providing lower production costs, improved functionality and faster time-to-market. Key highlights of the process include:

  • Direct input from CAD data reduces setup and tooling costs, and allows for quick design changes
  • Single step process reduces operational time and operational costs
  • Additive approach reduces material waste and costs
  • Additive approach facilitates cost-saving Hybrid Manufacturing alternatives
  • Superior mechanical properties lead to longer part life and improved performance
  • Novel shapes and material compositions allow for increased design flexibility
  • Small Heat-Affected Zone uniquely enables repair of sensitive components
LENS can be used throughout the entire product life-cycle for applications ranging from Materials Research to Functional Prototyping to Volume Manufacturing. And, since LENS is truly a free-form process, one of its greatest benefits is the ability to add material to existing components in Service and Repair applications.


LENS in Aerospace & Defense Medical Device Fabrication Automotive

Component Repair
LENS has demonstrated significant Returns on Investment (ROI) for users repairing high-value components, such as those found in the Gas Turbine Engines that power airplanes and military vehicles.

LENS offers both cost and functional advantages for Repair applications. First, LENS can quickly add a very precise amount of material to worn or damaged surfaces, minimizing the required post-processing. And, because LENS is a highly targeted approach, it exposes the part to far less heat than conventional methods, avoiding damage to sensitive components. Finally, a LENS repair has exceptional mechanical properties and interface characteristics, often superior to those of the native material. This means that a LENS repair often outlasts the original surface.

Blisk Repaired With LENS

T-700 Blisk Repaired With LENS
(Courtesy: US Navy)

Component Fabrication
LENS is also a compelling component manufacturing solution for Aerospace and Defense markets, due to its ability to produce an entire component with superior mechanical properties in less time and at less cost. Performance advantages are also made possible based on the unique capability of LENS to produce internal hollow structures, and functional material gradients where a single component is made up of multiple materials and properties.

In addition to its ability to produce a complete part, LENS can also be used as a complement to traditional methods to create cost-effective hybrid manufacturing routes where, in example, one would use LENS to add the high-resolution features onto a large cast component, or add a wear-resistant surface.

Satellite Housing

Titanium Satellite Housing
(Courtesy: Lockheed Martin/ICE Prototyping)

Functional Implants & Surgical Tools
LENS is an emerging solution for medical device manufacturing, including the development, prototyping and production of specialty surgical instruments and prosthetic implants, such as hip, knee and spinal devices.


LENS can further be used to manufacture medical devices with a range of functional enhancements that improve wear characteristics and ultimate quality of life for the patient, such as:
  • Quick turnaround for emergency procedures
  • Longer part life and increased wear resistance reduces need for revision surgeries
  • Lower weight and custom fit devices improve patient comfort
  • Surface Texturing for improved integration with native tissue
Ti Hip

LENS Titanium Hip Implant


Automotive.
LENS is being evaluated for other high performance applications such as structural parts for F1 Race Cars, Racing Motorbike exhaust valves and premium automotive components. The key drivers for these applications are:

  • Materials Properties and Performance
  • Flexible/Agile Manufacture
  • Economic & Rapid Manufacture
Suspension Bracket
 
LENS Titanium Suspension
Mounting Bracket
(Courtesy: Red Bull Racing)

Ti Exhaust Valve

LENS Titanium Exhaust Valve
(Courtesy: ICE Prototyping)

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