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NN, Inc. Precision Engineered Products Group Announces Electron Beam Welding Capabilities for Advanced Manufacturing of Medical Devices

High-Precision, Deep Weld Process Creates Ultra-Strong Welds in Vacuum Chamber Environment


Aurora, IL
— August 31, 2016— NN, Inc. Precision Engineered Products Group (PEP), a global manufacturer of highly engineered precision solutions serving the medical market, announces the addition of deep weld process technology to provide customers more options for complex precision assemblies. This electron beam welding capability will be used wherever high strength bonding of metal components is required, such as orthopedics and aerospace applications.  All welds are created in a vacuum chamber for ultra-low contamination and electron beams can be aimed with exceptional accuracy to weld even the smallest medical device components — with extremely high precision and strength that can be comparable to that of a monolithic unit.

Electron beam welding – which originated from applications in the aerospace industry – penetrates deep into a metal unlike typical surface welding (e.g., Gas Tungsten Arc Welding (GTAW), also known as Tungsten Inert Gas (TIG) welding, or Laser Beam Welding (LBW)).  It is a unique process whereby metal components are bonded via high velocity electrons which travel throughout the mating area, deep into the parts.  The beam can be aimed into a blind hole or below the surface of mating components.  This is particularly beneficial for orthopedic devices as electron beam welding offers high depth-to-width ratios.  Welds can go deep and only affect a narrow sliver of the surface, protecting surrounding materials from heat exposure. This means, for example, that a plastic handle can be assembled or over- molded prior to welding, reducing assembly time and potentially lowering the overall cost of the device.

The benefits of electron beam welding include:

  • Low heat affected zone, limiting impact on surrounding materials such as plastics
  • High strength
  • Low contamination
  • Superior depth of penetration/ high width-to-depth ratio
  • Can be used in complex assemblies to secure multiple components with a subsurface weld.

“We are pleased to be one of very few companies that can offer in-house electron beam welding capabilities along with a full range of medical device manufacturing services to our customers,” said Aaron Bailey, director of sales- medical, NN, Inc., PEP. “Electron beam welding drastically expands where welds can be created and the strength and quality of those welds. Its precise, high strength nature is well-suited for durable biocompatible metal instruments that are used in challenging intraoperative environments.”

NN, Inc., PEP has made significant investments into precision engineering equipment, putting the company at the forefront of electron beam welding and other advanced manufacturing technologies. The company can perform fully- CNC or manual electron beam manufacturing for delicate parts.

About NN, Inc. Precision Engineered Products Group

NN, Inc. Precision Engineered Products Group (PEP) is a world-class contract manufacturing partner trusted by leading medical and surgical device OEMs as a single source supplier for finished assemblies, sub-assemblies and precision components.  NN, Inc. PEP brings innovation and quality to design, tooling and prototyping, development and assembly of complex components, single-use disposables, surgical and drug delivery devices and instruments, orthopedic and spinal instruments, and implants. With locations in Franklin and Attleboro, MA; Aurora, IL; Warsaw, IN; Wallingford and Bridgeport, CT; and East Providence, RI, NN, Inc. PEP offers advanced manufacturing techniques such as additive manufacturing and electron beam welding, performed in FDA-certified cleanrooms.

NN, Inc. PEP has ISO 9001, ISO 13485 and TS 16949 certified facilities. The company also meets most ASTM and MIL standards, is FDA 21 CFR Part 820 Compliant and maintains approval for CE marking.

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