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Medical Bone Screw Surface Before ISF Process

Bone Screw Before ISF Process

Surface Finishing for Medical Applications

The medical device, medical implant, and surgical tool industries demand the highest quality components and the most reliable manufacturing processes given the critical nature of the end use applications. Medically implanted devices often have complex geometries and are composed of stainless steel, titanium and other superalloys, making them difficult to hand or electropolish. Smooth surfaces are desired for corrosion resistance, sterility and reduced wear.

Medical Bone Screw Surface After ISF Process

Bone Screw After ISF Process

REM’s ISF®­­­ Process is an isotropic superfinishing process that can polish these demanding component applications and provide critical advantages to the medical industry.  By producing ultra low Ra surface roughness (Ra<2 µin.) and producing a unique, non-directional, low skew/high flatness surface, the ISF Process is able to enhance part sterility by removing surface crevices (accumulation points for bacteria and other debris), increase resistance to fretting and other corrosion types, and improve blood contacting performance in the form or reductions in hemolysis and thrombosis. Lastly, due to the unique controllability of the the ISF Process linked to its chemical-mechanical polishing technique, critical part geometries are able to be maintained in a mass finishing-like environment that offers superior process control to manual operations.

Common Medical Applications for ISF Process:

  • Blood Contact Parts
  • Bone Screws and Plates
  • Artificial Knee and Hip Implants
  • Stainless Steel Surgical and Dental Instruments

Component Benefits for Medical Applications:

  • Reduced Wear
  • Improved Corrosion Resistance
  • Reduced Contact and Bending Fatigue
  • Reduced Hemolysis and Thrombosis in Blood Contacting Parts
  • Improved Sterility

Production Benefits for Medical Applications:

  • Eliminate Abrasive Mass Finishing
  • Potential to Reduce or Optimize Deburring Operations
  • Potential to Reduce or Eliminate Hand Polishing Operations

Common Medical Alloys that REM can Assist with:

  • Stainless Steels (ex. 316L)
  • Titanium Alloys (ex. Ti-pure, Ti 6Al-4V)
  • Specialty Alloys (ex. NiTi)

Common Medical Component Forming Methods the ISF Process Can Improve:

  • Milled
  • Forged
  • Stamped
  • Pressed and Sintered

Interested in learning more, ready to start a project, or have an application that you don’t see listed here?  Contact us today to see how we can help solve your surface finishing/polishing needs.

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