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SUCCESSFUL APPLICATIONS

APPLICATION

Processing aim Deburring, surface smoothing after belt grinding and polishing of segments for surgical scissors

Process description Two-step vibratory process: Step (1) Deburring, surface smoothing. Step (2) Polishing. Loading/unloading by hand

Previous finishing method Vibratory process supplied by a competitor

WORK PIECES

Work piece name Scissor segments. Weight: (min/max) 4 - 6 ounces.

Material Stainless steel Dimensions (min/man) 2 x 6 x 0.3”

Manufacturing method Forging, grinding Condition of raw parts Grinding burs, relatively rough surface

Description Components for different kinds of medical/surgical scissors.

THE ROSLER SOLUTION

The Process Step (1): Deburring and cut down with fast cutting ceramic media Step (2): KeramoFinish smoothing & polishing.

Competition None

EQUIPMENT DETAILS PROCESS PARAMETERS

Machine/model 2 x flat bottom rotary vibrators w/o internal separation Compound Keramo paste / Standard cleaning compound

Equipment description One machine equipped for the special KeramoFinish paste polishing process

Media Type/SizeCut down: Fast cutting ceramic media. KeramoFinish: High density porcelain media

Post Treatment Drying Batch or Continous Batch

Waste Water Treatment By customer Batch Size About 300 pieces

Noise Protection Sound enclosing lid for cut down machine Process Time Step (1) 90 min. Step (2) 8 hours

Feed Rate Not applicable Capacity/hour About 30 pieces

Mass Finishing Success Story No. MFEH0004DE - Industry: Medical Instruments Deburring/surface smoothing and polishing of surgical scissor segments

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Special features of rotary vibes:

• Flat work bowl bottom for gentle processing of delicate parts.

• No internal seperation device, finished work pieces are removed by hand to avoid nicking.

Keramo Finish is a combined surface smoothing/polishing process utlilizing special grinding/polishing pastes with high density porcelain media. Keramo creates extremely fine mirror polishes with surface readings of Ra = 0.8 micro-inches (0.02 )

Surface readings pre Keramo (after pre-grinding):

Ra = 8 micro-inches (0.2 )

Surface readings post Keramo: Ra = 0.8 micro-inches (0.02 )