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Process characteristics
Form knurling
Knurl profiles on
DIN 82 workpiece
RAA
RBL RBR RGE RGV RKE RKV
Application:
• Non-cutting forming
• Processing of workpieces suitable for cold forming
• All knurling forms and profiles can be manufactured
• Suitable for face and knurling within a bore
• Knurling up to a shoulder is possible
• Tool can be started at any location on the workpiece
Handling:
• Only minimal preparation of workpiece required
• Very easy handling of tool( short setup times)
Features:
• Material displacement increases the outer diameter of the workpiece
• The surface is compacted
• Form knurling of small diameters is possible only to a limited extent
Cut knurling
Knurl profiles on
DIN 82 workpiece
RAA
RBL RBR RGE
Application:
• Alternative cutting process
• Material removal at axial feed drive
• Machining of thin-walled, soft and hard-to-machine materials is possible
• Only cylindrical workpieces can be machined in axial direction
• Machining of small diameters is possible
• Maximum precision and surface quality, therefore suitable primarily for visible knurling
• A plunge cut is necessary for applying the tool in the middle area of the workpiece
• Knurling up to a shoulder is not possible
Handling:
• Requires precise tool adjustment and fine adjustment
• Requires precise preparation of the workpiece
Features:
• Minimal change in the outer diameter
• Minimal surface compaction
• Lower strain on machine than in form knurling
• Minimum pressure on the workpiece and machine
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