Broaches, Hobs, Master Gears & Gauges

Variant definition

• Cutting geometry &material
• Surface finish requirements
• Locating / clamping features : shank, pilot, puller
• Mfg strategy : simultaneous cutting, cutting sequence, roughing / finishing
• Machine compatibility
• No. of teeth / types of teeth

Design considerations

• Strength of material
• Process limitations
• Cutting angles
• Chip flow
• Material removal rate

Knowledge/ rules

• Cutting edge / relieving angles
• Profile correction rules
• Tooth pitch
• Depth of cut