Automotive – Ring Gear

Tooling concepts

• Achieving stable long life through materials with excellent wear resistance and resistance to damage
• Process consolidation with chamfered edge composite drills
• Improve machining efficiency and lower production costs by applying hard turning in post-hardening processes, eliminating the need for grinding

Process 1: Finish internal/face turning

Benefits

• Introducing the “A-type holder” with excellent operability and insert clamping rigidity to stabilize the cutting performance of inserts
• ISO-ECO TRN:Economical and environmentally friendly inserts that are smaller than standard inserts, reducing resource usage
• Ensuring equivalent performance to standard sizes while being smaller in size
• The ZM chip breaker exhibits excellent chip control not only during general machining but also during radius machining

• A unique tough coating treatment technology that prevents cracks in operation and provides stable machining
• Latest CVD coating layer provides excellent wear resistance and excellent fracture resistance

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Process 2: Finish external turning

Benefits

• With a single screw tightening action, double clamping for both pull-in and pushing is possible, achieving excellent cutting edge stability with high clamping strength
• Increasing clamping force through expanded contact surfaces suppresses blade vibration, enhancing reliability

• A unique tough coating treatment technology that prevents cracks in operation and provides stable machining
• Latest CVD coating layer provides excellent wear resistance and excellent fracture resistance

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Process 3: Combination drilling with chamfering

Benefits

• Combined drilling and with chamfering using a DrillMeister head
• Achieving process reduction through simultaneous drilling and chamfering
• The drill head enables easy and quick head exchange through its unique self-locking clamp system
• The drill head provides stable long life without the need for regrinding or recoating, making it ideal for improving machining costs

DMP drill head

• Low resistance with sharp R-honing
• The latest AH9130 grade exhibits outstanding wear resistance in hole drilling, achieving stable long life

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Process 4: Back Chamfering

Benefits

• Chamfering cutter adopting economically efficient single-sided 4-corner inserts
• With a small insert size of 5mm square, it enables chamfering of minimum φ6 holes
• Achieving high machining surface quality by suppressing burr and chatter with sharp cutting edges

• Using the AH725 grade known for its high wear resistance

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Process 5: Finish face turning

Benefits

• Achieving stable machining by securely clamping the insert from two directions, improving resistance to damage
• Easy insert replacement with single-operation capability
• The double-clamping mechanism ensures stable performance even during heavy interrupted cuts, realizing high productivity and machining quality
• The adoption of the TSF breaker enables excellent chip control and low resistance in finishing operations

• A unique tough coating treatment technology that prevents cracks in operation and provides stable machining
• Latest CVD coating layer provides excellent wear resistance and excellent fracture resistance

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Process 6: Finish face turning (Hard turning)

Benefits

• Excelling in chip evacuation to suppress tool and workpiece damage caused by chip jamming or entanglement
• Designed to bring oil holes as close as possible to the tool edge to accurately supply cutting oil, thus suppressing flank wear and edge recession, achieving long life
• BR35F is the first choice grade for heavy interrupted cuts, providing excellent resistance to damage in quenched and tempered steel machining

GNGA inserts

• Improved chip evacuation and machining surface quality by increasing the clearance between cutting edge and workpiece
• Chip biting is suppressed when machining end faces and when machining close to the edge of the face
• Compatible with ISO standard holders

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