Description
CARBIDE TURNING INSERTS SNMG
SNMG carbide turning inserts are double-sided, negative-geometry square inserts featuring a 0° relief (clearance) angle and a 90° included (nose) angle. These inserts are designed for medium to heavy roughing and general turning operations, offering high edge strength, excellent stability, and reliable wear resistance. They are suitable for machining a range of materials including steel, cast iron, and some non-ferrous alloys.
Made from cemented carbide (WC-Co) and often CVD or PVD coated (TiN, TiCN, Al₂O₃, TiAlN), SNMG inserts combine edge toughness, good chip control, and multi-index capability, ensuring dependable performance in demanding general turning applications.
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Key Features
• Shape: Square (S) with 90° included angle
• Relief Angle: 0° (negative geometry)
• Cutting Edges: Typically double-sided – up to 8 cutting edges per insert (depending on size and manufacturer)
• Mounting Type: Clamp or screw-on (compatible with standard ISO holders)
• Coatings: CVD or PVD – examples include TiN, TiCN, Al₂O₃, TiAlN (depending on grade)
• Application Type: Medium to heavy roughing, general turning and interrupted cuts
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Materials & Applications
SNMG carbide inserts are ideal for operations requiring robust tool strength, good chip control, and high reliability in more demanding turning applications. The negative geometry helps provide edge strength and resistance to chipping.
Typical Workpiece Materials:
• Steel (carbon and alloy) — general turning and roughing where inserts must endure higher loads
• Cast Iron (gray and ductile) — especially good for these materials due to insert strength and chip control capabilities
• Non-Ferrous Metals (Aluminum, Copper, Brass) — possible but less common; select polish/grade appropriately
Common Operations:
• Heavy roughing and semi-finishing of general parts
• General turning where strong insert geometry is needed
• Interrupted cuts and applications with higher radial or depth engagement
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Advantages & Performance
• High Edge Strength: Square shape and negative geometry provide strong cutting edges suited for tougher conditions
• Wear Resistance: Proper coating and substrate combinations extend tool life under moderate to heavy loads
• Multi-Index Capability: Up to 8 usable edges reduces cost per edge in production use
• Versatile in Material Range: With correct grade/coating combinations, suitable for steels, cast iron and even selected non-ferrous jobs
• Reliable in General Turning: The robust geometry makes it a go-to for many more standard turning tasks
