Description
CARBIDE TURNING INSERTS SNMM
SNMM carbide turning inserts are double-sided, negative-geometry square inserts featuring a 0° relief (clearance) angle and a 90° included angle. Designed for heavy roughing, semi-finishing, and general turning, SNMM inserts provide high edge strength, superior stability, and consistent performance in demanding cutting conditions. They are widely used for machining steel, cast iron, and stainless steel, particularly in applications requiring rigidity and long tool life.
Made from cemented carbide (WC-Co) and often CVD or PVD coated (TiN, TiCN, Al₂O₃, TiAlN), SNMM inserts offer excellent wear resistance, thermal stability, and durability. Their thick, double-sided design ensures high toughness and allows for multiple cutting edges, maximizing productivity and cost efficiency.
________________________________________
Key Features
• Shape: Square (S)
• Relief Angle: 0° (negative geometry)
• Cutting Edges: Double-sided – 8 cutting edges per insert
• Included Angle: 90°
• Mounting Type: Clamp or screw-on (compatible with ISO standard toolholders)
• Coatings: CVD or PVD – TiN, TiCN, Al₂O₃, TiAlN (depending on grade)
• Application Type: Heavy roughing, semi-finishing, and general turning
________________________________________
Materials & Applications
SNMM carbide inserts are designed for rigid setups and powerful machines, where high cutting forces and depth of cut are common. The negative geometry and flat-top design provide enhanced edge strength, making them suitable for continuous and interrupted cuts.
Typical Workpiece Materials:
• Steel (carbon and alloy) — excellent for roughing and semi-finishing at high cutting parameters
• Cast Iron (gray and ductile) — performs reliably with strong edges and chip control
• Stainless Steel — when used with suitable grades and coatings to reduce heat and built-up edge
• Superalloys (limited use) — certain grades may perform in stable, low-speed operations
Common Operations:
• Heavy roughing with deep cuts
• Semi-finishing and facing
• Interrupted cutting and high-feed operations
• General turning where toughness and edge life are critical
________________________________________
Advantages & Performance
• High Edge Strength: Negative geometry and thick cross-section ensure resistance to chipping and breakage under heavy loads
• Excellent Wear Resistance: Advanced coatings provide long tool life in abrasive materials and high-temperature conditions
• Stable and Rigid: Strong clamping and robust design minimize vibrations and improve dimensional accuracy
• Cost-Efficient: Double-sided construction offers up to 8 cutting edges, reducing tooling cost per part
• Versatile: Suitable for a wide range of materials and cutting conditions with various chipbreaker and grade options
