Positive turning insert AddMultiTurn

negativecarbidefor metals

Overview
Six‑corner indexable turning inserts designed for versatile turning operations, enabling front (push) turning, back (pull) turning, profiling and face turning with a single tool system.

Applications

• External turning
• Internal turning

Features

• 1. Two corner and cutting edge angle options for versatile use
  • Double‑sided 6‑corner inserts available with 80° or 35° corner angle
  • Back (pull) turning: high‑feed designed cutting edge increases productivity (≈200% vs conventional ISO tools) without special programming
  • Front (push) turning: compatible cutting edge geometry for standard front turning processes
• 2. Chip control
  • Optimized chipbreaker geometries ensure controlled chip formation and evacuation in both front and back turning
• 3. Y‑PRISM safe lock design
  • Shim with rail and matching slot on the insert for tight interlocking and secure clamping
  • Prevents cutting forces from moving the insert in any direction, ensuring high stability
  • Both 80° and 35° insert types are interchangeable on the same toolholder
• 4. Tool life
  • AddMultiTurn inserts have demonstrated up to triple tool life compared with comparable ISO inserts at the same feed
  • Possible to double feed rate versus ISO inserts without compromising tool life

Inserts

• 3C‑TCMT — Positive 7° relief angle, M class, triangular insert
• 6C‑TOMG — Negative relief, M class, 80° corner angle insert
• 6V‑TOMG — Negative relief, M class, 35° corner angle insert

Grades

• AH8015 — Balanced wear and fracture resistance; preferred for heat‑resistant alloys under general cutting
• T9225 — Preferred for roughing to medium cutting; high fracture resistance
• T9215 — Balanced wear and chipping resistance; first choice for steel and versatile across applications
• AH6225 — Preferred for stainless steel; optimized wear and fracture resistance for stainless machining

Toolholders

• Double‑clamp AddMultiTurn toolholders (external turning)
• Screw‑on AddMultiTurn toolholders (external turning)

Practical examples
Example #1
Part: Turbine shaft
Material: SCr420 / 20Cr4
Toolholder: ATXOL2525M25‑A
Insert: 6C‑TOMG250608M‑TM
Grade: T9215
Cutting conditions: Vc = 147 m/min; Face turning: f = 0.35 mm/rev, ap = 1–2 mm; External turning: f = 0.5 mm/rev, ap = 0.5 mm; Coolant: Wet (external); Application: Face turning, External turning

Example #2
Part: Gear part
Material: S25C / C25
Toolholder: ATXOR2525M25‑A
Insert: 6V‑TOMG250604F‑TSF
Grade: T9215
Cutting conditions: Vc = 200 m/min; Roughing: f = 0.6 mm/rev × 2 passes; Finishing: f = 0.1 mm/rev × 1 pass; ap = 0.5 mm × 3 passes; Coolant: Wet (external); Application: External turning

Standard cutting conditions
Double‑sided 6‑corner insert
ISO: P — Finishing — Chipbreaker: TSF / TLF — Grade: T9215 / T9225 — ap (Front / Back): 0.2–1.5 mm / 0.2–1.5 mm — f (Front / Back): 0.08–0.4 mm/rev / 0.2–1.2 mm/rev — Vc: 150–400 (T9215) or 80–300 (T9225)
ISO: P — Medium to heavy — Chipbreaker: TM / TLM — Grade: T9215 / T9225 — ap (Front / Back): 0.5–2.5 mm / 0.5–2.5 mm — f (Front / Back): 0.2–0.6 mm/rev / 0.4–1.2 mm/rev — Vc: 150–400 (T9215) or 80–300 (T9225)
ISO: M — Finishing — Chipbreaker: TSF / TLF — Grade: AH6225 — ap: 0.2–1.5 mm — f: Front 0.08–0.4 mm/rev / Back 0.2–1.2 mm/rev — Vc: 60–240
ISO: M — Medium to heavy — Chipbreaker: TM / TLM — Grade: AH6225 — ap: 0.5–2.5 mm — f: 0.2–0.6 mm/rev (front) / 0.4–1.2 mm/rev (back) — Vc: 60–240
ISO: K — Finishing — Chipbreaker: TSF / TLF — Grade: T9215 — ap: 0.2–1.5 mm — f: 0.08–0.4 mm/rev (front) / 0.2–1.2 mm/rev (back) — Vc: 140–500
ISO: K — Medium to heavy — Chipbreaker: TM / TLM — Grade: T9215 — ap: 0.5–2.5 mm — f: 0.2–0.6 mm/rev (front) / 0.4–1.2 mm/rev (back) — Vc: 140–500
ISO: S — Finishing — Chipbreaker: TSF / TLF — Grade: AH8015 — ap: 0.2–1.5 mm — f: 0.08–0.4 mm/rev (front) / 0.2–1.2 mm/rev (back) — Vc: 20–80
ISO: S — Medium to heavy — Chipbreaker: TM / TLM — Grade: AH8015 — ap: 0.5–2.5 mm — f: 0.2–0.6 mm/rev (front) / 0.4–1.2 mm/rev (back) — Vc: 20–80

Single‑sided 3‑corner insert (summary)
ISO: P/M/K — Medium to heavy cutting — Chipbreaker: TM — Grade: T9215 — ap range: 0.5–4 mm (front) / 0.5–2 mm (back) — f: 0.2–0.6 mm/rev (front) / 0.4–2 mm/rev (back) — Vc ranges: P: 150–400; M: 100–250; K: 140–500

Caractéristiques / spécifications techniques

• Product name / model: AddMultiTurn
• Insert geometry: double‑sided 6‑corner inserts (6C / 6V) and single/triangular 3‑corner (3C‑TCMT)
• Corner angles available: 80° (6C‑TOMG) and 35° (6V‑TOMG)
• Relief: positive 7° for 3C‑TCMT; negative relief for 6C/6V types (M class)
• Lock mechanism: Y‑PRISM safe lock design (rail on shim + slot on insert for tight interlock)
• Applications: front (push) turning, back (pull) turning, profiling, face turning — one tool for multiple operations
• Typical grades: AH8015, T9225, T9215, AH6225 (selected per material and operation)
• Toolholders: double‑clamp and screw‑on AddMultiTurn holders for external turning; internal holders available for internal turning
• Performance: up to triple tool life vs comparable ISO inserts at same feed; allows doubling feed rate vs ISO inserts without reducing tool life
• Recommended cutting condition ranges provided per ISO material classification (P, M, K, S) and per chipbreaker/grade