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TM Series Carbide 4 Flutes Flat End Mill

Engineered for aggressive roughing & stable semi-finishing of titanium alloys & nickel-based superalloys. High bending strength, unequal pitch design, and mirror-polished flutes deliver chatter-free machining with extended tool life.

Solid Carbide 4 Flutes Unequal Pitch Polished Flutes Ti-6Al-4V / Inconel Roughing & Semi-Finishing
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TM Series Carbide 4 Flutes Flat End Mill
TM Series Carbide 4 Flutes Flat End Mill
TM series 4 flute solid carbide flat end mill for titanium and superalloys unequal pitch
Titanium alloy chip formation and evacuation

Procurement & Commercial Terms

MOQ1 pc (sample/stock) | 50 pcs (OEM/bulk)
Lead Time3–5 days (standard stock) | 10–15 days (custom/OEM)
InventoryØ3.0–Ø20.0 in stock. Custom diameters & lengths available on request.
Custom OptionsExtended lengths, slim shanks, alternative substrates, laser marking, private packaging
PackagingIndividual vacuum blister + anti-rust paper | Rigid export cartons (50/100 pcs)
ShippingDHL/FedEx/UPS for samples | Air/Sea freight for bulk. Incoterms: EXW, FOB, CIF, DDP

Advanced Engineering for Titanium & Superalloy Machining

High Bending Strength

Premium micro-grain carbide substrate resists deformation under high cutting forces. Effectively suppresses chipping and fracture during aggressive roughing of titanium and nickel alloys.

Mirror-Polished Flutes

Rake and flank faces are precision polished to reduce friction coefficient. Lowers cutting temperature, minimizes adhesive wear, and ensures smooth chip flow in gummy materials.

Unequal Pitch Design

Irregular tooth spacing disrupts harmonic resonance frequencies. Eliminates chatter marks, reduces spindle load, and enables stable side milling and shallow slotting in difficult-to-cut alloys.

4-Flute Roughing & Semi

Optimized flute count balances chip evacuation space with core rigidity. Ideal for side milling, shallow slotting, and transitioning from heavy roughing to precise semi-finishing operations.

TM-4F Dimensions 

TM-4F Dimensions

ModelD (mm)d (mm)H (mm)L (mm)Stock
TM-4F-3-9-4-5034950●
TM-4F-4-10-4-50441050●
TM-4F-5-13-6-50561350●
TM-4F-6-15-6-50661550●
TM-4F-8-20-8-60882060●
TM-4F-10-25-10-7510102575●
TM-4F-12-30-12-7512123075●
TM-4F-14-45-14-100141445100●
TM-4F-16-45-16-100161645100●
TM-4F-20-45-20-100202045100●

● In stock | ○ Make-to-order | Full range: Ø4.0–Ø20.0. Tolerance: D≤12 → 0~-0.020mm | D>12 → 0~-0.030mm. CAD/STEP files available.

Note: Optimized for side milling and shallow slotting in titanium & superalloys. Unequal pitch requires precise spindle alignment. Maintain flood coolant for optimal heat dissipation.

Material Compatibility & Machining Guide

WorkpieceGrade ExamplesSuitabilityNotes
Titanium AlloysTi-6Al-4V (Gr5), Ti-6242, Grade 23◎ ExcellentHigh strength & low thermal conductivity. Polished flutes prevent adhesive wear and built-up edge.
Nickel-Based SuperalloysInconel 718, 625, Waspaloy◎ ExcellentWork-hardening & abrasive. Unequal pitch eliminates chatter during heavy roughing.
Cobalt-Based AlloysStellite, Co-Cr-Mo◎ ExcellentHigh temperature strength. High bending strength substrate resists edge chipping.

◎ = Very Suitable | ✗ = Not Recommended | TM Series is engineered specifically for titanium & nickel-based superalloy challenges. For stainless steel machining, please use our SM Series for Stainless Steel. For general steel <55HRC, please use our PM Series for General Steel <55HRC.

CAM Setup & Titanium/Superalloy Parameter Guidance

Recommended Parameters (Ti-6Al-4V / Inconel)
  • ✅ Roughing: Vc = 15–25 m/min, fz = 0.03–0.05 mm/tooth, ap = 0.5D–1.0D, ae = 0.3D–0.5D
  • ✅ Semi-Finishing: Vc = 20–30 m/min, fz = 0.02–0.04 mm/tooth, ap = 0.3D–0.5D, ae = 0.1D–0.2D
  • ✅ Shallow Slot: Reduce Vc by 15%, use ap = 0.5D, maintain full width engagement
  • ✅ Use climb milling exclusively to control heat generation and improve surface integrity
Titanium-Specific Best Practices
  • ⚠️ Maintain flood coolant or high-pressure MQL to prevent thermal softening and work hardening
  • ⚠️ Avoid tool dwell at all costs. Titanium rapidly work-hardens if cutting stops during engagement
  • ⚠️ Ensure runout <0.005mm. Uneven load distribution accelerates wear on unequal pitch tools
  • ⚠️ Use trochoidal or adaptive roughing toolpaths to maintain constant chip load and reduce radial engagement

Typical Titanium & Superalloy Applications

✈️ Aerospace Structural Components

Roughing and semi-finishing of Ti-6Al-4V wing ribs, bulkheads, and landing gear components. High core strength handles interrupted cuts on complex geometries.

⚙️ Turbine Engine Parts

Side milling and pocketing of Inconel 718 blade roots, compressor casings, and turbine disks. Unequal pitch prevents chatter in thin-wall sections.

🏥 Medical & Surgical Implants

Pre-form roughing of orthopedic joints, dental abutments, and surgical instrument bodies. Polished flutes prevent material smearing on biocompatible alloys.

Factory Production & Quality Control

5 axis CNC grinding and polishing line for TM series end mills

Manufacturing Process & QA Steps

  • 🔹 Substrate: Premium micro-grain carbide (0.3–0.4μm) optimized for high transverse rupture strength in titanium cutting
  • 🔹 Grinding: 5-axis CNC maintains unequal pitch accuracy ±0.2° & runout <0.005mm for vibration-free performance
  • 🔹 Polishing: Automated rake/flank face polishing achieves Ra≤0.2μm surface finish, minimizing friction and adhesive wear
  • 🔹 Inspection: 100% laser diameter check, edge geometry verification, and aerospace-grade QC documentation
  • 🔹 Traceability: Each batch includes laser-etched SKU, grinding date, material certificate, and QC report. Available upon request.

Frequently Asked Questions

Titanium and nickel alloys generate high cutting forces and are prone to harmonic chatter. The TM series unequal tooth spacing disrupts resonant frequencies, significantly reducing vibration, preventing edge chipping, and extending tool life during heavy roughing and semi-finishing.

Mirror-polished surfaces drastically reduce friction and heat generation at the cutting interface. This minimizes adhesive wear (built-up edge), lowers cutting temperatures, and improves chip flow, which is essential for gummy, low-thermal-conductivity materials like Ti-6Al-4V and Inconel 718.

The 4-flute configuration is optimized for roughing to semi-finishing. It provides excellent core strength for aggressive material removal and stable semi-finishing. For final precision finishing, we recommend our TM 5-flute series which offers higher surface quality.

Flood coolant or high-pressure MQL is mandatory. Titanium has extremely low thermal conductivity, causing heat to concentrate at the cutting edge. Consistent coolant flow prevents thermal cracking, reduces work hardening, and flushes chips from the polished flutes.

Request Quote for TM Series Carbide 4 Flutes Flat End Mill

Specify your diameter range, material, and monthly volume. We respond with pricing, stock status within 24 hours.

ISO 9001 Certified Factory
Export Packaging Standard
Technical Support Available

🔒 Information used only for quotation. No third-party sharing.

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