Home>Products>Milling>Solid Carbide End Mills>Carbide End Mills for Difficult Materials

TM Series 4-Flute Carbide Corner Radius End Mill

Engineered for stable side milling, shallow slotting, and roughing-to-semi-finishing of titanium alloys & nickel-based superalloys. R-corner protection, unequal pitch design, and mirror-polished U-flutes deliver extended tool life and chatter-free edge profiling.

Solid Carbide 4 Flutes Unequal Pitch Polished U-Flutes R-Corner Protection Ti/Ni Optimized
View Specifications Request Bulk Pricing
TM Series 4-Flute Carbide Corner Radius End Mill
TM Series 4-Flute Carbide Corner Radius End Mill
TM series 4 flute carbide corner radius end mill for titanium and superalloys unequal pitch polished
Precision radius shoulder profiling on titanium

Procurement & Commercial Terms

MOQ1 pc (sample/stock) | 50 pcs (OEM/bulk)
Lead Time3–5 days (standard stock) | 10–15 days (custom/OEM)
InventoryR0.2–R2.0 in stock. R2.5–R3.0 available on short notice.
Custom OptionsExtended cutting length, 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 Radius Profiling

R-Corner Stress Distribution

High-precision seamless connection between nose and peripheral cutting edge distributes load evenly. Prevents micro-chipping at the tool juncture during interrupted cuts in abrasive titanium and nickel alloys.

Mirror-Polished U-Flutes

Rake and flank faces polished to Ra≤0.2μm. Lowers friction coefficient by ~30%, reduces cutting heat, and prevents adhesive wear/built-up edge critical for gummy superalloys like Inconel 718.

Unequal Pitch Vibration Control

Irregular tooth spacing disrupts harmonic resonance frequencies. Eliminates chatter marks on radius shoulders and thin-wall sections, enabling stable roughing-to-semi-finishing without tool deflection.

4-Flute Rigidity & Efficiency

Optimized flute count balances chip evacuation space with core rigidity. Delivers higher feed rates per minute during shallow slotting and side milling while maintaining precise radius geometry.

TM-4R Corner Radius Dimensions (Standard & Long)

ModelD (mm)R (mm)d (mm)H (mm)L (mm)Stock
TM-4R-1-0.2-3-4-5010.24350●
TM-4R-1.5-0.2-4.5-4-501.50.244.550●
TM-4R-2-0.2-6-4-5020.24650●
TM-4R-2-0.5-6-4-5020.54650●
TM-4R-2.5-0.2-6-4-502.50.24650●
TM-4R-2.5-0.5-7.5-4-502.50.547.550●
TM-4R-3-0.2-9-3-5030.23950●
TM-4R-3-0.2-9-4-5030.24950●
TM-4R-3-0.5-9-3-5030.53950●
TM-4R-3-0.5-9-4-5030.54950●
TM-4R-3-0.5-12-3-7530.531275●
TM-4R-3-0.5-12-3-10030.5312100●
TM-4R-3-1-12-3-753131275●
TM-4R-3-1-12-3-10031312100●
ModelD (mm)R (mm)d (mm)H (mm)L (mm)Stock
TM-4R-4-0.2-10-4-5040.241050●
TM-4R-4-0.5-10-4-5040.541050●
TM-4R-4-0.5-16-4-7540.541675●
TM-4R-4-0.5-20-4-10040.5420100●
TM-4R-4-1-10-4-504141050●
TM-4R-4-1-16-4-754141675●
TM-4R-4-1-20-4-10041420100●
TM-4R-5-0.2-13-5-5050.251350●
TM-4R-5-0.2-13-6-5050.261350●
TM-4R-5-0.5-13-5-5050.551350●
TM-4R-5-0.5-13-6-5050.561350●
TM-4R-5-0.5-18-5-7550.551875●
TM-4R-5-0.5-20-5-10050.5520100●
TM-4R-5-1-13-5-505151350●
TM-4R-5-1-13-6-505161350●
TM-4R-5-1-18-5-755151875●
TM-4R-5-1-20-5-10051520100●
TM-4R-6-0.2-15-6-5060.261550●
TM-4R-6-0.2-25-6-7560.262575●
TM-4R-6-0.5-15-6-5060.561550●
TM-4R-6-0.5-25-6-7560.562575●
TM-4R-6-0.5-30-6-10060.5630100●
TM-4R-6-1-15-6-506161550●
TM-4R-6-1-25-6-756162575●
TM-4R-6-1-30-6-10061630100●
ModelD (mm)R (mm)d (mm)H (mm)L (mm)Stock
TM-4R-8-0.2-20-8-6080.282060●
TM-4R-8-0.2-25-8-7580.282575●
TM-4R-8-0.5-20-8-6080.582060●
TM-4R-8-0.5-25-8-7580.582575●
TM-4R-8-0.5-35-8-10080.5835100●
TM-4R-8-1-20-8-608182060●
TM-4R-8-1-25-8-758182575●
TM-4R-8-1-35-8-10081835100●
TM-4R-10-0.2-25-10-75100.2102575●
TM-4R-10-0.5-25-10-75100.5102575●
TM-4R-10-0.5-40-10-100100.51040100●
TM-4R-10-1-25-10-75101102575●
TM-4R-10-1-40-10-1001011040100●
TM-4R-10-2-25-10-75102102575●
TM-4R-12-0.2-30-12-75120.2123075●
TM-4R-12-0.5-30-12-75120.5123075●
TM-4R-12-0.5-45-12-100120.51245100●
TM-4R-12-1-30-12-75121123075●
TM-4R-12-1-45-12-1001211245100●

● In stock | ○ Make-to-order | Full range: D3.0–D16.0 with R0.2–R3.0. Tolerance: D≤12 → 0~-0.020mm | D>12 → 0~-0.030mm. R → ±0.01mm. CAD/STEP files available.

Note: Optimized for radius shoulder profiling, edge blending, and shallow slot milling in titanium & superalloys. Polished U-flutes require consistent coolant/MQL flow to maintain chip evacuation efficiency.

Material Compatibility & Radius Profiling Strategy

WorkpieceGrade ExamplesSuitabilityRadius Profiling Notes
Titanium AlloysTi-6Al-4V (Gr5), Ti-6242, Grade 23◎ ExcellentLow thermal conductivity requires polished flutes to mitigate heat. R-corner prevents stress concentration on blended edges.
Nickel-Based SuperalloysInconel 718, 625, Waspaloy◎ ExcellentWork-hardening tendency minimized by unequal pitch. Polished U-flutes prevent adhesive wear during continuous side milling.
Cobalt-Based AlloysStellite, Co-Cr-Mo◎ ExcellentHigh abrasion resistance handled by premium micro-grain substrate. R-corner extends tool life on complex radius transitions.

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

CAM Setup & Titanium/Superalloy Radius Parameter Guidance

Recommended Parameters (Ti-6Al-4V / Inconel)
  • ✅ Radius Shoulder Finishing: ae = 0.02D–0.04D, ap = 0.3D–0.5D, Vc = 20–30 m/min
  • ✅ Edge Blending: Use ae = 0.01D–0.02D, ap = 0.1D–0.2D for seamless R-transitions
  • ✅ Shallow Slotting: Maintain ae ≤ 0.6D, ap = 0.5D, use trochoidal paths for constant engagement
  • ✅ Use climb milling exclusively to control heat generation and improve surface integrity
Radius-Specific Best Practices
  • ⚠️ Maintain flood coolant or high-pressure MQL to prevent thermal softening and work hardening
  • ⚠️ Avoid tool dwell at radius transitions. Titanium rapidly work-hardens if cutting stops during engagement
  • ⚠️ Ensure runout <0.005mm. Uneven load distribution accelerates wear on the R-corner juncture
  • ⚠️ For radius corner slots, use arc lead-ins to avoid shock loading the cutting edge

Typical Titanium & Superalloy Radius Applications

✈️ Aerospace Structural Brackets

Radius shoulder profiling of Ti-6Al-4V wing ribs and bulkheads. Unequal pitch eliminates chatter, preserving thin-wall dimensional tolerance and R-blend accuracy.

🏥 Medical Implant Edge Blending

Precision radius profiling of orthopedic joints and dental abutments. Polished U-flutes prevent material smearing on biocompatible alloys for Ra≤0.4μm finishes.

⚙️ Turbine & Engine Components

Radius corner profiling of Inconel 718 blade roots and compressor casings. R-corner design prevents stress concentration during heavy side milling cycles.

Factory Production & Quality Control

5 axis CNC grinding and automatic polishing line for TM corner radius end mills

Manufacturing Process & QA Steps

  • 🔹 Substrate: Premium micro-grain carbide (0.3–0.4μm) optimized for high transverse rupture strength in exotic alloy radius profiling
  • 🔹 Grinding: 5-axis CNC maintains unequal pitch accuracy ±0.2° & radius tolerance ±0.01mm at corner transition
  • 🔹 Polishing: Automated U-flute 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

Sharp 90° corners concentrate cutting forces and rapidly degrade in abrasive, work-hardening alloys like Ti-6Al-4V and Inconel. The TM series R-corner distributes cutting load evenly, prevents micro-chipping at the tool juncture, and significantly extends tool life during side milling and shallow slotting.

Titanium's low damping capacity amplifies harmonic vibrations during pocketing and side milling. The TM-4R unequal tooth spacing disrupts resonant frequencies, eliminating chatter marks, reducing spindle load, and enabling stable roughing-to-semi-finishing transitions without tool deflection.

Superalloys like Inconel 718 are highly prone to adhesive wear and built-up edge (BUE). Mirror-polished rake and flank faces reduce the friction coefficient by ~30%, lower cutting temperatures, and ensure smooth chip evacuation, preventing material welding and premature edge failure.

Maintain constant chip load using arc toolpaths on radius shoulders, ensure adequate coolant/MQL flow, and use climb milling exclusively. The TM series unequal pitch geometry inherently reduces cutting forces, minimizing heat and plastic deformation that trigger work hardening.

Request Quote for TM Series 4-Flute Carbide Corner Radius 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.

Related Products

Explore our curated selection of complementary tools

TM Series Carbide 2 Flutes Ball End Mill

TM Series Carbide 2 Flutes Ball End Mill

Solid carbide ball nose end mill optimized for titanium & superalloys. High toughness substrate, pol···

View Specs
TM Series Carbide 5 Flutes Flat End Mill

TM Series Carbide 5 Flutes Flat End Mill

Optimized for high-rigidity side milling and semi-finishing in titanium alloys & superalloys. Anti-v···

View Specs
SM Series Carbide Ball Nose End Milll 2 Flute

SM Series Carbide Ball Nose End Milll 2 Flute

Optimized for 3D contour milling and cavity profiling in stainless steel 304/316. Anti-vibration, po···

View Specs

Technical Resources

Explore related tools and machining guides to improve efficiency and tool life

Benefits of Using DNMG Carbide Inserts in Roughing and Finishing

Learn the top benefits of using DNMG carbide inserts for both roughing and finishing operations. Discover how these versatile inserts improve CNC effi···

2025-07-10 40 views
What are tapered drill bits for?

Discover what tapered drill bits are used for and how they enhance drilling precision in woodworking, metalworking, and industrial applications. Explo···

2025-07-02 90 views
What is the difference between HSS and carbide mill?

Learn the key differences between HSS and carbide end mills, including hardness, speed, cost, and best-use scenarios. Find out which type fits your ma···

2023-03-30 569 views

Ready to Improve Your Machining Performance?

Contact our experts today for a free quote or technical consultation.

Get a Free Quote