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EDT

Product catalog summary

Overview: The document provides technical specifications and safety guidelines for the Carbide Thread Mill series by Mitsubishi Hitachi Tool Engineering, Ltd. It includes details on the product's features, applications, and recommended usage conditions.

Specifications: The Carbide Thread Mill series is designed for threading various materials, including cast iron, carbon steel, alloy steel, tool steel, pre-hardened steel, and hardened steel. The tools are available in diameters ranging from φ1.4 to φ15.4, covering 124 items.

Safety Guidelines:

Handling: Exercise caution when removing tools from packaging to avoid injury from sharp edges.
Mounting: Ensure tools are free from defects and securely mounted before use.
Usage: Confirm tool dimensions and rotation direction. Adjust cutting conditions based on material and machine rigidity. Use safety equipment to prevent injury from flying debris.
Regrinding: Perform regrinding at appropriate times to prevent tool breakage. Follow local regulations for handling cobalt and its compounds.

Features and Technology:

Tools are designed to reduce the risk of breakage and improve chip evacuation.
Thread milling can be performed without synchronizing rotation and feed rates, similar to end mills.
Tools can handle right-hand, left-hand, and fine thread milling by changing the NC program.
Minimal incomplete threads allow for milling to the bottom of shallow holes.

Coating Technology: The new PN coating offers superior adhesion and wear resistance, enhancing tool stability and heat resistance.

Applications: Suitable for parts processing and mold making, the tools are effective in threading hardened steels and performing both drilling and threading simultaneously.

Recommended Cutting Conditions: The document provides a detailed table of cutting conditions based on material type and tool specifications. Adjustments should be made according to actual machine conditions.

Contact Information: The document lists contact details for Mitsubishi Hitachi Tool Engineering offices worldwide, including Japan, Europe, the USA, China, Thailand, and India.

Specifications and Product Details: The document provides detailed specifications for various thread milling tools, including item codes, nominal diameters, pitch, and recommended pilot hole diameters. It covers both metric and unified threads, with specific tools designed for different materials and threading conditions.

Cutting Conditions and Performance: Various cutting conditions are outlined for different materials such as SKD11, HAP40, CENA1, SUS304, Inconel 718, and Aluminium alloy A7075. The document compares the performance of Epoch Thread Mills with conventional methods, highlighting the number of holes threaded before tool damage occurs. For instance, the Epoch Thread Mill can thread up to 300 holes in certain materials without reaching tool life limits.

Recommendations and Best Practices: The document emphasizes the importance of using the correct pilot hole diameters and cutting conditions to achieve optimal performance. It suggests using water-soluble cutting fluids for better surface quality and highlights the need for proper tool diameter correction based on material and wear conditions.

Technical Data and Field Performance: Field data for the Epoch D Thread Mill is provided, showcasing its ability to machine up to 600 holes without reaching tool life limits. The document also discusses the challenges of threading difficult materials like titanium alloys and superalloys, offering solutions such as reduced feed rates and higher cutting speeds to prevent tool breakage.

Troubleshooting and Cautions: Guidance is provided on handling tool deflection, breakage, and dimensional accuracy issues. The document advises on adjusting feed rates and cutting speeds to improve conditions and prevent chip clogging.

Conclusion: The document serves as a comprehensive guide for selecting and using thread milling tools effectively, with detailed specifications, cutting conditions, and best practices to ensure high-quality machining results.

Catalog excerpts

Carbide Threading tool ET-PN EDT-TH EDT-m-m Carbide Thread Mill series Mitsubishi Hitachi Tool Engineering, Ltd. |~N~ew Product News | No.1305E-3 | 201 7-6 |

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Features Applications Applicable range Cast iron Carbon steel Alloy steep Tool steel Pre-hardened Hardened steel steel 45~55HRC Mold making ET-PN EDT-TH, EDT-(N)PT-ATH Parts processing Features of Epoch Thread Mill ・Tough and strong edge design provides threading of hardened steels. st ・Tip shape that reduces cutting resistance suppresses tool bending. ・Drastically reduces tool breakage, Reduces risk a particular problem New coating with excellent adhesion and wear resustance ecnatsuser raew dna noisehda tnellecxe htiw gnitaoc weN ecnatsuser raew dna noisehda tnellecxe htiw gnitaoc weN ecnatsuser...

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Te c h n o l o g y Reduces the risk of breaking off inside By using a tool with a diameter smaller than the inside diameter of the thread, cutting chips are smaller and chip evacuation is improved. The risk of the tool breaking off inside the hole is reduced as a result. One tool - various types of thread milling Right hand, left-hand and fine thread milling can be performed by just changing the NC program. The nominal diameters of the coarse threads and fine threads that can be processed with the same tool are different. (Example: For ET-1.25-16-PN, coarse thread is M8 × P1.25 and fine thread...

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: Stocked items, □: Stocked by specified distributor. Contact with our sales department, ^For information abo

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©Epoch Thread Mill Is an only for threading the inside of holes, ©The above cutting conditions are for the nominal diameters stated in the table, Cutting conditions for other nominal diameters should be calculated taking into consideration the cautions on use (p,15), ©The machinery should be a machining center equipped with NC (numerical control) equipment having a helical interpolation function, ©The feed rate stated in the above conditions table is the feed rate at the tool center during threading, In addition, the per-tooth feed rate is the numerical value at the cutting point, ©Since there...

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EDT-(U) . - . -TH .J : Stocked Items, □: Stocked by specified distributor. Contact with our sales department, *^For information ab

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©Epoch D Thread Mill Is capable of simultaneous boring and threading, ©The above cutting conditions are for the nominal diameters stated in the table, Cutting conditions for other nominal diameters should be calculated taking into consideration the cautions on use (p, 15). ©The machinery should be a machining center equipped with NC (numerical control) equipment having a helical interpolation function, ©The feed rate stated in the above conditions table is the feed rate at the tool center during thread milling, In addition, the per-tooth feed rate is the numerical value at the cutting point, ©Since...

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Thread Mill fo PT,NPT for PT,NPT for PT,NPT T,NPT N Threads Th ead Threads Left-hand edge θn φDs 1 incomplete thread and 2 complete threads Item code Pilot hole Pilot hole required not required (pilot hole diameter) Reference Under neck Overall tool dia. length length R2 Dc L Nominal diameter correction amount Nominal diameter correction amount Item code Neck angle θ n： 1.7° ※The neck angle (θ n) of EDT-PT1(NPT1)-45-ATH is 0° (straight neck). Pilot hole Pilot hole required not required (pilot hole diameter) Reference Under neck Overall tool dia. length length R2 Dc L ●：Stocked Items. Nominal...

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Work material For other materials, please ask our local sales office or call the toll-free Technical Support line at 0120-134159. [Nofa ©Epoch D Thread Mill Is capable of simultaneous boring and threading, ©The above cutting conditions are for the nominal diameters stated in the table, Cutting conditions for other nominal diameters should be calculated taking into consideration the cautions on use (p,15), ©The machinery should be a machining center equipped with NC (numerical control) equipment having a helical interpolation function, ©The feed rate stated in the above conditions table is the...

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Te c h n i c a l d a t a Field data of Epoch Thread Mill 01 Threading of hardened steels (M4×P0.7) Cutting conditions Work material：SKD11(60HRC) Tool：ET-0.7-8-PN n= 4,620min-1(vc=45m/min) v f =62mm/min（f z =0.015mm/t） Threading depth：8mm Blind hole Pilot hole dia.×Pilot hole depth： φ3.4 ×12mm Coolant：Air-blow Epoch Thread Mill Damaged on 10th hole Threading hole count (holes) Epoch Thread Mill after threading 50 holes Conventional after threading 10 holes. Machining up to 50 holes. NOT reached tool life. 02 Threading of sintered HSS material (M4×P0.7) Cutting conditions Work material：HAP40(64HRC)...

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05 Threading of superalloy (M6xP1) Culling conditions'll/ Work material : inconel 718(40HRC) Tool: et-i.0-12-pn n =2,420min-1(vc=35m/min) vf=56mm/min (fz=0.025mm/t) Threading depth : 12mm Blind hole Pilot hole dia.xPilot hole depth : 05.1x15mm Coolant : Water-base it is possible to thread superalloy which is difficult to tapping. 06 Threading of non-ferrous (Aluminium alloy A7075, Acrylic resin) (M6xP1) Work material : Aluminium alloy A7075, Acrylic resin Tool : ET-1.0-12-PN n=14,500min-1(vc=210m/min) vf=540mm/min (fz=0.04mm/t) Threading depth : 12mm Blind hole Pilot hole dia.xPilot hole depth...

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Te c h n i c a l d a t a Field data of Epoch D Thread Mill Simultaneous threading and drilling on hardened steels (M8×P1.25) Cutting conditions Work material：SKD11(Improved)(62HRC) Tool：EDT-1.25-16-TH n =2,060min-1(vc=40m/min) v f =47mm/min z =0.025mm/t）（f Threading depth：15mm Blind hole Coolant：Air-blow Epoch D Thread Mill Tool condition of Epoch D Thread Mill after machining 30 holes Wear condition is good with no chipping or damage! Threading hole count (holes) Simultaneous threading and drilling on hardened steels (M8×P1.25) Cutting conditions Work material：SKD61(45HRC) Tool：EDT-1.25-16-TH ...

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