DLTMJ550 series - Hardened Steels End Mill(48-55 HRC）

Literal statement:
End mill for die is widely used, can be installed and used in pneumatic or electric tools, production efficiency and durability than the grinding wheel and increase the number of times a file.

Features:

• High hardness, high toughness matrix materials,special angle design,special for hardened steels professing.
• For hardened steels (48-55 HRC) finishing.
• Recommended to use air or oil mist cooling.

Regular size:

4 Flute End Mills

2 Flute Corner Radius End Mills

4 Flute Corner Radius End Mills

Tool material composition:
1.Physical Properties:
A) Hardness greater than or equal to 92.6 HRA；
B) Density greater than or equal to 14.4g/cm³；
C) TRS greater than or equal to 3800 N/mm²；
D) Free of ETA phase condition；
E) No contamination by other materials；
F) Porosity = A02/ B00 / C00 ；
G) Uniform and consistent grain size. No grain size can be larger than specified.
H) Chromium carbide grain growth inhibitor only.
2.All the tools of production, coatings are used in Germany, Switzerland,  processing equipment；
3.It's proposed cutting less than 55HRC;

Coating:
Universal High Performance Coating AlCrSiN
Characteristics and Function
1、Productivity increase due to significantly higher cutting speed and feed for applications in a wide range of materials.Significantly enhanced productivity.
2、Particular design of structure brings good balance between toughness,thermo-shock stability and residual stress.

Operation parameter:

DLTMJ550 End mill for die Operation parameter:
DLTMJ550-S2  For Alloy Steel,Hardened Steel-Side Milling
Grades	Tool shape    S2	Workpiece Material	Cutting Depth (mm)	VC   m/min	Tool Diameter (mm)	2	4	6	8	10	12	16	20
DLTMJ550	Square、corner radius	Alloy steelquenched steel    HRC55	ap≤1D	120	Speed （min-1)	19100	9550	6730	4780	3820	3190	2390	1910
			ae≤0.05D		Feed speed （mm/min)	380	380	380	380	370	360	310	290

Prefer to more operation parameters ,you could free download the attachment.

Attention：
1、Make sure work piece and machine are stable and use a precision holder.
2、Please adjust the speed,feed and cutting depth according to actual cutting conditions.
3、The milling conditions are for an end mill where the tool overhang length is less than 4*D(mill dia). When the tool overhang length is longer, please adjust the speed,feed and cutting depth.

Relative End mill for die

DLTMJ600 series-H Optimized End Mill for Hardened Steels
DLTMJ650 series - H Hardened Steels End Mill(65 HRC)