FAQ
LNMU0303
China Lizhou Hard Alloy Source Factory
Product Name: milling insert
Coating : PVD
Material：Tungsten steel
Classification :
Milling Insert Hot Products
keyword：
lizhou
I. Analysis of LNMU0303ZER milling insert
L: Usually indicates the shape of the insert (e.g., 80° rhombus, circle, etc.), commonly used codes:
C=80° rhombus, T=triangle, R=circle, L may be a specific shape of a certain brand (e.g., long blade or low cutting force design).
N: May indicate the back rake angle (e.g., N=0°, P=11°, A=3°, etc.).
M: Usually comes with tolerance grade (e.g., M=medium tolerance, G=general chip breaker).
U: May indicate special functions of the chip breaker type (e.g., internal cooling holes, enhanced cutting edge or optimized material application)
03: Usually the inscribed circle diameter (IC) or cutting edge length (e.g., 3.97mm).
03: May indicate the insert thickness (S) (e.g., 3.18mm).
(Note: If the segment is "03-03", it may correspond to the inscribed circle diameter and thickness respectively.)
Z: Indicates the main rake angle, scraping blade: other 20°
E: Indicates the cutting edge type code: 2-15°
R: Cutting direction: right-hand cutting
II Characteristics of LNMU0303ZER high-speed milling inserts
Smaller cutting depth and larger feed rate: The insert profile is optimized for high-speed milling, allowing for higher feed rates (fz=0.3-0.8mm/z), smaller cutting depths (ap=0.5-2mm), and significantly improved metal removal rate (Q)
Hard metal substrate: High toughness substrate material (e.g., ultrafine grain hard metal), balancing impact toughness and wear resistance, extending tool life.
Enhanced cutting edge treatment: Cutting edge chamfering or dulling treatment (E code) reduces the risk of chipping and adapts to intermittent cutting (e.g., rough machining of cast surface).
III Applicable materials:
Steel rough machining: Larger cutting depth (ap=3-5mm), higher feed rate (fz=0.15-0.3mm/z).
Cast iron intermittent cutting: Impact-resistant design, reducing chipping risk.
Stainless steel semi-finishing: Sharp blades improve surface quality, and coatings extend tool life.
IV Typical applications:
Rough milling of mold cavities
Machining of automotive engine housings
Mass production of general mechanical parts
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