Square End Mill – U Series For Universal Steel

Flat End Mill – U Series For Universal Steel

A practical, efficient tool solution for steel machining. Ideal for mold manufacturing and general machinery, it covers most semi-finishing to finishing processes for steel with fewer tool types, supporting efficient production and cost reduction.

Basic Tool Type: Flat-End Mill

• Core Functions: 2D contour cutting, flat surface machining, grooving;
• Key Features: High edge strength, excellent for machining 90° vertical sidewalls and corner cleaning;
• Analogy: Similar to a painter’s brush, it efficiently handles large-area flat surfaces with sharp, clear edges.

U Universal Steel Series: Core Analysis

• Name Meaning:
  • “U”: Refers to U-shaped/large chip pockets. Unlike aluminum-specific tools (focused on maximum chip capacity), U-flutes for steel prioritize chip evacuation and breaking;
  • “Universal Steel”: Specialized for steel workpieces (mold steel, alloy steel, stainless steel, etc.), balancing roughing, semi-finishing, and finishing needs with strong versatility.
• Design Features & Functions:
  • Tough Tool Body: Made of high-toughness, high-strength cemented carbide. Resists large cutting forces and impacts during steel machining, preventing edge chipping and breakage;
  • Advanced Coating (Core Tech): Adopts TiAlN/AlTiN coatings. Features high hardness (resists wear from carbides in steel), thermal stability (maintains hardness at 800-900°C, critical for steel machining), and thermal barrier effect (isolates cutting heat to protect the tool body);
  • Optimized Flute & Geometry: Moderate rake angle (balances edge strength and cutting smoothness), micro-passivated/landed edge (prevents micro-chipping), U-shaped flutes (curls and breaks steel chips into “C” shapes, avoiding clogging and wrapping);
  • Universal Flute Count: Common 4-flute design. Balances roughing stability and finishing surface quality, covering semi-roughing to finishing processes.
• Application Scenarios:
  • Core Scenario: Mold Manufacturing – Semi-finishing/finishing of mold components (cores, cavities, sliders) made of mold steel (P20/718/H13/S136), reducing tool inventory and changeover frequency;
  • Regular Scenario: General Machinery – Milling of flat surfaces, sidewalls, and grooves for structural steel (45# steel, 40Cr);
  • Special Scenario: Stainless Steel Machining – Suitable for austenitic stainless steel (304/316), handling work hardening with its tough body and optimized flutes.

Important Notes:

• Positioning: Balanced, universal tool (not for extreme performance – choose roughing tools for heavy roughing, dedicated finishing tools for ultra-high surface finish);
• Specialization: Exclusively for steel, stainless steel, and cast iron. Strictly forbidden for soft metals (aluminum, copper) – may cause chip clogging and adhesion, leading to machining failure.

Common Product Data

product information