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Aluminium Alloy - Coggle Diagram

- - - - Affects wear resistance and how long the tool lasts before replacement
    - - Some materials allow higher speeds without excessive wear
    - - Determines how smooth the final surface is
    - - Influences chip control and minimizes built-up edge (BUE)
  - - - for
        
        High cutting speed
        
        Good balance of cost and performance
        
        Minimal adhesion issues
  - - - Effect
        
        Affects chip flow and cutting forces. A positive rake reduces cutting resistance and heat generation.
      - Selection
        
        12°-25°
    - - Effect
        
        Prevents tool rubbing against the workpiece. Higher angles reduce friction and heat.
      - Selection
        
        8° to 12°
    - - Effect
        
        Larger radius improves surface finish but increases cutting forces. Smaller radius is better for fine finishing.
      - Selection
        
        0.4 mm for finishing, 0.8 mm for roughing
    - - Effect
        
        A sharper edge reduces cutting forces and BUE but may wear faster.
      - Selection
        
        Sharp cutting edge to prevent BUE
    - - Effect
        
        Controls how chips are removed and affects tool engagement.
      - Selection
        
        Large helix angle (20°–30°) for smooth cutting.
  - - - In general
        
        reduce wear, lower friction, and improve tool life
    - - Uncoated Carbide
        
        Effect
        
        Prevents aluminum adhesion, provides a sharp edge
  - - - In general
        
        controlling chip shape and preventing long, stringy chips that can damage the surface finish and clog the tool.
    - - Light Chip Breaker
        
        Effect
        
        Helps in breaking soft, continuous chips
- - - - High thermal conductivity.
      - Aluminum dissipates heat quickly, so higher feed rates reduce heat buildup and prevent tool wear.
      - Prevents built-up edge (BUE).
      - Cutting too slow allows aluminum to stick to the tool, causing poor surface finish and tool wear.
      - Maximizes material removal rate (MRR).
      - High feed rates help in achieving faster machining times, improving productivity.
      - Works well with high spindle speeds.
      - Aluminum can be machined at high spindle speeds and high feed rates without excessive tool wear.
  - - - Soft & Ductile Material → Aluminum allows deeper cuts without excessive tool wear.
      - Higher Material Removal Rate (MRR) → Increases productivity.
      - Efficient Heat Dissipation → Aluminum's high thermal conductivity prevents overheating.
      - Reduces Cutting Passes → Fewer machining cycles save time.
  - - - Soft & Ductile Material → Aluminum can handle high speeds without excessive tool wear.
      - Prevents Built-Up Edge (BUE) → Reduces aluminum sticking to the tool.
      - Efficient Chip Evacuation → High speeds create thinner chips and improve cooling.
      - Better Surface Finish → Reduces roughness and improves accuracy.
      - Works Well with Carbide & Coated Tools → These tools perform best at high speeds.
  - - - Soft & Ductile Material → Aluminum allows high cutting speeds without excessive wear.
      - High Thermal Conductivity → Quickly dissipates heat, reducing tool damage.
      - Prevents Built-Up Edge (BUE) → Higher speeds help avoid material sticking to the tool.
      - Better Surface Finish → High speeds ensure smoother cuts.
      - Works Well with Carbide Tools → Carbide and coated tools perform best at high speeds.
- - - - Excessive heat accelerates tool wear, reducing tool life.
      - Aluminum sticks to the tool at high temperatures, causing rough surfaces.
      - Thermal expansion can lead to size variations in the workpiece.
      - High heat can cause long, sticky chips that affect cutting efficiency.
      - Heat-induced softening can degrade the surface quality.
    - - Thermocouples
        
        Embedded in the tool or workpiece to measure direct heat
      - Infrared (IR) Thermography
        
        Non-contact method using IR cameras to capture heat distribution
      - Pyrometers
        
        Optical devices that measure temperature from a distance
      - Tool Wear Analysis
        
        Indirect method where temperature is estimated based on wear patterns
  - - - Measures cutting force in real-time.
    - - Attached to the tool or machine to detect force variations.
    - - Measures rotational cutting force in drilling and milling.
    - - Uses motor power readings to estimate cutting force.
    - - Measures the thickness of the chip to estimate force indirectly.