导航切换

美奢锐新材料有限公司

导航切换

The Case of Dr. Reay

The rear knife face is worn

why
Too fast wear will result in poor or poor surface quality.
Excessive cutting speed
Insufficient wear resistance
Feed FZ is too low
 
The solution
Reduce the cutting speed VC
Choose a more durable brand
Increase the feed fz
  • why
    Excessive wear leads to short tool life.
    vibration
    Chips are cut again
    Burr forms on the parts
    Poor surface quality
    Generate heat
    Too much noise
    The solution
    Increase the feed fz
    Down milling
    Compressed air is used to effectively remove debris
    Check recommended cutting parameters
    • why
      Uneven wear that causes damage to fillet corners.
       
      Tool to beat
      vibration
      Short tool life
      Poor surface quality
      The noise is big
      Excess radial force
      The solution
      • Crescent pits wear away

        why
        Excessive wear will weaken the cutting edge. Damage to the trailing edge of the cutting edge can result in a surface quality
         
        In quantity.
        Diffusion wear is caused by high cutting temperature on the front cutter face
         
        The solution
        Select the AL203 coating grade
        The groove shape of the positive front Angle blade is selected
        First, reduce the cutting speed to reduce the temperature, and then reduce the feed
         
        • Plastic deformation

          why
          Cutting edge plastic deformation, sag or after cutter face depression, resulting in poor chip control,
          Poor surface quality and blade rupture.
          Excessive cutting temperature and pressure
          The solution
          Opt for a more durable (hard) brand
          Reduce the cutting speed VC
          Lower feed fz
           
          • Collapse edge


            why
            The uncut portion of the cutting edge is damaged due to chip impact. The upper cutting face and branch of the blade
            Braces can be damaged, resulting in poor surface texture and excessive rear surface grinding Loss.
            The chip folds back to the cutting edge

            The solution
            Choose a brand with greater toughness
            Choose a blade with a stronger cutting edge
            Increase the cutting speed VC
            Select a positive front corner groove
            Reduce the feed at the beginning of cutting
            Improved stability
             
            • why
              Fine chipping of the cutting edge leads to poor surface quality and excessive wear of the rear surface.
              Brand is too fragile
              The groove of the blade is too weak
              The devolop tumor
               
              The solution
              Choose a brand with greater toughness
              Choose a blade with higher groove strength
              Increase the cutting speed VC or choose positive front Angle groove
              Reduce the feed at the beginning of cutting
               

              Groove wear

              why
              Groove wear can cause surface quality degradation and cutting edge fracture.
              Work hardened material
              Skin and rust
              The solution
              Reduce the cutting speed VC
              Choose a brand with greater toughness
              Increase the cutting speed VC
               

               

              cracking

              why
              Small cracks perpendicular to the cutting edge will cause blade fragmentation and surface quality degradation.
              Thermal cracks due to temperature changes are caused by:
               
              Continuous processing
              Variable cutting fluid supply
               
              The solution
              Choose a toughness brand that can withstand thermal shock
              Cutting fluid should be supplied in abundance or not at all.
               

              The devolop tumor (B.U.E)

              why
              The chip nodules will cause the surface quality to be reduced and the cutting edge will be caused when the chip nodules are removed
              Collapse.
              Cutting zone temperature is too low.
              Extremely viscous materials, such as mild steel, stainless steel, and aluminum.
              The solution
              Increase cutting speed
              Replace to a more suitable blade groove

              why
              The workpiece material is bonded to the cutting edge because:
              Low cutting speed VC
              Low feed fz
              Negative rake Angle cutting groove
              Poor surface quality
              The solution
              Increase the cutting speed VC
              Increase the feed fz
              Select a positive front corner groove
              Use oil mist or cutting fluid