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Camshaft delivers the motion to valves by changing the movement of crankshaft into the reciprocation of tappet or rocker arm and adjusts valve's opening and shutting. Cam profile should equivalent to the lift of valves and the cam shape is complicated and precise, and so the characteristics of Cam and Shaft requires different material.

Camshaft Technology

  • 1. Reliability and Quality Target
    • Improvement in the wear resistance of
      Cam and Journal.
    • High strength material
    • Light weight
    • Simplification of lubricating device and
      effectiveness to the utmost.





  • 2. Process
  •   Chilled Camshaft     High frequency Hardening Camshaft  
    Process Casting Casting+high frequency heat treatment
    Cam surface hardening Chilling(chiller) high frequency heat treatment+Quenching
  •  
  • 3. Camshaft Molding Process
    • Shell Molding Process
    • Cold Box Molding Process
  •  
  • 4. R&D



    • Fluid Flow Simulation
    • Flow-3D
      (Fluid & Solidification Simulation Program)

Kinds of YPR Camshaft material

  • Solid Camshaft
    • Size(length) : below 630mm
    • Development period : 2 Months
  • Hollow Camshaft
  • END Block Type
    • Size(length) : below 630mm
    • Material of Core : Shell
    • Development period : 3 Months
  • Straight Through Type
    • Size(length) : below 630mm
    • Material of Core : Quartz Tube Steel Pipe
    • Development period : 3 Months

Patent(no.0226044); Development of Hollow Camshaft by using Stell Pipe