Why We're Different
How we process a cam shaft

          Ivan Tighe Engineering has prided it's self over the last 36 years for it's ability to be flexible when manufacturing our products. Although we have guidelines for producing our customer's needs in camshafts we also have the ability to manufacture items that are not always a standard line. Eg

  • " Silver Ghost - Rolls Royce
  • " Autounion 6 cylinder

          With our modern equipment and technology such as the 'Cam Doctor' and the 'CNC Lathe' we are able to re-create or produce most camshafts. You name it we can manufacture it, even vintage cams from both motorcars and motorcycles. We not only do we work on standard vehciles but also larger diesel cams for example 'Icofrancine' and 'Lombadine'.
At Ivan Tighe Engineering we have made use of the technology provided to us in recent years, some of these include.

  • Induction Hardening of all new camshafts. This process of heat treatment is when a camshaft is passed through a high frequency coil, which quickly heats the camshaft to approximately 850 degrees celsius and is then quenched in oil.
  • Tufriding on cast iron camshafts reduces coefficient friction by producing a thin carbide layer on the surface of the camshaft.
" Nitriding on regrind steel camshafts is a process of retaining the steel camshaft at a temperature of up to 500 degrees celsius. This gives the steel a higher wearing resistance, higher fatigue resistance and improved corrosion resistance. Only steel with a percentage of nickel will nitride.

" Cryogeneticlal Treatment is a process used for roller cams and some steel camshafts. This process puts the camshafts into a controlled 'cryogenic' tank that 'soaks' the cams at a temperature of minus 198 degrees celsius for approximately 10 hours. This allows the cams to have a longer working life; lowers residual stress and wear resistance is enhanced. This application is for extreme uses only.

" Parkerizing is not a heat treatment like the treatments mentioned above. This is done on all cast iron camshafts to place a phosphate and graphite surface on the camshaft that allows it to aid in the 'running' in procedure.

 

          Ivan Tighe Engineering are proud to say that we explore the ever changing technical developments being made each day in our industry to ensure our valued customers are informed of new improvements made.

          With many years of knowledge and experience along with new technologies Ivan Tighe Engineering has not been out classed by new competitors in the industry. We at Ivan Tighe Engineering firmly believe that our quality products, service and manufacturing are second to none in our industry.

How We Process a Cam Shaft

 

  • Steel Billet
  • Specifications determined by 'spec' sheet.
  • Blank bar cut to length.
  • Bar then turned in CNC Lathe.
  • Pins, threads, tapping or milling put on billet.
  • Billet is then restraightened.
  • Placed on Repco or Sampson grinder for 'rough grind'.
  • Any drilling's are completed as required.
  • Billet is restraightened again.
  • Camshaft is then induction hardened.
  • Stress relieving process is preformed.
  • Camshaft is re straightened.
  • Grinding of journals is completed.
  • Gears are heat treated if required.
  • Camshaft straightened again if required.
  • Gears are cut so both journals and gears are relevant to each other.
  • Crack testing is performed on camshaft.
  • Final ground completed on camshaft.
  • Crack testing is again performed.
  • Camshaft is 'Cam Doctored' to check final specifications.
  • Packaged for pick up or delivery.

  • Cast Iron Billet.
  • Specifications determined by 'spec' sheet.
  • Blank bar cut to length.
  • Bar then turned in CNC Lathe.
  • Pins, threads, tapping or milling put on billet.
  • Billet is then restraightened.
  • Placed on Repco or Sampson grinder for 'rough grind'.
  • Any drilling's are completed as required.
  • Billet is restraightened again.
  • Camshaft is then induction hardened.
  • Stress relieving process is preformed.
  • Camshaft is straightened if required.
  • Grinding of journals is completed.
  • Crack testing is performed.
  • Gears are heat treated if required.
  • Camshaft is straightened if required.
  • Gears are cut so both journals and gears are relevant to each other.
  • Final ground completed on camshaft.
  • Camshaft is 'Cam Doctored' to check final specifications.
  • Camshaft is 'Tufrited'
  • Then final processing of 'Lubriting' is completed.
  • Packaged for pick up or delivery.

  • Cast Iron Camshaft (pre moulded).
  • Camshaft cast to material patterns (done at foundry)
  • Specifications determined by 'spec' sheet.
  • Camshaft is 'faced'.
  • Camshaft is then 'centred'.
  • Camshaft is placed into CNC Lathe for rough turning.
  • All pins and any tapping are then completed.
  • Heat treatment is finalised.
  • Restraightening of camshaft is completed.
  • Grinding of journals is finalised.
  • Gears are cut so both journals and gears are relevant to each other.
  • Final grind is completed if camshaft requires from 'spec sheet'.
  • The camshaft is 'Cam Doctored' to check for final specifications.
  • 'Lubrite' is then done to preserve the camshaft.
  • Packaged for pick up or delivery.