POST-INDUCTION TEMPERING OF CV JOINTS

The Constant Velocity Joint is one of the most successful examples of high speed convection tempering. With 9 systems installed with three global CV Joint manufacturers, acceptance of soak time elimination is now past tense.

Eliminating the soak time muda (waste) requires precision. Not only precision of temperature uniformity, but precision in repeatability of heat transfer. Furnace design is a key factor in the performance of high-speed tempering processes. Heat transfer precision was demonstrated by thermal profile of the first, middle and last part in a 100-piece run.

The CV Joint story begins in 1999 with the acceptance of high-speed convection tempering at Ford Motor Company. With an aggressive 10-minutes cycle time, manual part handling was eliminated and work-in-process reduced by upwards of 90%.

A North American CVJ supplier replaced their in-line induction tempering process with Pyromaitre's high-speed convection technology. As the induction tempering process was the line bottleneck, its elimination allowed for nearly a doubling of line capacity. Pyromaitre ovens with 20-minutes tempering and recirculating air coolers were integrated to deliver a considerable return on a modest capital investment.

A South American CVJ supplier selected Pyromaitre's high-precision convection technology to reduce their WIP and streamline their lean compact manufacturing cell. The 20-minutes Pyro process was less than 1/3 of the conventional recipe.

With 400 systems operating in 15 countries, Pyromaitre is your global source for high-precision industrial tempering ovens. Give us a call to find out how we can PYROvide you with a competitive advantage?