Moreover, during period from nine months actual data for observed process were collected and ppm and RTY indices are calculated.
As Pareto diagram showed the highest volume of material scrap was in the Press operation because 60 % of scrap was in the direct relationship with removal burr on the press. Also, based on Pareto diagram of material scrap, conclusion was that the Material in the Sawing and Drilling operation has minor impact on the expenses level. So, at the end of this phase, decision was that Press and Control operations should be main objectives of further improvements