These are time losses due to regular cutting-blade exchanges and extraordinary replacement necessitated by blade damage and volume losses (defects and rework) that arise before and after blade replacement.
Cutting-blade losses are dropping due to material and shape studies yielding longer blade life, but they still pose a problem requiring further study.
In the case of transfer machines, cutting- blade losses may account for 10% to 12% of overall efficiency impedance, because the number of operators is few in relation to the number of the machines.
The reduction of cutting-blade losses requires study in both the fields of relevant technology (material changes, shape alteration, etc.) and software (vibration measurement and pursuit of optimum cutting conditions). The target is the maximisation of blade life
Methods of reducing cutting - blade losses
– Actual - state surveys
– Surveys of present cutting conditions
– Surveys of equipment/Jig precision
– Approach from inherent technology
– Approach from the vibration analysis
– Implementation of countermeasures
• This loss affects Availability ,OEE & OPE
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