Scenario

The analysis was based on the real-life data collected from a tool remanufacturer with the assumption of a 5-times remanufacturing cycle for each new tool. In practice this figure will be dependent on the type, shape of the tool. The inventory of component impacts included materials, energy, transport logistics, remanufacturing ratio for each part, and disposal and waste scenarios.

Findings

In summary, the carbon impact of remanufacturing cutting tools is considerably lower than that of new ones due to savings in production of materials with high embodied energy (special alloys): Only one fifth of the carbon burden of a new cutting tool is required for remanufacturing. In absolute terms, the carbon impact per kg of tool of a remanufactured end-mill is 1.3 kgCO2e compared to 6.4 kgCO2e of a new end-mill tool. Based on the sales figures in 2008, there is potential saving of 0.5 million tonne CO2e is available if remanufacturing cutting tools is fully adopted across industry.