| Budget Amount *help |
¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2013: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2012: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2011: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
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| Research Abstract |
It has been investigated for Belag (oxide protective film) formation interface, and the utilization of the results has been considered. Major following results were obtained.
1. It was found that Belag adhere without the reaction layer on the worn surface selectively by thermoelectromotive force generated during cutting, and adhere directly to the Ti compounds. This is why it does not form on the carbide K grade. Then, FeO is concentrated at the interface when cutting time becomes longer, leading to wear by diffusion reaction. 2. When machined the Ca deoxidized steel, including MnS, CaS layer occurs in Belag bond interface. As the result, tool life prolongation will be possible by preventing the concentration of FeO. 3. Differences were observed in the adhesion by the mineral water mist machining and the crystal orientation of the coating film. Potential as a method for reducing adhesion of workpiece has been found, including non-ferrous materials that results in severe adhesion.
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