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Hsiu-An Tsai on Muck Rack

Hsiu-An Tsai

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The Process Parameters of Micro Particle Bombarding (MPB) for Surface Integrity Enhancement of Cermet Material and Tool Steel

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By Li-jie Chen, Fu-Chuan Hsu, Zong-Rong Liu, Hsiu-An Tsai
| MDPI
4. Discussion For the same MPB parameters (pressure: B, bombarding time: 30 s), the average surface roughness of cermet was 0.55 μmRa for micro blasting and 0.13 μmRa for micro shot peening. In the case of the SKD 11 tool steel, the average surface roughness was 1.03 μmRa for micro blasting and 0.35 μmRa for micro shot peening, as shown in . The results revealed that the surface roughness of SKD 11 was about 1.9–2.7 times compared with that of cermet due to the higher hardness of cermet (HV 1906).
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