• Journal of the Korean Society of Manufacturing Process Engineers
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• v.21 no.2
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• pp.23-30
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• 2022

After drilling, reaming is required to process a workpiece for obtaining an excellent surface quality. In general, a cermet is defined as a "composite of a ceramic hard phase and metal-bonded phase." Cermets have excellent abrasion resistance, thermal resistance, and performance in finishing operations that require surface roughness and processing precision. However, although cermets have significant advantages, research on them is insufficient. In this study, workpiece SM45C was machined using drills and cermet reamers. The cermet reamer was processed for drag finishing for 0, 4, and 6 min. The experimental results showed the effects of drag finishing on surface roughness and dimensional accuracy.