The Effects of Milling Factors on Surface Finish of Chromium-Molybdenum Steel

Warachanin Wongsasiripat,Komson Jirapattarasilpls

doi:10.1051/matecconf/20166503001

Warachanin Wongsasiripat, Komson Jirapattarasilpls

Open Access

https://doi.org/10.1051/matecconf/20166503001

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Abstract

This research was to study effect of milling, which was affected on surface finish of Chromium-Molybdenum steel. Fifty-four pieces of JIS SCM 415 steel was used specimen. The experiment was done by CNC vertical milling machine and cutting tool was PVD coated tungsten carbide tool. The factorial design was applied and factors were consisted of three factors: cutting speed and feed rate and depth of cut that were set in three levels. The results revealed that surface finish was affected by two main factors of feed rate and depth of cut. On the other hand, cutting speed was not significantly main factor. However, interaction between cutting speed, feed rate and depth of cut were factors controlling surface finish. Finally, the effects of milling factors on surface finish were analyzed and discussed.

Highlights

Chromium-Molybdenum steel is alloy steel that contains low carbon
Effect of milling factors on surface finish was anylzed by the analysis of variance (ANOVA)
ANOVA indicated that the effect of feed rate and depth of cut were significantly difference at the confidant level

Summary

Introduction

Chromium-Molybdenum steel is alloy steel that contains low carbon. This steel uses for auto part and some machinery such as gear, shaft and piston. Factors of milling can be affected to quality of surface such as feed rate, cutting speed, depth of cut, cutting tool, cooling. The others material has been studied such as titanium alloy [4,5], nickel alloy[56], aluminum alloy [7] and polymer [8] They conclude that conditions of milling parameters based on feed rate, cutting speed, and depth of cut could be affecting to surface finish especially in case of steel. Chromium-Molybdenum steel especially JIS SCM 415 steel was interested and effects of milling factors on surface finish for Chromium Molybdenum steel should be study

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Conclusion